The Resource Guide for LS Performance
Why Is GM’s LS
The Most Popular
Engine Swap?
Modernize
Your Classic
Muscle Car
Basic & Beyond
– How To Select An EFI System
– Choosing The Right Drivetrain
– Custom Cam Buyer’s Guide
The Myths of
Nitrous Oxide
CPG2014-LS
Think all oil Performs
and Protects The same?
you are Wrong.
Driven is DifferenT.
#DrivenToWin
#DrivenToWin
#DrivenToWin
#DrivenToWin
#DrivenToWin
#Drive
Competition drives innovation. Born from Joe Gibbs Racing, the Driven
Racing Oil brand was created to advance engine and driveline lubricant
technology in all-out race and high performance engines. But what makes
our products so different from all the others?
raCers CreaTing soluTions for raCing engines
Racing is in the DNA of our company, and every product we develop is
proven to perform. From full synthetic race oils to engine break-in oils, Driven offers a wide range of race-winning products that deliver enhanced performance, protection and value. So whether you need gear oil for your quick
change or qualifying motor oil that provides every ounce of speed, put your
trust in lubricants engineered and proven to perform. Put your faith in the
innovator of high performance lubricants – Driven Racing Oil.
+5 HP
445
5800
5700
rpM
5600
5300
430
5200
435
5500
Driven Racing Oil beats the
competition by 5 HP at multiple RPM.
Driven 15W-50
National Brand 20W-50
440
5100
Due to ever tightening federal EPA requirements, today’s motor oils have
reduced quantities of anti-wear chemistries like Zinc, Phosphorus and Sulfur. As a result, the oil you buy today is not the same as it was 10 years
ago. While this is good for most stock daily driven street cars, it is bad
news for your racing engine. Racing engines see more RPM, higher loads
and increased temperatures compared to street engines, so a racing engine requires higher levels of these wear additives to prevent premature
part failure. So you see, the oil used in an engine needs to be formulated
specifically for that type of engine. You wouldn’t use a stock piston in a race
engine, and the same goes for oil. And that’s where Driven excels.
450
HP ComParison
5000
off-THe-sHelf oil may no longer be enougH To ProTeCT your engine
455
Horsepower
Our products are unique because we always put the “motor ahead of the
molecule.” Often, oil companies have no real world understanding of how
these products are actually used, but Driven keeps things in the proper
order. The oil is for the motor, not the other way around. Our product
development team looks at the motor and how it is used; then we design
application specific products using a “zero compromises” approach that
delivers a measurable performance advantage.
460
5400
Define THe Problem, solve iT WiTH CHemisTry – Zero ComPromises
r $30
e
v
o
save
CosT
ComParison
The “cheap” oil you have to change frequently costs more than you might think.
See the cost comparison below between the
“cheap” off-the-shelf oil versus using Driven
Racing Oil XP9 over a five race period.
CoNVeNtIoNAL rACING oIL
x5
$47.92 (8 quarts & filter)
= $239.60
Total Cost For
Oil After 5 Races
DrIVeN syNtHetIC rACING oIL
+
$135.92
(8 quarts & filter, first race)
1.866.611.1820 • DrIVeNrACINGoIL.CoM
= $203.88
$16.99
(4 times, once
per race)
Total Cost For
Oil After 5 Races
9305j
The Resource Guide For LS Performance
Welcome to LS Power, the automotive aftermarket’s resource guide for
LS performance. We’re the newest source for your LS-specific powertrain, including available engine and drivetrain upgrade components,
events, websites and forums, as well as LS project vehicles.
We’re showcasing companies that celebrate common traditions and
values – those of product innovation, superior engineering and unmatched customer service. Whether your LS-powered vehicle is classic or modern, LS Power has the optimal product solution for you.
Enjoy!
The LS Power Team
2013
Camaro 1LE
Daily Driving
a Super Car
27
1973 Camaro
Tearing Up The
Street Car Scene
52
AT A GLANCE
FEATURES
18 LS Swap
Why the LS platform is so popular
20 Bitchin’ Camaro
Carl Schultz �69 Camaro
20
2013 Camaro 1LE with mods
52 Second Gen F-Body
680 HP LS7
COMMUNITY
6
7
13
A complete EFI kit for your LS is
now available.
Increase power by simply changing
out your rocker arms.
41
34
56
The benchmark of LS power for
radical street & all-out racing.
LS Performance
Don’t underestimate the role your
torque converter plays in performance.
67
The proper camshaft is just as
important as your engine choice.
LS Events
Hot LS Websites & Forums
SHOP TALK
8
13
30
34
41
47
60
66
67
32
Intake manifolds with removable
runners for easy porting.
2
27 Red Hot Camaro 1LE
1969 Camaro
Modern LS Performance In
First Gen Camaro Package
What Makes Driven Oil Different
Rocker Arm Tech
Selecting An EFI System
LS Intake Manifold Selection
Torque Converters Explained
Aftermarket LS Transmissions
Nitrous Oxide Myths Debunked
LS Toolbox – Must Haves
Custom Cam Grinds
PRODUCTS
9
10
14
17
22
25
26
30
35
38
39
42
46
48
49
50
54
56
58
60
62
68
Speciality Oils
Lifters
Rocker Arms
Pushrods
Valve Springs
Cam Phaser Limiters/Accessories
Timing Sets
Electronic Fuel Injection Systems
Intake Manifolds
Throttle Bodies/Accessories
Fuel Injectors
Torque Converters
Transmissions/Kits
Flexplates
Drivetrain Electronics
Drivetrain Accessories
Clutches
Engine Blocks
Cylinder Heads
Nitrous Oxide Systems
Induction Systems
Camshafts
Spotlights
Brought to you by:
Driven Racing Oil
Toll Free: 1.866.611.1820
www.drivenracingoil.com
tech@drivenracingoil.com
facebook.com/DrivenRacingOil
twitter.com/DrivenRacingOil
COMP Cams
CAM HELP: 1.800.999.0853
www.compcams.com
camhelp@compcams.com
facebook.com/COMPWins
twitter.com/COMPCams
youtube.com/COMPCams
The Newest EFI Offering
From FAST Electronics
30
The Story Behind Driven
Racing Oil’s Success
8
Is A Custom Ground
Camshaft Right for You?
67
FAST
EFI HELP: 1.877.334.8355
www.fuelairspark.com
tech@fuelairspark.com
facebook.com/FASTWins
twitter.com/FuelAirSpark
TCI Automotive
TRANS HELP: 1.888.776.9824
www.tciauto.com
tech@tciauto.com
facebook.com/TCIAuto
twitter.com/TCIAuto
Quarter Master
Toll Free: 1.888.258.8241
www.quartermasterusa.com
facebook.com/QuarterMasterWins
twitter.com/QMClutches
RHS
RACING HEAD HELP: 1.877.776.4323
www.racingheadservice.com
rhstech@racingheadservice.com
facebook.com/RacingHeadService
twitter.com/RHSWins
ZEX
NITROUS HELP: 1.888.817.1008
www.zex.com
zextek@zex.com
facebook.com/ZEXNitrous
twitter.com/ZEXNitrous
InglГ©se
STREET ROD HELP: 1.866.450.8089
www.inglese.com
info@inglese.com
facebook.com/IngleseInduction
twitter.com/IngleseStyle
compperformancegroup.com
3
+
Classic Muscle Car
Soul
Modern Car
technology
Second generation LS-powered Chevy
Camaro at the Year One Experience
taking in Road Atlanta’s 2.54-mile
Grand Prix road course.
4
LS Performance
= automotive
Nirvana
LS
EVENTS
Got an LS-powered vehicle?
Here’s where you need to be.
HOT ROD Magazine Power Tour
Widely considered to be the finest high-end automotive tour in the world, the HOT ROD
Magazine Power Tour embodies everything that HOT ROD Magazine has represented for
over 65 years. This seven-day, seven-city tour will travel over 1,500 miles through seven
states, kicking off in Charlotte, NC, and traveling to Wisconsin Dells, WI. Check out the list
of events below and catch them when they travel near you — or better yet — join them!
Saturday, June 7
Sunday, June 8
Monday, June 9
Tuesday, June 10
Wednesday, June 11
Thursday, June 12
Friday, June 13
Charlotte, NC
Knoxville, TN
Charleston, WV
Norwalk, OH
Crown Point, IN
Bettendorf, IA
Wisconsin Dells, WI
Charlotte Motor Speedway
Chillhowee Park

Downtown (Kanawha Blvd)
Summit Motorsports Park

Lake County Fairgrounds

The Isle Casino

Chula Vista Resort
LS Series Showdown
(Southern California)
Drag racing, auto cross or cruise, the LS Series
Showdown has it all for you. Staged over four days
in August, these special LS-centric events are tons
of fun for you and the family.
Drag Racing
Saturday, Aug. 2  4 p.m. – 10 p.m.
Irwindale Speedway
500 Speedway Drive • Irwindale, CA
626.358.7432
Big Bear Cruise
Monday, Aug. 3  9 a.m.
LS Fest
The Holley LS Fest is a celebration of anything and everything powered by the incredible GM LS engine. If an LS-based engine is powering your ride or if you are
considering a swap to LS power, this is your event. Race cars, street rods, muscle
cars, trucks, late models, drifting — you name it. If it is powered by an LS, there will
be something here for you!
September 5-7
Bowling Green, KY
Beech Bend Raceway
Chevy Performance LSX
Challenge Series | NMCA
Chevy High Performance (All-GM) Nationals
Commerce, GA
Atlanta Dragway
Norwalk, OH
Summit Motorsports Park
Bowling Green, KY Beech Bend Raceway
LS Fest
Sept. 5-7 NMCA Indiana/LSX Shootout
Oct. 9-12
6
Monday, Aug. 4  10:30 a.m.
Hooters
725 North Milliken Ave. • Ontario, CA
909.989.2209
Monday, Aug. 4  3 p.m. – 10 p.m.
Adams
5292 24th Street • Riverside, CA
951.686.3826
Car Show 
NMCA Norwalk
Aug. 21–24
Lunch 
Auto Cross 
Developed from the excitement of the LSX Shootout and going on its third year, the LSX
Challenge Series will run at four select events in 2014:
May 30–June 1
92-Mile Cruise
Wildwood Park • 536 E. 40th St. & Waterman Ave
San Bernardino, CA
Indianapolis, IN
LS Performance
Lucas Oil Raceway
Tuesday, Aug. 5  8 a.m. – 3 p.m. (7 a.m. for
Vendors)
K&N
1455 Citrus Street • Riverside, CA
800.858.3333
LS
Online
Resources
The best places to research, learn about, shop for
and just have fun with your LS-powered vehicle
Top Forums
Top Websites
LS1Tech.com
LSXTV.com
One of the most robust LS vehicle forums. Site includes full
range of for sale parts, educational content and lots of general
tech discussions – just to mention a few initial topics.
Full of electronic magazine
content on everything LS,
this site feeds daily content
to fans of this popular
engine. It is linked to the
innovative Power AutoMedia,
which generates a huge
amount of entertaining and
informative video content
that no LS fan will want to miss.
Camaro5.com
The most complete forum covering the 5th Gen Camaro. Covers
everything from events to parts and cars for sale to tech, how
to’s and just general discussion.
LS1.com
General LS content site where, as they say, “just about anything goes on LS related news.” Notable topics include parts
for sale, Pontiac WS6 & Camaro SS tech and FAQs on LS
engines of all types.
LS1GTO.com & LS2GTO.com
The top forum sites for information about LS1 and LS2 powered 04-06 Pontiac GTOs.
S10racer.com
If you race or just enjoy high performance LS engine-powered
S-series Chevy trucks and Blazers, the S10 racer forum covers
lots of insider information for LS1, LS2, LS6, LS7 and LSX
engine tuning.
GMInsideNews.com/forums
This site offers up tech and news about GM engines and
vehicles. The LS section includes not only news but also tech
content covering things like oiling systems, wiring harness
updates and general LS development.
GMHighTechPerformance.com
Delivers tech articles, news
and reviews to the late model
GM performance community.
Read the GM blog for advice,
expert opinions and discussions from around the world.
The site showcases additional
tech advice about all GM
engines, shootout racing and
detailed GM engine builds.
ChevyHardCore.com
ChevyHardCore.com is an
all-performance Chevy online magazine, providing the
latest in up-to-date industry
news, nationwide event coverage, technical articles, tuning secrets for the street and
strip, and features on some
of the coolest machines to
ever come from the General.
compperformancegroup.com
7
Driven Is
Different
If you think all oil performs
and protects the same then
you would be mistaken.
Driven Racing Oil’s Lubrication
Specialist Lake Speed, Jr. tells us just
how different Driven Racing Oil is.
A
ccording to Speed, “the last thing the world needs
is another oil company” and “there’s no such thing
as the best oil.” Strange words coming from a man
who has devoted his entire career to just that – oil. But
this devotion also makes him understand that “best oil”
isn’t actually the principle – it’s the “right oil.”
Driven Racing Oil was originally created to advance
engine and driveline lubricant performance in all-out
race and high performance engines, but now those
innovations extend beyond the racetrack to the street.
The product line is unique in that it “puts the motor
ahead of the molecule.”
Often oil companies have no real world understanding
of how these products are actually used, but Driven
keeps things in the proper order. The oil is for
the motor, not the other way around. The product
development team looks at the motor and how it is
used; then they design application specific products
using a “zero compromise” approach that delivers a
measurable performance advantage.
Lake Speed, Jr. Explains Why “Driven Is Different.”
Does racing R&D transfer to the average Joe on the street?
What we learn in racing we do apply across the board – we the take basic chemistry from the toughest race
environment and apply it to street performance.
You’re a small company – how are you able to compete with the big name companies?
The small company size allows us to be nimble and deal directly with the end user. When you call Driven, you talk
to the head tech guy, not a mid-level customer service person who didn’t actually formulate the product. And our
products are used at the highest levels of motorsports all the way back to the guy in his garage.
What does the future hold for Driven?
We stay in constant communication with the end user to stay on top of an ever evolving market. So, armed with
that information, we’ll then use chemical engineering to enable higher performance, better fuel economy and
lower emissions across the spectrum of vehicles. This will also help us develop more advanced technology to
bring to the table. Performance enthusiasts will always push the envelope – we’ll help push them to that next step.
8
LS Performance
Break-In
Driven’s petroleum BR30 Break-In Oil provides optimum levels of Zinc and Phosphorus
and ensures excellent ring sealing for LS engines. Good for up to 400 miles. Quarts
starting at $8.99.
Street Performance
Modern high performance LS street engines place high demands on a motor oil. Idling,
Ethanol-blended fuels and extended periods of storage can cause corrosive wear
problems. This LS-specific oil from Driven utilizes race proven technology to protect on
the road and in the garage. Quarts starting at $10.99.
Break-In Oils
Competition/Race
Description
BR30  5W-30
Oil provides the thin film of lubricant that keeps your LS race engine from going over
the edge during competition. Driven Racing Oil developed a race-specific oil to deliver
a competitive advantage without compromising durability. Formulated with more Zinc,
Moly and proprietary friction modifiers than competitors. Quarts starting at $16.99.
Street Peformance
Driveline
Competition/Race Oils
The pursuit of increased power output and durability does not end at the flywheel. The
engineering staff at Driven Racing Oil looks for every possible advantage, and Driven
products deliver measurable performance gains in transmissions, rear gears and power
steering. Quarts start at $10.99.
CSP – Coolant System Protector
Don’t put your engine at risk from the corrosive effects of coolants mixed with minerals
in non-distilled water. Driven CSP neutralizes these minerals and prevents damage due
to hard water. Keeps engine coolant passages clean and lubricates water pumps. Do
not mix with other coolant additives. 12 oz. Bottle starts at $9.99.
Description
LS30  5W-30
Description
Synthetic  XP3 10W-30
Qt. Bottle
01806
Case (12 Qts.)
01807
Qt. Bottle
02906
Case (12 Qts.)
02907
Qt. Bottle
00306
Case (12 Qts.)
00307
Qt. Bottle
04006
04230
01306
Case (12 Qts.)
04007
04231
01307
Driveline
Description
Synchromesh Trans. Fluid
Limited Slip Gear Oil 75W-90
Power Steering Fluid
CSP
Description
Coolant System Protector
12 oz. Bottle Case (12 Btls.)
50030
50031
compperformancegroup.com
9
The Most Advanced
LIFTERS
We went to the
valve train experts
at COMP Cams to
get the scoop on
their line of LS
performance lifters.
3
2
1
Link Bar Hydraulic Roller Lifters
(Patent Pending)
This COMP Cams hydraulic roller lifter with a link bar design
does away with the factory lifter trays and features a patent
pending piston allows trapped air to escape the lifter for faster
“pump up.” Axles produced from premium 52100 heat-treated
steel make for increased wear resistance and overall strength
while still maintaining an overall lightweight body design.
Starting at $551.86.
Link Bar Short Travel
Hydraulic Roller Lifters (Patent Pending)
These hydraulic roller lifters from COMP Cams let you have the
advantages of both a light pre-load that allows quick recovery
from bad harmonics in the valve train and heavier pre-load that
reduces oil volume under the plunger and increases stiffness.
These are the most stable and highest revving hydraulic lifter
available for LS engines. Starting at $564.17.
Endure-X
Solid Roller Lifters
With today’s more aggressive cam lobe designs and
increased RPM ranges, it takes a superior roller lifter to withstand the abuse. COMP Cams addressed
this issue with the Endure-X Lifters that are fully
heat-treated, machined to ultra-high tolerances and
are fully rebuildable. The four main features of
these lifters include: a removable link bar, EDM Oil
Injection Technology, precision sorted needle bearings and a tool steel axle. Starting at $606.91.
Removable Link Bar  Combines the benefits of a removable link bar with the safety of a captured link bar.
EDM Oil Injection Technology  Guarantees the bearing assembly receives a constant flow of pressurized oil via
a precision hole aimed directly at the needle bearings.
Precision Sorted Bearings  Precision-sorted by size
to distribute load evenly, preventing premature
wear and failure.
Tool Steel Axle  Made of wear resistant Tool Steel to
prolong life of the roller assembly.
Description
1. Link Bar Hydraulic Roller Lifters  LS Series Captured Link Bar Roller Lifter for 1997-Up,
Fits Factory, RHS, LSX & Warhawk Blocks
2. Link Bar Short Travel Hydraulic Roller Lifters  LS Series Captured Link Bar Roller Lifter
for 1997-Up, Fits Factory, RHS, LSX & Warhawk Blocks, Short Travel, Link Bar Guide
Description
3. Endure-X Solid Roller Lifters  GM Gen III/LS1/LS2/
LS6 Solid Roller Lifters в€’ Not Designed for Street Use
Endure-X Solid Roller Lifters  GM Solid Roller Lifters
for LSX & Warhawk Block
10
LS Performance
Diameter Weight
Lifters
.842"
118g
(16)
8956-1
.842"
118g
(16)
8956-1
Link
Bars
Diameter
Weight
Seat Height
Part #
.842"
140g
2.66"
8957-16
.842"
145g
2.66"
15956-16
Pushrod Seat
Location
Oil Hole
vs. Axle
Seat
Height
Part #/Style
8956-16
(16) Centered Perpendicular 2.01"
Cutaway w/ Oil Band
8958-16
(8)
(16) Centered Perpendicular 2.01"
8958-L
Cutaway w/ Oil Band
(8)
838-L
A
F
B
E
Path Of
Pressurized Oil
C
D
FEATURES:
Elite Race Solid Roller Lifters
(Patent Pending Oil Control)
COMP Cams Elite Race Lifters feature a host of advantages over competing race
lifter designs, including an SAE 8620 stainless steel alloy body that is CNC-machined and REM-finished, SAE 9310 steel alloy wheels that are micro-polished
and micro-sized and needles that are made from 52100 bearing steel and micro-sorted with a controlled contour profile.
The exclusive body design does not include an oil band, thus maximizing rigidity and reducing lifter bore wear. While the construction and body design make
them incredibly strong, the Elite Race Lifters are also lightweight, with each
lifter weighing less than 100 grams individually. All lifter bodies are “tall” and
will clear both stock and aftermarket .300" tall lifter bores and will properly fit
either 5/16" or 3/8" ball pushrods. Starting at $965.63
The Four Main
Features Of
Elite Race
Solid Roller Lifters:
1
Modular Design
Pushrod seat insert can
be changed for centered,
left or right offsets. A
patent-pending design
allowing oil control through
the pushrod insert lets
builders modify lifters to
meter extra oil to the top.
Description
LS Series, GM Gen III/IV
LS Series, GM Gen III/IV
Diameter
.842"
904"
A
Captured Link Bars
B
Lightweight Arm Design
C
.400" Diameter Oversized
Hollow Axle (Largest in Industry)
D
9310 Steel, Precision-Ground
& Polished Wheels w/ Micro-Sorted,
Precision-Ground Needle Bearings
E
CNC-Machined & Ground,
REM Polished 8620 Steel Body
w/ Increased Surface Area
F
Exclusive Column Design
2
3
4
.400" Axles (extra large for
maximum load support)
allow for extra needle
bearings (total of 23) for
optimum load distribution.
Needles are constructed
from 52100 bearing steel
and are micro-sorted with a
contoured profile.
Center and top axle oil
outlets for lubrication
through the axle, directly to
the needles в€’ exactly where
you need it.
Designed specifically for
race and high RPM applications, captured link bars
offer maximum control and
durability.
Tool SteeL,
Pinned Axles
Weight
99g
120g
Pressure-Fed
Oiling
Pushrod Seat Location
8 Pairs Centered
8 Pairs Centered
Wheel Diameter
.750"
.820"
Captured
Link Bars
Seat Height
2.22"
2.25"
Part #
98956-16
98952-16
* Lifter bore spacing min. 1.700" & max. @ .450" lift is 1.975"/@.500" lift is 1.950".
compperformancegroup.com
11
More Than
JusT CaMs
Proven UPgrades For YoUr Ls
LS Front Covers
[ ALL hARdWARE INCLUdEd [
Why You Need It? A unique design allows these covers to work
with both front and rear cam sensor, OEM and aftermarket LS engines.
No modifications are required.
What Makes It Better? LS Front Covers feature provisions for
a timing pointer, OEM camshaft sensor and any regular SBC crank
trigger. They easily fit double roller timing chains and high pressure/
volume oil pumps, and come with a gasket and crank seal.
LS Rocker Trunnion Upgrade Kit
Why You Need It? This retro-fit kit converts a stock LS rocker
#5496 (LS1/LS2/LS3/LS6)
#5497 (LS7)
#13702-KIT
arm into a captured roller trunnion for performance applications.
What Makes It Better? Proven in NASCAR LS spec race engines,
the LS Rocker Trunnion Upgrade Kit increases valve train stability
and stiffness to achieve maximum valve motion.
Other POPular lS acceSSOrieS
#251
#5461
#5462
Uses an innovative and easy-to-install design to
prevent cam bolts from backing out at any RPM
level or load in GM Gen III/IV LS Engines.
facebook.com/COMPWins
Engine Plug Kit
Made from brass and galvanized steel to resist corrosion, the plugs in this kit will last for years without
rusting or getting stuck in the engine block.
twitter.com/COMPCams
COMPCAMS.COM
youtube.com/COMPCams
CAM HELP В® 1.800.999.0853
LS Valve Spring Compressor
Enables the removal of two valve springs at a time,
without first having to remove the rocker stand or
any of the other installed rockers.
Engineered To Finish First.
9196j
Three-Bolt Cam Lock Plate
101
Rocker ArmS
O
ne of the most important components in your
engine is the rocker arm. It is also one of the
most vulnerable. As the turning point of the
valve train, the rocker arm is basically a sophisticated
lever that redirects the upward tappet and pushrod
movement and then multiplies it by the rocker ratio to
downward movement at the valve.
Aluminum Rockers
Until recently, aluminum rocker arms have been considered a
more affordable but less durable option to steel rockers. COMP
Cams has developed aluminum rockers that use precision-sorted needle bearing trunnions to withstand both aggressive spring
pressures and valve lift. The COMP Cams Ultra-Gold ARC Aluminum Roller Rockers actually have the highest rocker-to-valve
spring clearance of any aluminum rocker – up to 1.625" valve
spring O.D. And while these aluminum rockers are lightweight,
they are still incredibly strong and feature a lifetime warranty.
Make the rocker arm stiffer  To increase stiffness,
look at three characteristics: material, geometry and the
rocker’s holding fixture. The easiest way to increase stiffness
is to switch to chromemoly steel. Although heavier than some
other materials, it can offer some design advantages and
have much thinner sections than aluminum due to its superior
strength density. Stiffness of the mounting is just as important
as the stiffness of the rocker body. For the ultimate in high performance, shaft mounted rockers may be the way to go.
Steel Rockers
COMP Cams steel rocker arms are all constructed from 8620 or
8650 chromemoly steel, which is a higher grade material that
makes them extremely durable and tough. The material keeps
them from flexing, and they have large trunnions and more needle bearings, which allow the load to be more evenly spread
and the rocker to last longer. Steel can thus be run in harsh environments without fatigue issues. Some COMP steel rockers are
even lighter than most aluminum because COMP has reduced
mass in low stress areas.
Decrease the moment of inertia  The moment of inertia
is the rocker’s resistance to rotation. The higher this measurement, the more valve spring pressure it takes to control the
rocker arm instead of the valves – losing RPM and horsepower.
The moment of inertia is lowered by lightening the rocker arm’s
weight, particularly at areas that are farther from the trunnion.
Two ways you can do this are by switching to a lighter weight
material or by removing mass from the rocker body design.
stud/Shaft mounted
Three Basic Ways To Increase Power
Through A Rocker Arm Change
This is a highly critical process. Due to stresses and
vibrations, which are more prevalent during high speed
operation, rocker arms undergo what is known as deflection. Severe rocker arm deflection causes inefficient
engine performance, and often results in metal fatigue
leading to increased wear and friction in the valve train
and eventually engine failure.
1
2
Lift the valve more  By increasing the rocker arm ratio, it’s
possible to increase valve lift without ever touching the camshaft. Valve lift can typically be increased as much as 10% by
increasing rocker ratio.
3
Stud mounted rockers have evolved over the years, resulting
in geometric design changes that led to the innovative arched
web design seen in today’s Ultra Pro Magnum and Ultra Pro
Magnum XD Rockers from COMP Cams.
Shaft mounted rockers have increased mounting stiffness and
valve train stability. These systems are designed for high-end
performance applications.
compperformancegroup.com
13
Ultra Pro Magnum
Roller Rocker Arms
A
Ultra Pro Magnum Roller Rocker Arms from COMP Cams take
stud mount rocker performance, stability and value to a whole
new level. The modern arched, web-like design delivers increased strength and rigidity while still reducing the moment of
inertia and optimizing the dynamic balance. Starting at $387.69.
8650 Chromemoly Body  Body material and arched, web-like design deliver increased strength and rigidity while reducing moment of inertia.
Increased Retainer & Spring Clearances  Allow the use of large
diameter springs, retainers and +.050" locks without clearance
or fitment issues.
Spring Pressure  Withstand valve spring pressures up to 850 lbs.
Black Oxide Finish  Exterior finish prevents corrosion, thus increasing durability.
Features  Oversized trunnions, precision-sorted needle bearings
and hardened roller tips.
B
GM LS Ultra Pro Magnum
Rocker Arm Kits
Designed to fit under stock valve covers without machining,
COMP GM LS Ultra Pro Magnum Rocker Arm Kits are the simple
solution for upgrading to an adjustable valve train in your GM
Gen III/IV engine. Includes rocker arms, guide plates, rocker
studs, adjusting nuts and set screws. Starting at $579.79.
OEM LS Rocker Arm
Trunnion/Roller Bearing
Upgrade Retro-Fit Kit
C
COMP Cams can help you convert a stock LS series rocker arm
into a captured roller tunnion for race applications with this
retro-fit kit. Proven in the NASCAR LS spec engine, it increases
stability and stiffness. Starting at $144.56.
Description
Ultra Pro Magnum Roller Rocker Arms  GM LS1/LS2/LS6 (Adjustable)
Ultra Pro Magnum Roller Rocker Arms  GM LS1/LS2/LS6
B. Ultra Pro Magnum Roller Rocker Arms  GM LS3/L99/L92 (Factory Offset, Adjustable)
Ultra Pro Magnum Roller Rocker Arms GM LS3/L99/L92 (Factory Offset)
Components
GM LS Ultra Pro Magnum Rocker Arm Kits  LS1/LS2/LS6
1.8:1 Ultra Pro Magnum Rocker Arm Set
5/16" Flat Guide Plates for 5/16" Pushrods
3/8" Rocker Studs
3/8" Adjusting Nut
Set Screw
Kit Part #
16755-KIT
LS Performance
Stud/Pedestal
3/8" Stud
Pedestal
3/8" Stud
Pedestal
Ratio
1.8
1.8
1.8
1.8
Components
C. GM LS Ultra Pro Magnum Rocker Arm Kits  LS3/L99/L92
1.8:1 Ultra Pro Magnum Rocker Arm Set
5/16" LS3 Guide Plates for 5/16" Pushrods
3/8" Rocker Studs
3/8" Adjusting Nut
Set Screw
Components
D. OEM LS Rocker Arm Trunnion/Roller Bearing Upgrade Retro-Fit Kit  Rocker Arm Trunnion
OEM LS Rocker Arm Trunnion/Roller Bearing Upgrade Retro-Fit Kit  Rocker Arm Bearing
OEM LS Rocker Arm Trunnion/Roller Bearing Upgrade Retro-Fit Kit  Rocker Arm Retaining Ring
14
D
Part #
1675-16
1677-16
1676-16
1678-16
Kit Part #
16765-KIT
Part #
13702-KIT
Ultra-Gold ARC Aluminum
Roller Rocker Arms
Designed for high performance street and race engines,
the CNC-machined, lightweight design improves quality while
increasing engine power and enhancing valve train stability.
C
Ultra-Gold ARC Series Aluminum Rocker Arms feature a spring oiler channel through the body for improved lubrication. Standard
trunnion retaining clips have been replaced with an ultra durable
spiral lock type clip, similar to what holds a piston pin in place.
Stress relieving radii have also been added to areas of the body,
trunnion and pushrod seat insert. Even the included locking nuts
have an increased surface area to better maintain lash/pre-load and
eliminate wear. Starting at $520.99.
B
A
Using cutting-edge design techniques and manufacturing processes, COMP Cams created the Ultra-Gold ARC (Arced, Recessed, Contoured) Rockers increase engine power, enhance valve train stability and improve oiling in high performance street and race engines.
They feature an extrusion developed through FEA analysis, resulting in a stronger, stiffer body without compromising mass.
An arced channel and contoured top, similar to a bridge design,
give the rockers the best strength-to-weight ratio possible. The
body also has additional CNC contouring to improve clearances
for valve covers and springs.
A
A
Multiple oil passages for valve &
spring tip lubrication.
B
Precision-sorted trunnion bearing withstands aggressive valve
spring pressure & valve lift.
C
Arced design with channel
& contoured top give best
strength-to-weight ratio.
Limited Lifetime Warranty
Ultra-Gold ARC Aluminum Roller Rocker Arms are so strong that COMP Cams
warranties the rocker bodies against breakage for life.
Description
GM LS1/LS2/LS6 – Non-Adjustable
GM LS1/LS2/LS6 – Non-Adjustable
GM LS1/LS2/LS6 – Adjustable
GM LS1/LS2/LS6 – Adjustable
GM LS3/L99/LS92 – Non-Adjustable
GM LS3/L99/LS92– Non-Adjustable
GM LS3/L99/LS92 – Adjustable
GM LS3/L99/LS92 – Adjustable
1 Includes pedestals and bolts.
Stud/Pedestal
Pedestal
Pedestal
Pedestal
Pedestal
Pedestal
Pedestal
Pedestal
Pedestal
Ratio
1.72
1.82
1.72
1.82
1.72
1.82
1.72
1.82
Part #
19024-161, 2
19025-161, 2
19026-161, 2
19027-161, 2
19028-161, 2
19029-161, 2
19030-161, 2
19031-161, 2
2 Clearance must be checked when using stock valve cover.
compperformancegroup.com
15
Shaft Mount
Aluminum Rocker Systems
Shaft mount rocker systems transfer the power of
the camshaft to the valve by properly positioning
the rocker over the valve. According to COMP Cams
the rigidity of the shaft system adds stability to the
cylinder head and valve train, and the oiling system
ensures consistent oil flow from the pushrod cup
to the shaft bearings and then on to the roller tip.
Constructed from 2024 aluminum and uses an 8620
hardened steel shaft. Starting at $1,183.98.
Standard One-Piece
Non-Adjustable Guide Plates
Guide plates are a must for the high lift/spring pressure
environments of today’s stud-mount, rocker-equipped
performance engines. Each one is designed using stereo
lithography design techniques for the most accurate fit.
COMP Cams Guide Plates are hardened and black oxide
finished while also featuring exact stud placement and
rounded contact points. Starting at $20.52.
Shaft Mount Aluminum Rocker Systems 
Shaft Mount Aluminum Rocker Systems 
Shaft Mount Aluminum Rocker Systems 
Shaft Mount Aluminum Rocker Systems 
Shaft Mount Aluminum Rocker Systems 
Description
GM LS1/LS2/LS6
GM LS1/LS2/LS6
GM LS3/L92
GM LS7
GM LS7/RHS Raised Port
Ratio
1.7
1.8
1.7
1.8
1.8
Intake Offset
.000
.000
.215
.350
.420
Part #
15001
15011
1521
1523
1525
Type
Flat
Flat
Flat
Pushrod Size
5/16"
3/8"
5/16"
Stud Dia.
8mm
8mm
8mm
Part #
4854-81
4856-81
4840-8
Length
.800"
Stud Diameter
3/8"
Effective
Stud Length
1.500"
Part #
4554-161
1 Requires valve cover spacer or baffle removal.
Description
Guide Plates  GM LS1/LS2/LS6
Guide Plates  GM LS1/LS2/LS6
Guide Plates  GM LS3/L99/L92
1 Replacement components only, must be used with #16755-KIT and #16765-KIT.
Base Thread
Description
Hi-Tech Race Rocker Stud  GM Gen III/LS1/LS2/LS6
1 Replacement components only, must be used with #16755-KIT and #16765-KIT.
16
LS Performance
Diameter
8mm
A
Tech Notes
Pushrod Length &
Rocker Arm Geometry
A large number of variables are involved
in determining the correct pushrod
length for your application. Pushrod
length is affected by any of the following:
B
Hi-Tech Pushrods
One-piece design pushrods from .080" wall seamless chromemoly tubing ensure the ultimate in strength and durability. The ends are precision formed,
yielding added thickness in the critical tip area for strength while maintaining
constant wall thickness and concentricity. The pushrods are then heat-treated
to ensure compatibility with guide plates and for maximum strength. They are
OD-ground for consistency and black oxide finished with a length and part
number laser etched on the OD for ease of identification. Offered in a variety
of lengths by COMP Cams. Starting at $150.82.
5/16" Ball Type Ends  Precision formed and reinforced ball type ends
Black Oxide Finish  Black oxide finish with laser etched part number and length
Applications  Ideal for serious street performance and race applications
Hi-Tech Oil Restricting
5/16" One-Piece .080" Wall Pushrods
COMP Cams offers Hi-Tech Pushrods for GM Gen III engines that restrict oil
flow. While the standard Hi-Tech Pushrods feature .100" oil holes, the oil restricting pushrod openings are half that size at .050". These pushrods include
one-piece 4130 chromemoly material with a wall thickness of 0.080" and 60
Rockwell hardness. Each pushrod is clearly labeled with part number and
length. Starting at $206.89.
•• Block deck height
•• Head deck height
•• Head stud boss height
•• Rocker arm brand/design
•• Cam base circle size
•• Lifter design/brand/pushrod
seat height
•• Valve stem length
Any number of items can vary from engine to engine, requiring you to use a
different pushrod length. Following the
steps below will streamline the pushrod selection process, ensuring that
you get the right parts the first time.
1. Buy a checking pushrod.
2.Determine correct valve train
geometry.
3. Measure the resulting pushrod.
ON THE WEB
To see full descriptions of these
pushrod measuring techniques
and valve train geometry, visit the
LEARNING CENTER at COMPCAMS.COM.
GM Gen III/LS1/LS2/LS6
Description
A. Hi-Tech Pushrods  –.100" Short
Hi-Tech Pushrods  –.075" Short
Hi-Tech Pushrods  –.050" Short
Hi-Tech Pushrods  –.025" Short
Hi-Tech Pushrods  Standard Length
Hi-Tech Pushrods  +.025" Long
Hi-Tech Pushrods  +.050" Long
Hi-Tech Pushrods  +.075" Long
Hi-Tech Pushrods  +.100" Long
Hi-Tech Pushrods  Standard Length GM LS7
B. Hi-Tech Oil Restricting 5/16" One-Piece .080" Wall Pushrods 
Hi-Tech Oil Restricting 5/16" One-Piece .080" Wall Pushrods 
Hi-Tech Oil Restricting 5/16" One-Piece .080" Wall Pushrods 
Hi-Tech Oil Restricting 5/16" One-Piece .080" Wall Pushrods 
Hi-Tech Oil Restricting 5/16" One-Piece .080" Wall Pushrods 
–.100" Short
–.050" Short
Standard Length
+.050" Long
+.100" Long
Wall Thickness
.080"
.080"
.080"
.080"
.080"
.080"
.080"
.080"
.080"
.080"
.080"
.080"
.080"
.080"
.080"
Diameter
5/16"
5/16"
5/16"
5/16"
5/16"
5/16"
5/16"
5/16"
5/16"
3/8"
5/16"
5/16"
5/16"
5/16"
5/16"
Length
7.300"
7.325"
7.350"
7.375"
7.400"
7.425"
7.450"
7.475"
7.500"
7.750"
7.300"
7.350"
7.400"
7.450"
7.500"
Part #
7949-16
7794-16
7950-16
7795-16
7955-16
7796-16
7956-16
7797-16
7957-16
8905-16
8305-16
8306-16
8307-16
8308-16
8309-16
compperformancegroup.com
17
LS
THe
Universal
Engine Swap?
GM’s LS-based engines are the most popular engine swaps today
with muscle car and hot rod car builders. So what makes them so popular?
W
hen the first LS engine
appeared in the 1997 Corvette, it left traditional
Chevy engine fans scratching their
heads. Here was an engine that rewrote all of the rules with virtually
nothing that interchanged into the
classic Small Block Chevy launched
way back in 1955. Some doubted its
staying power. But engine builders
took a wait-and-see mentality to
determine if the aftermarket would
embrace this new engine.
As we all know now, the LS family
of engines has grown dramatically.
Its versatility to make power and
torque with new and uniquely LSbased components has changed the
way racers and enthusiasts race and
drive their vehicles. Today it has become the preferred “resto-mod” engine for a number of reasons.
Top reasons to go LS
Great durability: The LS engine has
better sealing characteristics than either the classic Chevy small or big
18
LS Performance
Key Design Features Common to all LS Engines
1. No distributor – coils are mounted on
valve covers
2. Center main thrust bearing
design for better strength
3. Each cylinder features four
head bolts
block engines. This includes not only
the oiling systems, which were tragically flawed with the classics, but
with head gaskets which have better
cylinder and water jacket sealing.
Easily adaptable:  As the engine has
evolved, both the factory and the aftermarket have created new ways to
make power. Whether you are using
the steel block truck LS base (which
is highly available, sturdy and inexpensive) all the way to the LS9, you
can swap from a wide range of heads
and cranks along with naturally aspirated intakes, superchargers or turbo
systems. The number of aftermarket
components available from intake
4. Each main bearing cap features
six bolts
5. The block bore spacing on all
engines is 4.40"
6. Lifter bores measure 0.842"
in diameter
manifolds to off-the-shelf and custom
ground camshafts make just about
any performance target reachable.
Easy power: While the newest LS9
engine makes up to 638 horsepower and tons of torque, aftermarket
changes can net far more power. This
slim dimensioned engine (have you
measured the Ford Coyote engine
valve cover width?) will fit in a wide
variety of engine bays. But the key
is the ease with which power adder
parts can be bolted in place. Just take
a surf for online products through
the Summit (www.summitracing.
com) or Jegs (www.jegs.com) websites for some happy results.
Popular LS Engine Swaps
1. Camaros and Firebirds from 1967–81
and Chevy Nova from 1968–74
2. Chevelles from 1964–72
3. C10 Chevy/GMC Trucks from 1967–72
& 1973–87
4. Y-Body Corvette from 1963–67 &
1972–81
5. Classic 1955–57 Chevrolets
6. Mazda RX7 – all generations
7. GM G-Body Platform – Malibu,
Monte Carlo, etc. from 1978–88
8. Datsun Z-Car – 240, 260 & 280Z
9. Any hot rod – 1948 & older
Pontiac Firebird
Chevrolet Corvette
Emissions compatible: GM started early
in the game of building engine “packages,” making it easy for enthusiasts not
wishing to battle emissions regulations.
LS engine buyers will find it easy to build
up an engine that features excellent drivability through modern car-style fuel injection and full emissions legality.
Engine Swap Kits
There are a wide variety of engine swap
kits available that allow easy installation
of your LS engine into many classic domestic and assorted import vehicles.
They offer hard-to-find parts, such as oil
pans, that are compatible with the OEM
tie rods and K-members, remote air intake systems that sidestep the need for
modifying stock hoods and complete
electronic fuel injection wiring retro-fits
to replace classic carbureted engines with
modern fuel injection. Your best guide
here are LS forums such as LS1Tech.com.
The possibilities will amaze you.
Chevrolet Chevelle
Popular Links
COMP Cams Valve Train Parts
www.compcams.com
Chevy Crate Engine Guide
www.chevrolet.com/performance/
crate-engines.html
Datsun 280Z
compperformancegroup.com
19
Bitchin’
Camaro
LS power & modern day suspension make this classic muscle car 100% cool
Photos by Norm Brandes & Joe Lewandowski
Carl Schultz had a ’69 Camaro.
It was a clean, very straight, old restoration with classic drivetrain but in
need of new power and suspension.
With dreams of a more modern and
efficient muscle car, Carl met with
Norm Brandes and Jim Daley from
Silver Lake, Wisconsin’s Westech Automotive at the 2012 Performance
Racing Industry show in Orlando.
Shortly thereafter, a complete Camaro ready for performance upgrades
showed up at the Westech Shop.
After serious discussions among all
involved about potential forms of
LS engine transplants, Carl, owner
of Five Star Racing Bodies, settled
on a new GM Performance LSX454
engine cranking out over 620 horsepower. Adding to that total, Westech
Automotive added a FAST LSXR Intake with a Big Mouth Throttle Body
to build upon the impressive power.
This Camaro fools the competition by packing
a 620 HP LSX454 engine under the hood.
20
LS Performance
While original plans called for a 200R4
automatic transmission to replace the
apparent factory 350TH currently in
the car, a total redirection was ultimately made, inserting a Tremec TKO
six-speed after it was determined that
the original fitment was for a 4-speed
manual transmission. To ensure pos-
itive tire engagement, a heavy-duty
clutch plus a strong and lightweight
driveshaft were installed to control
the massive horsepower and torque.
To improve the drivability of the car,
Westech engineered a throttle-by-cable fuel injection system over the more
common throttle-by-wire controls
typically found with this engine. The
spark plug coil packs were mounted
by the oil pan to keep all wiring out of
view and the plumbing was contained
with stainless steel tubing, making for
a super clean engine compartment.
But it was clear to both Norm and
Jim at Westech, along with Carl, that
the car had to stop and handle as
well as a new Camaro. Happy with
the modifications made to modernize
the power and throttle response, they
turned to the suspension.
To get the right handling and chassis
strength, they called on Heidts Hot
Rods and Muscle Cars of Lake Zurich,
Illinois, to achieve those key features.
In the rear they installed a Heidts
four-link suspension — two inches
narrower than stock — to accommo-
Taking a peak at the Heidts four-link
suspension and drivetrain.
date the increased width wheels and
tires they had planned.
Up front, they used the Heidts Pro-G
subframe featuring rack-and-pinion
steering for crisp cornering and excellent steering response. Massive diameter Wilwood disc brake rotors accompanied with six-piston front and
four-piston rear calipers netted better
than a modern car stopping power.
Finishing off the Camaro, Norm and
Jim attended to some of the spots on
the paint needing touch-up but for the
most part left the exterior as it arrived.
To that they added SS-style graphics
and the original 350 c.i. engine emblems to fool the competition as to
the amazing power under the hood.
The result is a car that checks all the
boxes with regards to modern Camaro
performance while wrapped in one of
the best Camaro shapes ever to leave a
GM assembly line.
Ask Carl about his ’69 Camaro now.
Westech Automotive  262.889.4346
Heidts Automotive  800.841.8188
Fo
LS Performance
Springs
According to COMP Cams, proper selection of the valve
spring begins with identifying the application and selecting all of the valve train components necessary to achieve
the engine builders’ goals. Selection of the wrong spring
is one of the most common causes of engine failure.
Other common causes are the incorrect installation and
improper handling of the springs. Check out the LS spring
offerings from COMP Cams on the following pages.
Beehive
Beehive
Valve Spring Kits
•Kits designed for hydraulic roller
cams include carefully matched
Beehive Springs, retainers, locks,
seals and spring seats
•Available with chromemoly steel or
tool steel retainers
•.600" Maximum lift for kits including Part #26915 valve springs
•.625" Maximum lift for kits including
Part #26918 valve springs
•Starting at $334.88, depending on
spring & retainer selection
Conical
Dual
Select Retainers
774-16
Select Valve Springs
26915
26918
1772-16
Part #26915
Components
Beehive Valve Springs
Steel Retainers
7В° Steel Valve Locks
Valve Seals
Spring Seats
Component Part #s
26915-16
774-16
623-16
511-16
4705-16
Kit Part #
All Kits include
511-16
26915CS-KIT
Part #26918
Components
Beehive Valve Springs
Steel Retainers
7В° Steel Valve Locks
Valve Seals
Spring Seats
Beehive Valve Springs
Lightweight Tool Steel Retainers
7В° Steel Valve Locks
Valve Seals
Spring Seats
22
Component Part #s
26918-16
774-16
623-16
511-16
4705-16
26918-16
1772-16
623-16
511-16
4705-16
LS Performance
Kit Part #
26918CS-KIT
4705-16
26918TS-KIT
623-16
orward
Select Valve Springs
Dual Valve Spring Kits
•Dual valve spring kits designed for hydraulic roller and some
solid roller camshafts
•Include springs, retainers, locks, seals and spring seats
•Kits available with tool steel or titanium retainers
•.660" Maximum lift for kits including Part #26925 valve springs
•.675" Maximum lift for kits including Part #26926 valve springs
•Starting at $436.17, depending on spring & retainer selection
26925
26926
Select Retainers
1717-16
1779-16
779-16
Part #26925
All Kits Include
Components
Street/Strip Dual Valve Springs
Lightweight Tool Steel Retainers
7В° Steel Valve Locks
Valve Seals
Spring Seats
4695-16
Component Part #s
26925-16
1717-16
623-16
511-16
4695-16
Kit Part #
26925TS-KIT
Part #26926
511-16
623-16
Components
Street/Strip Dual Valve Springs
Lightweight Tool Steel Retainers
7В° Steel Valve Locks
Valve Seals
Spring Seats
Street/Strip Dual Valve Springs
Titanium Retainers
7В° Steel Valve Locks
Valve Seals
Spring Seats
Component Part #s
26926-16
1779-16
623-16
511-16
4695-16
26926-16
779-16
623-16
511-16
4695-16
Kit Part #
26926TS-KIT
26926TI-KIT
compperformancegroup.com
23
Conical Valve Springs
Expected to become the new standard in
high performance valve spring design,
COMP Cams Conical Valve Springs utilize
a round wire and feature a diameter and
progressive pitch driven natural frequency. The conical shape constantly decreases diameter from the bottom to top to
reduce active mass and decrease applied
forces, which results in longer valve train
component life and less parasitic horsepower loss. This design also increases the
valve train RPM limit while reducing resonance concerns and decreasing dynamic spring oscillations. It dampens without
wear, heat/friction or risk from interference contact. The result is longer spring
life and the ability to run more aggressive
camshafts. Superfinish surface processing also increases both lift capability and
spring longevity.
Select Retainers
Valve Spring
774-16
7228
•Designed for hydraulic roller and some
solid roller camshafts
•Include matched valve springs, retainers, locks, seals and spring seats
•Available with either chromemoly steel
or tool steel retainers
•.630" Maximum lift
•Starting at $384.63, depending on retainer selection
1772-16
All Kits Include
4680-16
511-16
623-16
Part #7228
Components
Conical Valve Springs
Steel Retainers
7В° Steel Valve Locks
Valve Seals
Spring Seats
24
Part #7228
Component Part #s
7228-16
774-16
623-16
511-16
4680-16
LS Performance
Kit Part #
7228CS-KIT
Components
Conical Valve Springs
Tool Steel Retainers
7В° Steel Valve Locks
Valve Seals
Spring Seats
Component Part #s
7228-16
1772-16
623-16
511-16
4680-16
Kit Part #
7228TS-KIT
TIMING
IT RIGHT
Cam Phaser Limiter Kits (Patent 8,291,876 B2)
Cam phasers are computer-controlled cam gears that automatically optimize cam timing based on current engine
RPM and are used in 2007+ GM Gen IV VVT (Variable
Valve Timing) engines. Engine oil is pressure-fed to the
phasers through passageways in the cylinder heads and
cams. The engine computers control solenoids that adjust
this oil flow throughout the phasers’ control chambers, creating the ability to retard the cams.
wide range of valve timing movement, there is very little
piston-to-valve clearance, which limits you to small cam
profiles with little overlap. COMP Cams Cam Phaser
Limiter Kits restrict the range of cam timing movement
to 22В°, thereby providing the necessary valve clearance
for serious performance cams with tighter lobe separations – all while utilizing the benefits of VVT technology. Starting at $64.22.
While this technology provides fuel efficiency and the
ability to always be in the best position for maximum
power, regardless of engine RPM, it presents some limits when it comes to performance cams. With such a
Description
GM Gen IV 2007-08 VVT
GM Gen IV 2009-Present VVT
Part #
5456
5460
Timing Set Accessories from COMP Cams
B
Billet Belt
Tensioners
These bolt-on Billet LS Belt Tensioners
are a fully adjustable solution for
controlling potentially damaging resonance and maintaining desired belt
tension. Starting at $160.63.
Available for either standard or long snout (LS7)
crankshafts, the covers easily fit double roller timing
chains and high pressure/
volume oil pumps. Sold
with gasket and crank seal;
no modifications needed.
Starting at $257.44.
A
Description
A. Billet GM LS Belt Tensioners  Billet GM LS1/LS2/LS3/LS6/LS7 Adjustable Belt Tensioner w/ Idler Pully Passenger Cars
Billet GM LS Belt Tensioners  Billet GM LS1 Adjustable Belt Tensioner, 1998-02 F-Body
B. LS Front Cover  GM LS1/LS2/LS3/LS6
LS Front Cover  GM LS7
1 Will not work in truck engines.
Front Covers
Part #
540211, 2
54025
5496
5497
2 If used with 2010+ Camaros, belt must be changed. Use Gates Part #K060827.
compperformancegroup.com
25
B
A
C
Adjustable Timing Sets
COMP Cams Adjustable Timing Sets for LS Applications feature durable, induction hardened steel billet gears feature a 3 keyway crank sprocket for additional 4-degree incremental adjustability and 6-degree maximum advance/retard.
The pre-stretched, heat-treated double roller timing chain with heavy-duty
large pin design includes Torrington roller thrust bearing for reduced friction.
Ideal for all street performance and race applications. Starting at $180.77.
Keyway Adjustable Billet Timing Sets
These timing sets from COMP Cams feature induction hardened and precision machined steel billet gears for bulletproof durability in GM LSX
applications. Featuring a 9 keyway crank sprocket for 2-degree incremental adjustability and 8-degree maximum advance/retard, the pre-stretched,
heat-treated double roller timing chain with heavy-duty large pin design
includes Torrington roller thrust bearing for reduced friction. Ideal for all
street performance and race applications. Ranging from $127.69.
Timing Sets
for RHS/LSX
Raised Cam Blocks
Timing Sets for RHS/LSX Raised Cam
Blocks are engineered for use with
cam blocks raised .388" above stock.
Each timing set includes a premium
chain with unmatched strength and
durability for extreme race applications. Available in a wide variety of
options from COMP Cams, including
3 keyway, 9 keyway or Hex Adjust;
1 or 4 pole reluctors; and 1- or 3-bolt
cam cores. Starting at $207.48, based
on configuration.
Description
A. Adjustable Timing Set  GM LSX Single Chain Hex Adjust Type for 3 Bolt Cam, 1 Pole Reluctor (24x)
Adjustable Timing Set  GM LSX Single Chain Hex Adjust Type for 3 Bolt Cam, 4 Pole Reluctor (58x)
Adjustable Timing Set  GM LS7 Single Chain Hex Adjust Type for 3 Bolt Cam, 4 Pole Reluctor (58x)
B. Keyway Adjustable Billet Timing Set  GM LSX (58x) Single Chain 9 Keyway (Single-Bolt Gear, 4 Pole Reluctor)
Keyway Adjustable Billet Timing Set  GM Gen III LS2 (Early Model w/ 24 Tooth Reluctor Only)
Keyway Adjustable Billet Timing Set  GM LS2 (Single-Bolt)
Keyway Adjustable Billet Timing Set  GM LS3 (58x) 9 Keyway (Three-Bolt Gear, 4 Pole Reluctor)
Timing Sets for RHS/LSX Raised Cam Block  GM LS Single Chain Hex Adjust Type for 3-Bolt Cam, 1 Pole Reluctor (24x)
Timing Sets for RHS/LSX Raised Cam Block  GM LS Single Chain Hex Adjust Type for 3-Bolt Cam, 4 Pole Reluctor (58x)
Timing Sets for RHS/LSX Raised Cam Block  GM LS Single Chain 3 Keyway for 1-Bolt Cam, 4 Pole Reluctor (58x)
Timing Sets for RHS/LSX Raised Cam Block  GM LS Single Chain 3 Keyway for 3-Bolt Cam, 1 Pole Reluctor (24x)
C. Timing Sets for RHS/LSX Raised Cam Block  GM LS Single Chain 3 Keyway for 3-Bolt Cam, 4 Pole Reluctor (58x)
Timing Sets for RHS/LSX Raised Cam Block  GM LS Single Chain 9 Keyway for 1-Bolt Cam, 4 Pole Reluctor (58x)
Timing Sets for RHS/LSX Raised Cam Block  GM LS Single Chain 9 Keyway for 3-Bolt Cam, 1 Pole Reluctor (24x)
Timing Sets for RHS/LSX Raised Cam Block  GM LS Single Chain 9 Keyway for 3-Bolt Cam, 4 Pole Reluctor (58x)
Timing Sets for RHS/LSX Raised Cam Block  GM LS Double Chain Hex Adjust Type for 3-Bolt Cam, 1 Pole Reluctor (24x)
Timing Sets for RHS/LSX Raised Cam Block  GM LS Double Chain 3 Keyway for 3-Bolt Cam, 1 Pole Reluctor (24x)
Timing Sets for RHS/LSX Raised Cam Block  GM LS7 Single Chain Hex Adjust Type for 3-Bolt Cam, 4-Pole Reluctor (58x), One-Piece Oil Cog w/ Gear
Timing Sets for RHS/LSX Raised Cam Block  GM LS7 Single Chain 3-Keyway for 3-Bolt Cam, 4-Pole Reluctor (58x)
26
LS Performance
Part #
3158KT
3172KT
3167KT
7107
7102
7105
7106
9158KT
9172KT
9673T3
9658T3
9672T3
9673T9
9658T9
9672T9
3173KT
3154
9167KT
9667T3
1LE
FranZ’s
RED HOT
A 2013 Camaro 1LE With Mods
To Make Sure It Lights Up
The Competition
Story & Photos By
ChevyHardcore.com
In 2013, Chevrolet released the 1LE package for Camaros.
This package was an upgrade from the SS package that
offered an affordable alternative with many of the ZL1’s
upgrades, but didn’t have the supercharger bolted to the
motor. Many aspects made the transition though, such as
the blacked out hood, upgraded suspension and suede
appointed interior.
Our shop can get extremely backed up with project cars,
so having a local shop that specializes in late-model GMs
is a valuable asset. When it comes to GM cars, our partner
to help with the work load is Cunningham Motorsports, in
Murrieta, CA. CMS specializes in tuning and tweaking GM
cars. One day when we were at CMS, we noticed a brand
new, shiny red Camaro SS 1LE sitting out front and had to
know what the story was behind the car.
Ryne Cunningham the owner of Cunningham Motorsports, said the Camaro was his personal ride. We chatted
with him about the car, but not much else was said about
it. However, over the course of a year we noticed that
the Camaro was receiving upgrades. CMS had to put their
touches on the car to make sure that the Camaro reached
its full potential.
Acquiring The 1LE
We asked Ryne what caught his eye about the 1LE Camaro,
besides the bright red paint. “For me it was the price point.
I was able to get an SS Camaro, with a ton of upgrades for
a great price.” His plans were to take the car to the occasional road race, but mainly drive it daily. The plan was
never to leave the Camaro in stock form though.
compperformancegroup.com
27
Starting Modifications
Showing what CMS was capable of, they started by installing a
set of American Racing headers to help free up some horsepower. These headers are 100% American made from stainless steel.
According to their website, just bolting on these headers will
provide an extra 32 WHP, without a tune.
From there he ordered up one of his own custom ground COMP
Cams. These cams are specifically ground to CMS specifications.
With this cam, the motor has a nice lope to it but is still street
able and tame. Being a proprietary CMS product, Ryne wouldn’t
give us the exact specs. After the new bump stick was installed,
a cold air Airaid intake was installed.
After all these modifications were complete, the car was thrown
on the dyno to see what it could do. What Ryne walked away with
was an impressive 432 lb. ft. of torque and 472 HP, at the wheels.
Suspension Upgrades
Turning his attention from the engine, Ryne looked at the suspension. Even though this car had the upgraded 1LE suspension, he knew there was more potential in the Camaro to make
the car handle flawlessly on the track. What he did was replace
the stock sway bars for a set of high performance Pfadt sway
bars in the front and rear to keep the car planted.
While he was tinkering with the suspension, a set of Pfadt drop
springs were thrown in to get the stance on the car just right
and lower the center of gravity. In the rear, a set of Pfadt cradle
bushings were added as well, to keep the rear end in the right
spot and prevent any driveline vibrations.
Now that the car had the right stance, a new set of wheels
was in order to finish off the menacing look of the car. Cunningham called Forgeline to get a set of wheels for the car.
In the front he opted for a set of 20×10.5" GA3’s and a set of
20Г—11.5" for the rear. The GA3 wheels are worth noting as
well as these aren’t just a fancy set of wheels. Forgeline used
all of their racing knowledge to produce this street version of
their race GA3R wheel. They are made from 6061-T3 aluminum with heat-treated rim shells and assembled with stainless
steel hardware. The “I-Beam” technology reduces weight in
the wheel but provides extra strength.
With custom finishes available from Forgeline, Cunningham
picked a gloss black hoop with contrasting flat black spokes for
a dramatic look. They are wrapped in a sticky set of BF Goodwrich Rivals, 285/35/R20 in the front and 315/30/R20 in the
rear to keep the car stuck to the ground like glue.
28
LS Performance
This car not only catches the eye, but
backs it up with 472 HP under the hood.
1LE Upgrades Over SS
1LE package is offered on 1SS and 2SS coupe models
Exclusive Tremec TR6060MM6 6-speed manual transmission with a standard air-to-liquid cooling system
3.91 geared limited slip differential
Exclusive monotube rear dampers
27mm solid front stabilizer bar
28mm solid rear stabilizer bar
Higher-capacity rear-axle half shafts
Strut tower brace
ZL1-based 20 x 10-inch front and 20 x 10-inch aluminum
wheels
285/35ZR20 Goodyear Eagle Supercar G:2 tires front and
rear (identical to the front tires for ZL1)
ZL1 wheel bearings
Toe links and rear shock mounts
ZL1 high-capacity fuel pump and additional fuel pickups
Matte black hood
Black front splitter and rear spoiler
10-spoke ZL1-based wheels
ZL1’s flat-bottom steering wheel trimmed in sueded microfiber
Short-throw shifter from the ZL1 trimmed in sueded microfiber
Testing The Limits
Once all the mods had been done, Ryne wanted to
really test the car out. “I took the car on a half mile
airport strip and did 147 mph, hitting the rev limiter.”
That just tells us the car has more in it for a higher
speed, but the car wasn’t built for that. “I also took the
car to Big Willow Springs, where I ran the course in
1:34.4,” he added. Big Willow, in Rosamond, CA, is a
2.5 mile road course located two and a half hours north
of Cunningham Motorsports. Looking at the Big Willow
track records, we see Mario Andretti holds the record at
1:06.050 seconds in an Indy Car. Cunningham’s record
is pretty impressive for a car three times the size and
weight of the track record holder.
Selling The 1LE
As is the case with many gearheads, when the car was
“finished” Ryne got bored with it with only 7,200 miles
on the odometer. He decided to sell off the car to help
finance the next project. We asked him what happened
to his red hot ride and he pointed to his right-hand man
in the shop, Mike Franz. When Ryne decided that he was
ready for that next project, he started asking around if
anybody was interested in the 1LE. Mike raised his hand
saying he would love to buy the car. A deal was struck
and the car now resides with Mike.
New Ownership
Mike is a Chevy man through and through. This 1LE Camaro is actually the fifth Camaro he has owned. “I grew
up in a Chevy family, so I was raised around Chevys” he
explained. After test driving a Dodge Challenger and Ford
Mustang, Mike knew the Camaro was the car he wanted.
“For me these 5th Gen Camaros were the fastest, most
comfortable, with a back seat and in my price range.”
We asked Mike what he really loved about the car. “I’m
the bully at the stoplight” he said laughing. “I have a car
that catches eyes but has the power to back it up.”
Even though he’s not a big fan of red cars, something just
drew Mike to this particular Camaro. “I was just drawn to
the red on this car, plus I’m the one that turned all the
wrenches on this Camaro at CMS, so I knew it well.” Since
all the upgrades had been done with the car, Mike said
he hasn’t really made any major modifications to the car
since it’s been in his possession.
The few modifications that Mike did to help make the car
his own was to add a pair of ten-inch Rockford Fosgate subwoofers in the trunk for a little bass. Since he also worked at
CMS, he couldn’t just leave the car alone. He figured out how
to control the two stage mufflers with a remote control. Now
he can push a button and go from stealth mode to race mode
and back again. A neat little trick to have in your pocket, especially if the police are sitting behind you at a light.
Future Plans
We noticed that Mike really babies this car when cruising
around. Being big gearheads we would want to constantly
mash the throttle. “This car is my daily driver that I rely
on to get to work and back, so I try to not beat it up too
much,” he said. He does have plans to take it down the
drag strip to see what the car can do though. “I don’t really
want to take it on a road course because that beats up cars
pretty good, and I still have to make it to work on Monday.”
When talking about the car, Mike has nothing but a huge
smile on his face. He said that he drives the car everywhere,
in any weather. There’s nothing wrong with daily driving a
super car, except trying to keep your foot off the gas.
Cunningham Motorsports  951.677.0716
compperformancegroup.com
29
Selecting
The Best
EFI
SYSTEM
For LS COntrol
Tough Decisions  A lot of factors come into play when
choosing an EFI system – what kind of horsepower are
you making, do you have previous EFI experience, do
you mind using a laptop or is a hand-held unit preferred, do you want to custom tune or prefer a system
that tunes itself, do you have a naturally aspirated or
boosted application, do you want data logging, do you
need specific application wiring? And this isn't even
the entire list!
Picking Your System  By starting here and answering
these basic questions, and then reading about the
LS EFI systems available from FAST, you should be able
to easily select a system that's perfect for you.
Here to Help  Still not sure? No problem. Call FAST toll
free at 1.877.334.8355В or email tech@fuelairspark.com.
A certified EFI specialist can help you select the appropriate system for your LS application.
Kit Includes
EZ-EFI 2.0 LS Self Tuning Engine Control Kit
FAST engineers have developed the simplest plug-andplay, self tuning engine control system on the market
for LS engines. The FAST EZ-EFI 2.0 LS Self Tuning
Engine Control Kit is the easiest way to get your LS
transplant up and running without all the complex PCM
flashing and harness reworking required with the stock
unit. No laptop or tuning experience is required.
This kit features all of the advantages of the award-winning EZ-EFI 2.0 system, plus it includes the EZ-LS Ignition
30
LS Performance
ECU
Color Touchscreen
Hand-Held Unit w/ Mount
Fully Mesh-Wrapped
Main Harness
Wide-Band O2 Sensor
Electronic Fuel Pressure Kit
EZ-LS Ignition Control Unit
& Harness
Controller and utilizes stock or aftermarket LS injectors,
sensors and coils. With the included FAST EZ-LS Ignition
Controller, the user can easily get running or optionally
adjust timing. This multi-port installation kit is compatible
will all LS-based car and truck engines and is designed
and engineered by FAST. Starting at $1,660.96.
Description
EZ-EFI 2.0 LS Self Tuning Engine Control Kit
Part #
30405-KIT
Kit Includes
Waterproof ECU
Bosch Wide-Band O2 Sensor
Mesh-Wrapped
Multi-Port Wiring Harness
Fuel Pressure Sensor Kit
C-COM Software
Color Touchscreen Hand-Held
Unit w/ Mount (XFI e-Dash)
XFI Sportsman
This is a bank-to-bank, fully software-tunable EFI setup designed for
muscle car, late model street and
sportsman drag racing engines, along
with boosted and individual runner
throttle body applications.
It requires a laptop for tuning and
features FAST C-COM software, which
comes packaged along with the necessary USB connectivity cable. A user-configurable auxiliary input channel is included, as well. The system
also offers both load-indexed Speed
Density and Alpha-N fuel strategies.
The FAST XFI Sportsman System features full tables to monitor fueling,
acceleration fuel, timing and air/
fuel targets, while full function data
logging is also included. It supports
both naturally aspirated and boosted
applications up to 5 bar, is compatible
with wet nitrous and has nitrous timing retard control.
Compatible with return-style and returnless fuel systems, XFI Sportsman
is designed for use with high-impedance injectors and works with a variety of multi-port systems. It is conveniently configurable to work with
EZ-LS and the XIM for LS coil pack
ignition control. Starting at $1,959.97.
Description
XFI Sportsman
Part #
303005
EFI Crate/
Transplant Engine
Management Kits
For owners of fuel injected crate/
transplant engines, FAST presents
a solution to allow easy conversion
to aftermarket EFI for GM LS engines. Kits are tailored to perfectly
match the specific brand and model of crate engine being converted.
Starting at $2,542.40.
Description
For GM LS1/LS6
For GM LS2 – 2005 Only
For GM LS2/LS3/LS7 – 2006 & Newer
Kits*
3010091
301010
301011
1 Does not include throttle body.
* Kit contents may vary by application. Call for specific kit contents.
Kit Includes
XFI 2.0 EFI System
XIM Ignition Module
Cable-Driven 92mm Throttle
Body*
Air Temperature Sensor
Wide-Band 02 Sensor
Necessary Plug & Play Wiring
compperformancegroup.com
31
A New
XFI specifically
2.0 EFI
for
Kit your LS Engine
XFI 2.0 EFI Kits
Kit Includes
FAST also offers plug-and-play XFI 2.0 EFI Kits to allow you to upgrade the fuel
injection system on your LS engine and includes features such as: fully sequential
EFI with an individual cylinder correction option, wide-band 02 sensor, boost control,
progressive dry or wet nitrous control with up to 4 stages, trans-brake creep control,
an advanced self tuning option and internal data logging that records comprehensive
data from engine sensors.
It also includes the popular C-COM software that is easy-to-navigate and contains the
advanced features demanded by professionals, yet allows first-time EFI users to tune
with confidence. XFI 2.0 includes all of the wiring necessary to upgrade and allows
use of OEM LS sensors and components. A laptop is required. Starting at $2,675.22.
Description
Naturally Aspirated
Boosted
32
LS Performance
Part #
301050
301051
ECU w/ Internal Data
Logging
NTK Wide-Band O2 Sensor
All Necessary Harnesses
EZ-LS Ignition Controller Kit
(see page 33)
Air Temperature Sensor
MAP Sensor
C-COM Software
FAST EFI Components
GM EZ-LS
Ignition Controller Kit
Easiest way to handle LS coil-near-plug ignition
control for FAST electronic fuel injection systems
With simplified wiring and tuning flexibility, the
FAST GM EZ-LS Ignition Controller Kit delivers low
cost and proven ignition control for any LS engine
swap utilizing a variety of FAST EFI setups, including EZ-EFI 2.0, XFI 2.0 and XFI Sportsman.
The kit utilizes a simplified plug-and-play wiring harness and a compact, waterproof ECU enclosure. In addition, this kit was engineered to utilize stock LS crank
and cam sensors. Four LED lights indicate that the
controller is powered up and receiving signals. The
kit offers a quick setup option that doesn’t require
tuning or a laptop. However, it can be custom tuned
via the FAST EZ-EFI 2.0 hand-held (when hooked up
to an EZ-EFI 2.0 ECU) or XFI C-Com software connected to an XFI system.
It works with all 1997-Current GM coil-near-plug
ignition systems and both 24x/58x tooth reluctor
wheels. Not compatible with finned-truck LS coils.
Starting at $411.95.
Description
GM EZ-LS Ignition Controller Kit
Part #
301312E
* Must be used with FAST EZ-EFI 2.0, XFI 2.0 or XFI Sportsman.
XIM Ignition Controller
The FAST XIM Ignition Module lets you easily install the EZEFI 2.0, XFI 2.0 and XFI Sportsman on LS distributor-less ignition type EFI engines. It’s a simple plug-and-play installation
with factory type connectors that plug into your factory sensors.
Also available are standalone ignition modules for coil-per-cylinder carb applications or the original EZ-EFI that enable programmble control of the late model coil-per-cylinder ignition
systems, independent of the fuel delivery method or any factory
computer. Not compatible with finned-truck LS coils. Connector
kit starting at $106.04, XIM kits starting at $619.80, standalone units
starting at $679.73.
Description
GM LS1/LS6 XIM Kit w/ Harness
GM LS2/LS3/LS7 XIM Kit w/ Harness
GM LS1/LS2/LS3/LS6/LS7 XIM Connector Kit
Kits*
301311
301312
301311K
Standalone**
3013112
3013122
—
* For use with EZ-EFI 2.0, XFI 2.0 or XFI Sportsman.
**For use with original EZ-EFI or carbureted applications.
1 Connector kits consist of connectors, terminals & seals only – no wires.
compperformancegroup.com
33
FAST LSX Intake Manifolds
ONE
to let your
BESTLs Breathe?
Which
IS
FAST offers three series of an innovative intake manifold
engineered from a composite polymer material: the LSX,
LSXR and LSXRT. But how do you know which is the best
choice for your LS application?
Below is a list of common features found in all LSX/
LSXR/LSXRT intakes offered by FAST. On the following
pages, see each series' specific features to know which is
the right choice for you.
Polymer Material  Advanced polymer composite material
LS Port Identification
Raised
Rectangle Port
LS7
LSXR
resists heat sink effect of aluminum.
Improved Design  Lighter weight, increased strength and
improved heat dissipating characteristics over aftermarket aluminum intakes.
▲ Use
Part #146202
Modular Design  Allows for easy porting if builder desires.
No Modifications Necessary  Perfect bolt-on fit allows use
Rectangle Port
Cathedral Port
LS3
LS9
L76
L92
L99
LSA
LSXR
LS1
LS2
LS6
LSXR
LSXRT
▲ Use
Part #146102
▲ Use
Part #146302
or Part #146602
of engine accessories with no modifications necessary.
Performance Gains  Maintains performance gains achieved
over stock intakes with no loss in drivability or low RPM
torque.
Integrated Features  Improved throttle body sealing flange
with o-ring gasket; integrated nitrous bungs.
Includes  Ships with stainless steel bolts, threaded insert
throttle body mounts and necessary mounting hardware.
34
LS Performance
ON THE WEB
To see full descriptions of these intake manifolds and other
FAST products, visit FuelAirSpark.com.
C
A
B
LSX 92mm Black
Intake Manifold
Patent No. 7,021,263 B1
For use with GM Gen III (LS1,
-2 & -6) cathedral port engine.
Three-piece design allows for easy
disassembly and porting if desired.
Designed to work with the FAST
Big Mouth or Big Mouth LT 92mm
Throttle Body. Available for both
street and racing applications.
The LSX 92mm Intake Manifold
uses FAST Billet Fuel Rails (Part
#54023) and either a Big Mouth
Throttle Body (Part #54092) or
Big Mouth LT Throttle Body (Part
#54090). Starting at $978.50.
LSXR 102mm
Intake Manifold
LSXRT 102mm
Intake Manifold
50-State Legal CARB EO #D-279-8
50-State Legal CARB EO #D-279-8
Built for rectangular port GM LS3/
LS7 and cathedral port LS1/LS2/
LS6 engines. Modular design with
removable intake runners allows
for easy disassembly and porting. 102mm air inlet suited to Big
Mouth 102mm Throttle body, can
be used with OEM or aftermarket
90mm–102mm throttle bodies.
Testing on an LS7 engine produced
gains of 16+ HP and testing on a
500c.i. engine produced 26+ RWHP.
Starting at $983.39.
Designed specifically for GM
4.8/5.3/6.0L cathedral port truck engines and cathedral port LS1, -2, -6
race applications where hood clearance is not a concern. Runner design
is longer and less restrictive and
gives the user the ability to remove
individual runners from the manifold
for modification. Modular design
allows for easy porting and disassembly while runner design yields an
incredible 25 peak horsepower gain
over the stock intake1. 102mm inlet
works w/ OEM electronic 78/90mm
or aftermarket 90mm–102mm throttle
bodies for high flow and minimal restriction (threebolt electronic throttle
bodies require an adapter)2. Big gains
in rear-wheel HP yet retains factory
fitments and underhood clearance
requirements. Starting at $1,032.68.
Description
A. LSX 92mm Black Intake Manifold
B. LSXR 102mm Intake Manifold  See Diagram on Page 34.
LSXR 102mm Intake Manifold  See Diagram on Page 34.
LSXR 102mm Intake Manifold  See Diagram on Page 34.
C. LSXRT 102mm Intake Manifold
Part #
54039B
146102
146202
146302
146602
1 On a stock 6.0L engine with a Big Mouth 102mm
Throttle Body.
2 Some GM truck models may require the FAST 92mm
or 102mm throttle body.
compperformancegroup.com
35
FAST LSX Intake Accessories
Choosing the Right Accessories for Your FAST LSXR Intake
Having trouble determining which FAST Intake Manifold
is the right one for your application? The diagram below
can help. Find your LS application in one of the application boxes below and follow the lines to determine the
proper intake manifold part number, along with fuel rail
options and other required and optional accessory pieces. Please refer to these diagrams as some parts are REQUIRED with the installation of a FAST Intake Manifold.
LSXR 102mm Intake Manifold (Rectangle, Raised Rectangle & Cathedral Port)
Application
LS3
L99
L76
LS7
Intake
LSXR
#146102
LSXR
#146202
Fuel Rail
Use OEM Fuel Rails
Use FAST Billet Fuel Rail Kit
Must Use One of Two
REQUIRED Fuel Rail Kits
Use FAST OEM LS2-Style Fuel Rail Kit
LS1
LSXR
LS6
#146302
Use FAST Billet Fuel Rail Kit
LSXR
Use OEM Fuel Rails
LS2
#146302
Use FAST Billet Fuel Rail Kit
LSXRT 102mm Intake Manifold (Cathedral Port)
Application
1999-02
GM Truck/SUV
w/ 3-Bolt Cable
Throttle Body
2002-2007
GM Truck/SUV w/
3-Bolt Electronic
Throttle Body
2007-2010
GM Truck/SUV w/
4-Bolt Electronic
Throttle Body
1
2
3
4
36
Intake
LSXRT
#146602
LSXRT
#146602
LSXRT
#146602
Requires injector lower o-ring swap (included w/ manifold).
Except Corvette, call FAST for recommendations.
Except 1997-1998 Corvettes.
Permanent modification to OEM fuel rail required.
LS Performance
Fuel Rail
Use OEM Fuel Rails (Round Plastic)
Use FAST Billet Fuel Rail Kit
Use OEM Fuel Rails (Round Plastic)
Use FAST Billet Fuel Rail Kit
Use OEM Fuel Rails (Square Metal)
Use FAST Billet Fuel Rail Kit
5 For use w/ OEM GM Truck/SUV injectors & FAST LS2 Injectors.
6 For use with FAST LS2 injectors.
7Requires injector lower o-ring swap when using OEM injectors
(included with manifold).
8 Excludes '06 Trailblazer SS, some cowl modifications required.
Use part #146031-KIT.
9 Requires GM Purge Solenoid #12581282 (not sold by FAST).
*LSXR applications must use OEM injector length.
LSXR 102mm Intake Manifold (Rectangle, Raised Rectangle & Cathedral Port)
Fuel Rail Kit
Throttle Body
FAST Fuel Injector Spacer Kit #146025-KIT
FAST Billet Fuel Rail Kit #146027-KIT
FAST Billet Fuel Rail Kit #146027-KIT
FAST OEM-Style Fuel Rail Kit #146020-KIT
FAST OEM-Style Fuel Rail Kit #146021-KIT1,3
FAST Billet Fuel Rail Kit #146032-KIT1
OEM Electronic 90mm
FAST 102mm Big Mouth
Throttle Body #541022
FAST 92mm Big Mouth
Throttle Body #540922
FAST 92mm Big Mouth LT
Throttle Body #540902
Nothing Required
OEM Electronic 90mm
FAST Billet Fuel Rail Kit #146033-KIT
LSXRT 102mm Intake Manifold (Cathedral Port)
Throttle
Adapter Plate
Fuel Rail Kit
#146030-KIT4,5,7
No
#146028-KIT
6,7
Throttle Body
FAST 92mm Big Mouth
Throttle Body #540929
FAST 92mm Big Mouth LT
Throttle Body #540909
#146030-KIT4,5,7,8
Yes
#146029-KIT
#146028-KIT6,7
FAST 102mm Big Mouth
Throttle Body #541029
OEM Electronic
#146031-KIT4,5,7
No
OEM Electronic
#146028-KIT
6,7
compperformancegroup.com
37
54095
A
B
C
D
54102
E
54091
Big Mouth Throttle Bodies
These throttle bodies from FAST not only offer an enlarged
throttle opening but also an increased throttle blade thickness
to eliminate deflection. A smoother operating offset blade pivot improves throttle response, and a beefed up linkage and
dual throttle spring mechanism ensure total throttle control.
Constructed from billet aluminum, the FAST Big Mouth 92mm
Throttle Body will deliver bolt-on GM Gen III (LS1, -2 & -6)
horsepower, while the 102mm version is designed to maximize
performance upgrades on all Gen III and Gen IV engines with
cable driven throttle bodies.
Also available for LS applications are Big Mouth LT Throttle
Bodies, a newer and improved version of the original Big
Mouth Throttle Body. With a 92mm throttle bore, each one
features black-wrinkle powder coating and all of the same features as the original. All Big Mouth Throttle Bodies are for
LS 4-bolt applications or those equipped wth LSX/LSXR Intake
Manifolds. Throttle bodies start at $365.63.
A.
B.
C.
D.
E.
Description
Big Mouth  92mm Throttle Body
Big Mouth  102mm Throttle Body
Big Mouth LT  92mm LT Throttle Body
Sensors  Throttle Position Sensor (TPS)
Sensors  Idle Air Control Solenoid (IAC)
38
LS Performance
with
TPS & IAC
54095
54103
54091
without
TPS & IAC
54092
54102
54090
54020
307059
LSX/LSXR/LSXRT
Fuel Rails
FAST LSX/LSXR/LSXRT Fuel Rails feature a larger
internal diameter that dampens the pulses and
provides increased fuel volume, ensuring that
your injectors never run dry. In addition, they
yield better fuel distribution and ultimately greater horsepower. Starting at $196.94.
Description
LSX LS1 Fuel Rail Kit w/ Fittings,
O-Rings & Hardware
LSX LS1 Fuel Rails w/o Fittings
LSXR LS1/LS6 Billet Fuel Rail Kit
LSXR OEM-Style LS2 Fuel Rail Kit For
LS1/LS6 (Non-Billet)
LSXR LS2 Billet Fuel Rail Kit
LSXR OEM-Style LS3/LS7 Fuel Rail Kit
(Non-Billet)
LSXR LS3/LS7 Billet Fuel Rail Kit
LSXRT Gen III Billet Fuel Rail Kit
Red
Black
54023
146035B-KIT
54023HDW
—
146032-KIT 146032B-KIT
146021-KIT
—
146033-KIT 146033B-KIT
146020-KIT
—
146027-KIT 146027B-KIT
146028-KIT1 146028B-KIT 1
*LSX/LSXR/LSXRT parts are NOT interchangeable.
1 For use with OEM GM Truck/SUV injectors & FAST LS2 injectors.
Precision-Flow
Fuel Injectors
.551"
(Outside To Outside)
LS3/LS7/L76/L92/L99 Type
LS2 Type
.551"
(Outside To Outside)
USCAR
USCAR
.551"
(Outside To Outside)
2.078" (Center To Center)
Minitimer
Type
Connector
1.480" (Center To Center)
Available in two different height configurations and a wide range of flow rates,
the injectors are correctly sized (shorter
than common LS1/LS6 injectors) and
feature the correct EV6/USCAR connector, enabling a hassle-free plug-in
operation. Prices vary according to size.
.551"
(Outside To Outside)
2.550" (Center To Center)
FAST offers Precision-Flow Fuel Injectors specifically for GM Gen IV engines
that are the highest flowing injectors
available for these applications and are
uniquely designed for direct installation into LS2 and LS3/LS7/L76/L92/
L99-style engines.
.580"
(Outside To Outside)
.580"
(Outside To Outside)
How To Choose Your
Precision-Flow Fuel Injectors
1.Take your target peak horsepower and multiply by
••.5 for naturally aspirated
••.6 for supercharged
••.625 for turbocharged
2.Take that figure and divide by the number of cylinders.
3.Divide by .9 (for 90% duty cycle).
This will give you the lb./hr. you will need from each injector.
Example: 520 horsepower, naturally aspirated V8
(520 x .5=260), (260/8=32.5), (32.5/.9=36)
This application would require 36 lb./hr. Precision-Flow Fuel Injectors (Part #303600).
If the formula gives you a number that is not one of the injector sizes, the general rule is
to move up to the next largest size.
Description
Fuel Injector
Adapter Harnesses
& Connector Kits
FAST Fuel Injector Adapter Harnesses
and Connector Kits enable easy retro-fitting of both new and old style electronic fuel injectors. New style fuel injectors
can be used on vehicles equipped with
older-style minitimer connectors.
Retro-fitting a minitimer injector into a
USCAR harness is also possible with a
different adapter harness. Connector kits,
complete with terminals, seals and plugs,
are available as well, allowing direct
re-termination of existing harnesses with
the correct connectors, either Minitimer
or USCAR. Starting at $3.90 for single units.
Part #
Fuel Injectors, Mintimer Connector1 Style
36 lb./hr. (378cc/min) High-Impedance Single Injector
60 lb./hr. (630cc/min) High-Impedance Single Injector
220 lb./hr Low-Impedance Single Injector2
303600
306000
30355-1
Fuel Injectors, USCAR Connector3 Style
LS2-Type 33 lb./hr. (346.5cc/min) High-Impedance Single Injector
LS2-Type 46 lb./hr. (483cc/min) High-Impedance Single Injector
LS2-Type 57 lb./hr. (598.5cc/min) High-Impedance Single Injector
LS2-Type 85 lb./hr. (892.5cc/min) High-Impedance Single Injector
LS3/LS7/L76/L92/L99-Type 39 lb./hr. (409.5cc/min) High-Impedance Single Injector
LS3/LS7/L76/L92/L99-Type 50 lb./hr. (525cc/min) High-Impedance Single Injector
LS3/LS7/L76/L92/L99-Type 65 lb./hr. (682.5cc/min) High-Impedance Single Injector
LS3/LS7/L76/L92/L99-Type 85 lb./hr. (892.5cc/min) High-Impedance Single Injector
30332-1
30462-1
30572-1
30859-1
30397-1
30507-1
30657-1
30857-1
Adapter Harnesses & Connector Kits
Minitimer Type Connector Kit
USCAR Type Connector Kit
Minitimer To USCAR Type Adapter
USCAR To Minitimer Type Adapter
1 All injectors flow rated at 43.5 psi/3 Bar.
2 Low-impedance injectors cannot be used with
OEM computers.
170599-1
170600-1
170603-1
170604-1
3 All Injectors flow rated at 58 psi (Stock OE LS operating
pressure).
* All units available in quantities of (8).
compperformancegroup.com
39
45+ Years & Still
Moving Forward
tciВ® Has Been a Leader in performance torque converter
technology Since 1968 and We’re Not Done yet.
Standard Features
• Furnace-Brazed Fins For Stall Consistency
• Heat-Treated Sprag Races & Steel Hub
• HDT Coating™ Improves Heat Dissipation
• Computer Balanced To Strict Tolerances
• Heat-Treated Steel Turbine Spline For
Greatly Improved Durability
• Additional Bearings Increase Thrust Load
Capacity & Reduce Drag
• 100% Tested & Triple Quality Inspected
Nobody Knows LS Torque Converters Better
Each TCIВ® converter is custom designed for your specific application by real drivetrain
engineers and built with pride by the most highly trained builders in the industry.
Street/Strip
TCIВ® Street Rodderв„ў, Saturday Night SpecialВ®, BreakawayВ®, StreetFighterВ® and Super StreetFighterв„ў Torque Converter series are available for popular LS and street
rod and street/strip applications. Whether it’s a late model lock-up converter or a
conventional converter, TCIВ® has the technology and experience to get maximum
performance from them all.
Drag race
With 10" and 11" Drag Race Converters available, TCIВ® carries custom designed
converters for various LS horsepower levels and drivetrain setups. TCIВ® has consistently produced more champions and race winners over the last 45 years than any
other performance drivetrain company.
Heavy-Duty
The TCIВ® Maximizerв„ў Towing & Street Torque Converter is engineered with the
strongest parts available. Built to deliver increased low-end muscle and better fuel
mileage while also providing an unmatched level of durability for extreme LS usage.
Yes, We Can Do That!
Need something special? TCIВ® will
gladly custom engineer and build
a torque converter for your exact
needs. We provide this service to
our customers without extra charges and in most cases we can have it
at your doorstep in a matter of days.
To discuss your application, simply
call the knowledgeable TCIВ® tech
support team and they’ll help you
find the perfect converter for your
performance needs.
9120j
Monday-Friday 7:00 a.m.-6:00 p.m. CST
TCIВ® Automotive
151 Industrial Dr, Ashland, MS 38608
www.TCIAuTo.CoM
TRANSHELPв„ў 1.888.776.9824
Torque
Converters, INC.
Performance enthusiasts often underestimate the
critical role torque converters play in putting their
expensive horsepower to the pavement.
TCI converters are designed by experienced
drivetrain engineers to provide a significant
increase in performance on the street or at
the strip. With a more efficient stall speed,
faster acceleration and better mid-range
power, your machine will get the rear wheel
power it deserves.
Some special features of TCI torque converters include furnace-brazed fins for reinforcement and durability as well as heat-treated
sprag races for increased strength and life
Tech NOTES
Triple Testing
span. They also utilize bearings that increase
thrust capacity and reduce drag, as well
as turbine spline reinforcement welds for
increased durability and a heat-treated steel
hub that increases converter strength.
TCI employs a highly specialized production process that ensures each unit is built
to spec. Regardless of the category or price
level in which a TCI torque converters falls,
rest assured that it has been Triple Tested
during assembly.
Torque Converters Explained
Impeller Pump  The impeller pump is the outside half of the converter on the transmission side of the weld line. Inside the impeller pump is a series of longitudinal fins that drive
the fluid around the outside diameter into the turbine because this component is welded
to the cover, which is bolted to the flexplate. The size of the torque converter (and pump)
and the number and shape of the fins all affect the characteristics of the converter. If long
torque converter life is an objective, it is extremely important that the fins of the impeller
pump are adequately reinforced against fatigue and the outside housing does not distort
under stress.
Stator  The stator can be described as the “brain” of the torque converter, although it is not
the sole determiner of converter function and characteristics. The stator, which changes fluid
flow between the turbine and pump, is what makes a torque converter a converter (multiplier) and not strictly a fluid coupler. With the stator removed a converter will retain none of its
torque multiplying effect.
Turbine  The turbine rides within the cover and is attached to the drivetrain via a spline fit
to the input shaft of the transmission. When the turbine moves, the car moves.
Cover  The cover (also referred to as the front) is the outside half of the housing that
faces toward the engine side from the weld line. The cover serves to attach the converter
to the flexplate (engine) and contains the fluid. While the cover is not actively involved in
the characteristics of performance, it is important that the cover remain rigid under stress
(torsional and thrust stress as well as the tremendous hydraulic pressure generated by the
torque converter internally).
TCI employs a highly specialized
production process that involves
ensuring that each unit is built to
spec. Regardless of the category
or price level in which a TCI torque
converters falls, you can rest
assured that it has been Triple
Tested during assembly.
Once all prep work on the component parts has been completed,
the impeller is welded to the front
cover. Immediately following this
process, a pair of dial indicators
is employed on a rotating table
to verify that the impeller body
and pump drive hub remain true.
Each unit is then pressurized and
subjected to a leak test to confirm
the integrity of all weld seams.
Last, each unit is computer
balanced to reduce annoying and
potentially damaging drivetrain
vibrations that can occur from
an unbalanced torque converter.
That's triple tested so you can be
confident you are receiving the
perfect torque converter for your
specific application.
ON THE WEB
To see find more information on
TCI’s Triple Testing procedures,
head over to TCIAUTO.COM.
compperformancegroup.com
41
TCI Torque Converter Series
Street Rodder
Starting at
$289.69
•• 300-400 RPM increase in stall over stock
•• Improves drivability and offers smooth in-gear idle without adversely affecting gas mileage
•• Improved low end power and smoother running in stock
or mildly modified engines
breakaway
Starting at
$451.91
Saturday Night Special
Starting at
$418.44
•• 400-500 RPM increase in stall over stock
•• Quicker acceleration and improved low end power to run
more smoothly
•• Fully streetable with no modifications required
•• Great choice for show cars and street rods
Frequently Asked Questions
About TCI Torque Converters
With an automatic transmission, a torque converter is chosen
by its stall speed. Select a torque converter with a stall speed
300 to 400 RPM higher than the peak torque output of your
engine if you are using a transbrake. Below are some other
frequently asked questions about torque converter stall.
What is stall speed?
Stall speed is the RPM that a given torque converter (impeller)
must spin in order for it to overcome a given amount of load
and begin moving the turbine.
What are the differences between flash stall and brake stall?
Flash stall is the true stall of a torque converter. Brake stall, or
“foot brake stall,” is the RPM that occurs when the engine overrides the brake system, and the car begins to “push” forward.
•• 1000+ RPM increase in stall over stock
•• Efficient at highway cruising speeds and harder launches at wide-open throttle
•• Bolt-in with no modifications required
•• Designed for moderately modified street machines and
weekend racers used as daily drivers
42
LS Performance
Which one is the more effective measurement of the two?
Brake stall is NOT an accurate way to properly check the stall
because there are too many variables that affect it. When
measuring the stall of your torque converter, the flash stall will
always be the more effective option of the two.
ON THE WEB
To see full descriptions of these torque converters,
visit TCIAuto.com.
Starting at
$603.84
Streetfighter
Super Streetfighter
Starting at
$642.46
•• Up to 1500 RPM increase in stall over stock1
•• Higher RPM launches and quicker reaction times
•• Better low- and mid-range power
•• Radically prepared street machines (performance cams,
aftermarket carbs, higher compression ratios)
•• 2000+ RPM stall speed over stock1
•• Higher RPM launches and lower ETs
•• Better low- and mid-range power
•• Increased torque multiplication and higher stall speeds
•• Built for extreme high performance applications
1 Flexplate must be drilled for 7/16" bolts
1 Flexplate must be drilled for 7/16" bolts
Street Torque Converter Stall Speeds
Torque Converter Series
Street Rodder
Saturday Night Special
Breakaway
StreetFighter
Super StreetFighter
Advertised Cam Duration
Stock to 260В°
Stock to 265В°
265В° to 280В°
280В° to 300В°
280В° to 310В°
Application
1997-05 4L60E C5 Corvette
1998-02 4L60E F-Body LS1/LS2 Applications;
1999-06 4L60E/4L65E Trucks w/ 4.8, 5.3, 6.0 Engines
2005 & Later 4L65E C6 Corvette
1991-06 4L80E
2006-12 6L80
* All converters listed are lock-up.
1 LS1/LS2 applications, 1998 & later
except Corvette.
Engine Characteristics
Smooth Idle
Smooth Idle
Smooth to Fair Idle
Smooth to Rough Idle
Smooth to Rough Idle
Expected RPM Stall Speeds
1900 to 2000
2000 to 2100
2200 to 2400
3100 to 3400
3500 to 3800
Saturday Night
Special
242700
Breakaway
StreetFighter
Street Rodder
242738
11"
10"
10"
2428003
—
2429351, 2
242938
—
—
—
243110
2429327,
2429398
—
—
—
2429484
—
242972
243105
2429315,
2429374
242975
2429404
2429424, 6
242974
—
2 300mm Diameter converter.
3 12" Diameter converter
4 Billet/forged steel front.
5 With heavy-duty front anti-ballooning plate
for nitrous applications.
6 Multi-clutch lockup.
Super StreetFighter
2429414
242976
7 Ballooning plate on trans-side.
8 4000 stall.
* All torque converter pricing varies, depending on application.
Visit CompPerformanceGroup.com for information regarding all companies and
products featured in this catalog.
compperformancegroup.com
43
PERFORM YOUR OWN
STALL CHANGES AT HOME
Furnace Brazed Fins
Provide Increased Strength
Bolt-Together Front Cover
Allows For Easy Stall Changes
& Service Of Frictions
& Bearings By User
Bolt-Together
Torque Converters
Built specifically for the punishing enviroments
of high horsepower LS engines.
TCI engineers have developed a complete line of
bolt-together converters for the 4L60E and 6L80
transmissions from GM. These converters feature an
increase in stall speed over stock options, thereby
increasing torque multiplication and allowing the
engine to get into its powerband sooner. The result
is improved vehicle launch and overall performance.
They are designed for extreme power, easy stall
speed changes and consistent performance.
High Torque Capacity
Triple Disc Lock-Up Clutch
Features Race-Quality
Friction Material
Billet Cover For
Ultimate Durability
Benefits include a triple-disc clutch with significantly higher torque capacity and much higher
clamping force than a single-disc design, while
they also have the ability to fully lock-up under wide open throttle so there is little or no
high-gear slippage. These converters are can be
used in many high horsepower and modified vehicles when a single-disc converter simply won’t
withstand the power. Featured along with the
high torque capacity, triple-disc, woven carbon
fiber friction lock-up clutch is a 50-spline clutch
hub, meaning the horsepower capacity of this
converter is second to none. And thanks to the
bolt-together design, stall changes and service
of frictions and bearings can be performed at
home. Starting at $921.82, depending on application
and stall speed.
*The race version of the 6L80 requires a custom tuned TCU/PCM, but the street
version does not require tuning.
Description
GM LS 4L60E
GM LS 4L60E
GM LS 4L60E
GM LS 4L60E
Street Multi-Clutch 
Street Multi-Clutch 
Street Multi-Clutch 
Race Multi-Clutch 
Race Multi-Clutch 
Race Multi-Clutch 
Race Multi-Clutch 
GM LS 6L80
GM LS 6L80
GM LS 6L80
GM LS 6L80
GM LS 6L80
GM LS 6L80
GM LS 6L80
1 This is a custom order piece – select your preferred stall
speed or ask TCI for a recommendation.
44
LS Performance
Stall (RPM)
2800-2900
3200-3300
3600-3700
4100-4200
2600-2700
2800-2900
3100-3200
Custom*
2600-2700
2800-2900
3100-3200
* Anywhere from 2600-4600.
HDT Coating Prevents
Corrosion & Dissipates Heat
Part #
242991
242992
242993
242994
242972
242974
242976
24297R1
242972R
242974R
242976R
4L60E Applications
1998-2002 4L60E F-Body LS1 Engines
1999-2006 4L60E/4L65E Trucks
w/ 4.8L, 5.3L or 6.0L Engines
2004-2005 Pontiac GTOs
6L80 Applications
Camaro (All V8, 6L80/6L90)
Pontiac G8 (All V8, 6L80/6L90)
Cadillac CTS-V (All V8, 6L80/6L90)
Silverado/Sierra (All V8, 6L80/6L90
Applications)
}
Specialty Torque
Converters
10" Drag Race Torque Converter
TCI 10" Drag Race Torque
Converters can be run in
applications making up to 750
horsepower and are most commonly used for a bracket race
or street/strip applications that
leans more toward the “strip.”
Stall speed is 4500 RPM. All
TCI race converters incorporate
aftermarket high-load sprags,
furnace-brazed and reinforced
fins, needle bearings and hardened steel pump hubs.
Three sets of Torrington
bearings replace normal thrust
washers used in OEM and
some aftermarket converters to
triple the thrust capacity capabilities, and ballooning plates
double the strength of the
converter when using transbrake and/or power adders.
Finally, a 360В° steel mounting
ring strengthens the mounting
area of the converter to the
flexplate. Starting at $810.33
Maximizer
Towing
Converter
The fuel-efficient TCI Maximizer Towing Converter is designed to reduce the slippage
found in all non lock-up torque
converters. The Maximizer
Series enables transmissions to
run cooler and reduces engine
RPM at highway speeds. In
addition to the resulting fuel
mileage increases, the Maximizer Towing Converter also
lowers transmission temperature by as much as 20В°F. This
is an excellent choice for motor
homes, tow vehicles and other
heavy load applications. Stall
speeds range from 1000 to
1200 RPM. Starting at $538.89.
Description
10" Drag Race  1998 & Later 4L60E, LS1/LS2
Maximizer  1999 & Later 4L60E/4L65E Trucks w/ 4.8L, 5.3L, 6.0L Engines
1 Approximately 4500 RPM stall speed.
2 300mm Diameter converter.
Part #
2429331
2429362
Converters BuilT
for a Wide Variety
of Applications
Package Includes
Transmission
Universal Transmission
Cooler
Max Shiftв„ў Transmission
Fluid
Dipstick (when applicable)
Universal TV Cable (when applicable)
StreetFighter Transmission Packages
These LS transmission packages are designed to withstand the rigors of street machines making up to 775 HP
with a non-supercharged system using pump gasoline.
Equipped with a TCI manual/automatic valve body, most
units allow you to manually shift the vehicle into each
gear or to keep it fully automatic. This gives you racetrack
Application
Engine
LS-Style Truck
LS-Style Truck
LS-Style Truck
LS-Style Truck
Chevrolet V8
2000-06 4L60E
2000-06 4L60E
2000-06 4L60E
2000-06 4L60E
1997-06 4L80E
1 Will plug directly in OEM ECU.
shifts and shaves time off your ETs. Special clutches and
bands increase durability while new sprags/roller clutches increase holding capacity. An improved lubrication
system increases the amount of fluid sent to planetaries
and internals. Finally, higher line pressure provides extra
firm shifts and greater torque capacity with less slippage.
Starting at $3,856.10.
Package
371016P2
371016P3
371016P4
371016P5
271100P1
Transmission
3710161,2
3710161,2
3710161,2
3710161,2
2711002
Converter
242938
2429313
2429323
2429334
242910
2Requires TCI EZ-TCU or factory ECU to oper- 3With heavy-duty front anti-ballooning plate
ate the transmission & torque converter funcfor nitrous applications.
tions when used with pre-1993 applications.
Miscellaneous
743865 (Dipstick)
743865 (Dipstick)
743865 (Dipstick)
743865 (Dipstick)
743865 (Dipstick)
4 Approximately 4500 RPM stall speed.
6x Six-Speed Transmission Packages
An innovative automatic transmission for GM LS Pro
Touring, street and all-out race vehicles. The 4L80Ebased TCI 6x Six-Speed Automatic Transmission is a
fully programmable transmission with six forward gears
(2.97, 2.23, 1.57, 1.18, 1.00, 0.75) for quicker acceleration and increased fuel economy at cruising speeds and
is capable of handling up to 850 HP.
Application
GM 6x Transmission Package
GM 6x Transmission Package w/ Paddle Shifter
GM 6x Transmission Package w/ Outlaw Shifter
Transmission
EZ-TCU Transmission Controller
Wiring Harness
Transmission Cooler
Dipstick
Transmission Fluid
Shifter (Optional)
Bellhousing Kit (Optional)
LS Performance
*TCI EZ-TCU Transmission Controller & 4-speed automatic shifter (ratchet, gate or stock)
needed for standard automatic operation.
Package Transmission Shifter
271600P2
271600
—
271600P
271600
301441
271600P3
271600
611641
Package Includes
46
When used with the required EZ-TCU Transmission Controller and harness for shift point programming and the optional Paddle Shifter or Outlaw 2-Button Shifter set-up for
manual mode gear selection, this automatic transmission*
gives vehicles the most functional and modern drivetrain
combination on the market. Starting at $6,828.19.
EZ-TCU Transmission
Controller & Harness
302820
382820
302820
Dipstick
743805
743805
743805
Cooler
824104
824104
824104
NOTE: Torque Converters Must Be Ordered
Separately Based On Your Application’s
Stall Speed Requirements.
Max Shift
Transmission Fluid
950600
950600
950600
GM LS
THE BEST
Transmissions
Building on the best the OE has to offer, these
upgraded aftermarket transmissions from TCI
are stronger, more durable and race ready!
StreetFighter
TCI StreetFighter Transmissions for GM LS
applications are designed to withstand the
rigors of street machines ranging anywhere
from 400 to 725 horsepower. Equipped
with a TCI manual/automatic valve body,
most units allow you to manually shift the
vehicle into each gear change or, by placing it in the drive position, to keep it fully
automatic. This gives you racetrack shifts
and shaves time off your ETs. Starting at
$2,609.76, depending on application.
HDT Coating
Developments in thermal coating,
technology combined with an
exhaustive R&D effort by the TCI
engineering team, have delivered
a revolutionary breakthrough in
torque converter and transmission
performance and durability.
Beyond just providing these TCI
parts with the metallic gray color
for which they have become so
well known, HDT Coating – Heat
Dissipating Technology – enables TCI
torque converters and transmissions
to operate at lower temperatures
and cool down faster.
Super StreetFighter
TCI Super StreetFighter Transmissions for
GM LS applications bridge the gap between
the StreetFighter series and full competition
transmissions. They are intended for vehicles powered by engines producing up to
825 HP. Featuring some of the same benefits
as StreetFighter Transmissions but with certain upgrades, the Super StreetFighter offers
both manual and automatic shift options
to give you the power and shifts you want
for the strip or easy driving for the street.
Upgrades include extreme performance
clutches and nitrided steel plates, larger
diameter servos, enhanced hard parts and
an improved lubrication system. Starting at
$3,668.45.
A
Description
4L60E/4L65E/700R4  2000-06 4L60E
A. 4L60E/4L65E/700R4  1998-02 4L60E
4L80E/4L85E  1997-06 4L80E
1 Will plug directly in OEM ECU.
Engine
LS-Style Truck4
LS1/LS2 F-Body5
Chevrolet V8
2 Requires TCI EZ-TCU or factory ECU to operate
the transmission & torque converter functions
when used with pre-1993 applications.
StreetFighter
3710161, 2 (725 HP)
—
2711002, 3 (775 HP)
3Factory ECU required to operate transmission.
Super StreetFighter
—
3711501, 2 (825 HP)
—
4 4.8L, 5.3L, 6.0L liter engines.
5 F-body Camaro & Firebird.
compperformancegroup.com
47
6x Six-Speed
Transmission
TCI has developed an innovative
automatic transmission for
GM LS Pro Touring, street
and all-out race vehicles.
The 4L80E-based TCI 6x SixSpeed Automatic Transmission is
a fully programmable transmission that gives you six forward
gears (2.97, 2.23, 1.57, 1.18, 1.00,
0.75) for quicker acceleration
and increased fuel economy at
cruising speeds and is capable of
handling up to 850 horsepower.
Packages available on page 46.
Starting at $6,179.63.
*TCI EZ-TCU Transmission Controller & 4-speed automatic shifter (ratchet, gate or stock) needed for standard automatic operation
Description
With GM Bellhousing
Without Bellhousing
With 300M Input Shaft
Part #
2716001
2716011
2716021
1 Must be used with TCI EZ-TCU.
Machined Flexplates
These aftermarket machined flywheels
are .140" thick and built to handle
even the toughest applications.
Constructed from A514 Blanchard
ground steel and neutral balanced with 168-tooth starter
rings. These machined
flexplates from TCI are
a “must have” for moderate to serious LS performance applications.
Starting at $277.07.
Chevrolet
GM
GM
Engine Size
4.8L, 5.3L, 5.7L, 6.0L LS-Series
4.8L, 5.3L, 5.7L, 6.0L LS-Series
SFI 29.1
Approved
Y
Y
Balance
Internal
Internal
GM
6.2L LS9-Series
Y
Internal
GM
6.2L LSA-Series
Y
Internal
GM
4.8L, 5.3L, 5.7L, 6.0L LS-Series
Y
Internal
Transmission Type
1 Will not fit 4L80E transmissions.
48
LS Performance
2A TCI Special Build Torque Converter must
be used in order to fit 4L80E transmissions.
Remarks
Small Bolt Pattern, 168-Tooth
Wide Bolt Pattern (11.5"), 168-Tooth
LS Bolt Pattern (11.1") & GM Small Bolt Pattern
10 3/4", 168-Tooth
LS Bolt Pattern (11.1") & GM Small Bolt Pattern
10 3/4", 168-Tooth
Small Bolt Pattern, 168-Tooth
Part #
3997531
399754
3997552
3997562
3997571
LS
Transmission Control
EZ-TCU Transmission Controller
For GM LS computer controlled transmissions, nothing
beats the EZ-TCU Transmission Controller from TCI for
maximum electronic control over shift points, shift firmness and shift speed.
is completely intuitive. It is capable of real-time switchable
calibrations, which allows for multiple setups. Run one calibration on the way to the track, and then, with the push of
a button, have a more aggressive setup ready for the race.
Power data logging and self diagnostics allow users of every
skill level to fully utilize the unit. Simply install it, and then
answer the simple Setup Wizard questions on the handheld unit. No software, laptop or experience is needed.
Multiple shift modes include full manual mode. Compatible with GM transmissions, including: 4L60E, 4L65E,
4L70E, 4L80E, & 4L85E, as well as the TCI 6x Six-Speed.
Starting at $634.32.
The EZ-TCU is fully configured and ready to run – no
tuning is necessary. But for those who demand customization, it is also optionally fully programmable based on
load, speed and RPM. The EZ-TCU programming interface
Description
EZ-TCU Transmission Controller
2009+ 4L65E/70E Transmissions
Shift Boss Transmission Programmer
Available for performance GM 4L60E, 4L65E, 4L70E, 4L80E,
4L85E applications, the TCI Shift Boss ensures desired shift
firmness while monitoring the two most critical drivetrain
functions – temperature and transmission line pressure*.
The Shift Boss features three unique shift mode choices –
Stock for OEM shift characteristics, Stage 1 for firm solid
shifts and Stage 2 for race shifts. You can monitor transmission temperature or pressure* by simply pressing the display button. This hand-held unit includes a digital screen
Part #
302820
30299-KIT
NOTE: Not a transmission
controller, MUST be used
with a factory ECM.
with selection options for transmission temperature, shift
psi* and all three shift modes. The Shift Boss is sold as
an individual unit or as a package that includes the additional pressure switch. Starting at $141.63.
* Additional sensor required
Description
Base Kit
Base Kit w/ Additional Pressure Sensor
Optional Pressure Sensor Only
Part #
377550
377560
377551
compperformancegroup.com
49
TCI Drivetrain Accessories
New, not
rebuilt
Racing Starter
This part is designed for drag racing and applications where
a smaller and lighter weight starter is desired. Manufactured by Hitachi for TCI, this starter is one-third smaller than
most OEM units, to increase room for headers and oil pan,
plus increase ground clearance.
Full ball bearing construction means less internal friction
and more torque transferred to the engine while balanced
armatures encapsulated in high-temperature epoxy resist
heat and vibration. A heavy-duty solenoid utilizes a contact
disc instead of a bar-type contact for more consistent starts.
An amperage draw of 210-250 amps at full starting load
provides increased spark for ignition. Starting at $289.69.
Application
Starter Type
All Chevy LS Engines 168-Tooth
Permanent Magnet Racing Starter
Weight
7.5 lbs., 50% Lighter than OE
Horsepower
1.74 Horsepower
Gear Reduction 6 to 1
Applications
Up to 11.0:1 Compression
Bearings
Heavy-Duty Pinion Bearing
Indexing
12 Clocking Solenoid Positions
Technology
Latest Technology
Notes
Feather Light Permanent Magnet Motor, 12 Clocking Positions, Only 7.5 lbs.,
Small Size Works Well in Cars with Headers
Part #
351110
RollStop
When installed in-line with a vehicle’s front brakes, the TCI RollStop
allows you to do a burnout like the
professionals. Simply pump up
the brake, apply the RollStop and
release the brake pedal, and the
front wheels will remain locked. The
RollStop can be installed without
brake system modifications and
includes a precision micro-switch
that releases the front brake and
can be installed anywhere in the
car. Starting at $142.86.
Description
For 1998-2002 F-Body
For 2010 & Up Camaro
Part #
861728
861735
Max Shift
Transmission Fluid
Add shift quality, performance and
durability to any automatic transmission
by simply pouring in TCI Max Shift (ATF)
Transmission Fluid. Proven to resist
viscosity breakdown in even the most
demanding race and street applications.
Created using ultra-pure base oils
from top specialty refineries, Max Shift
includes friction eliminating, anti-foaming and extreme heat additives and
requires absolutely no other additives
or treatments.
Performance Specs: Dexron II, II-E,
III-G, III-H, VI or Ford Mercon & Mercon
V. Single quart starting at $9.32.
Size
1 Qt.
(12) 1 Qt. Bottles
50
LS Performance
Part #
950655
950650
The Same Race Clutch Design That
Dominates Pro-Level Road Racing
But With A Street-Optimized Pedal Feel
10.4" Two-Disc LS Clutch
Quarter MasterВ® has incorporated cutting-edge race clutch technology to create the ultimate street performance clutch for GM LS-powered vehicles. The new Optimum-SRв„ў
10.4" Two-Disc LS Clutch delivers a comparable-to-stock pedal feel but is capable of
handling 1400 horsepower and 1000 ft.-lbs. of torque.
• 10.4" two-disc lightweight design; holds 1400 horsepower &
1,000 ft.-lbs. of torque
• All billet construction, proprietary spring technology & 100%
rebuildable design
• Comparable-to-stock pedal feel
without compromising torque
holding capacity or durability
• Vented floater plate & grooved friction surfaces provide enhanced
cooling & longevity
Available for the LS-powered C5 & C6 (Base/Z06/ZR1) Chevrolet Corvette, 2010 & Newer Chevrolet Camaro, 2008-2010 Pontiac G8/GXP and 2009 & Newer Cadillac CTS-V.
#MadeInUSA
Billet Bearing Retainers For LS
Clutch Slave Cylinders
These high-strength steel bearing retainers are direct replacements for the stock plastic units which
are prone to deflect and misalign the retainer/slave
snout, causing wear and failure. Designed for late
model LS applications including the C6 Corvette,
Gen V Camaro, Cadillac CTS-V and Pontiac G8.
Tech & Sales: 1.888.258.8241
quartermasterusa.com
9222j
Your LS Has Incredible Power Potential.
Unleash It With New Cylinder Head Technology.
Pro Eliteв„ў LS7 CNC Cylinder Heads
Once again, RHSВ® has redefined the performance expectations of LS engines with new bolt-on rectangle port cylinder heads
for street/race vehicles. The Pro Eliteв„ў LS7 Cylinder Heads are high performance 12В° LS-style heads that feature .220" raised
intake runners for enhanced straight line of sight airflow to the cylinder, yet they retain fitment with stock and aftermarket LS7
intakes and valve train setups. Other design features include CNC-machined runners, .750" thick deck surface, reinforced
rocker arm rails, improved clamping with a 6-bolt design (also works with 4-bolt) and enhanced flow water jackets. Available
bare or fully assembled with premium COMP CamsВ® valve train components, these heads are compatible with
OEM GM LS blocks, GM LSX blocks and RHSВ® LS Race Blocks.
Application
Stock or modified GM LS 5.7-6.0L blocks,
even fits 3.900" bore
Hardcore street/race engines with
moderately large cubic inches
Larger cubic inch, boosted race &
454-502c.i. street engines
P-Port version of #54503
(unfinished runners, no valve job)
P-Port version of #54501
(unfinished runners, no valve job)
Bare Head
Part #
54503
Runner Chamber
Size
Size
266cc
Spark
Plugs
66cc
Valve Size
In.
Ex.
2.100"
1.575"
(8mm)
(8mm)
1.615"
(8mm)
Angle
Angle
54501
291cc
69cc
2.200"
(8mm)
54504
307cc
69cc
2.250"
(5/16")
1.615"
(8mm)
Angle
54502
-
-
-
-
Angle
54500
-
-
-
Angle
Now Available For
3.900" Stock Bore 5.7-6.0L Engines
RACINGHEADSERVICE.Com • 1.877.776.4323
9330j
*Available fully assembled with COMP CamsВ® valve train parts and choice of
Titanium, Tool Steel or Steel valve spring retainers.
Ballgame
A Whole New
Another Randy Johnson Knows
How To Cut Down the Competition
He isn’t the former Major League
Baseball pitcher known for 100-mph
fastballs, but this particular Randy
Johnson can still bring the heat in
his second-gen Camaro.
Randy Johnson is certainly familiar
with second generation F-body Camaros. Owner of D & Z Customs in
Kewaskum, Wisconsin, Randy had
been a regular in the winner’s circle
for years, making this generation of
Camaro more popular with autocross
and road racing fans at every turn.
Randy already had experience building a successful second gen Camaro
that taught him plenty about how to
build a hot corner-turning machine.
He had even collected an assortment
of trophies with this Camaro in its
orange color scheme so he decided it
was time to make a color change and
step up his game.
Randy’s green machine is powered
by a 680 HP Wegner Automotive LS7
outfit with Wiseco 11:1 compression pistons linked to Callies connecting rods and crankshaft. COMP
pushrods, roller lifters and a custom
ground camshaft are hidden under
the RHS LS7 cylinder heads and
FAST 102mm LSXR intake manifold.
Photos by Robert McGaffin
McGaffin Digital Photography
To keep the fuel flowing, Randy installed FAST 52 lb./hr. injectors and
a GM ZL1 fuel pump. The LS7 features a Dailey Engineering dry-sump
oiling system and a Peterson Fluid
Systems 10-quart tank. Two-row radiator hands and a C&R Racing oil
cooler further engine cooling. Stainless Works handles the exhaust system and delivers what has to be labeled as an “angry” exhaust note.
Up front Randy installed the Heidts
Pro-G suspension that included the
Heidts prototype cantilever suspension system bolstered by RideTech
triple-adjustable shocks. To get the
680 HP Wegner Automotive LS7 featuring a
FAST LSXR 102mm intake.
correct ride height, Heidts Pro-G
2" drop spindles and tubular lower
A-Arms were bolted in place. In the
rear, Randy kept it Heidts-pure, including a new Heidts Pro-G independent rear suspension. Added to that
elaborate IRS suspension system, he
used RideTech springs and, again, triple-adjustable coil-over shocks.
Handling the intense and repetitive
braking Randy would encounter in
racing situations, he installed massive Wilwood W6A six-piston calipers and 14" GT slotted rotors to the
front Heidts suspension. In the rear,
Wilwood Dyna-Pro four-piston calipers to clamp down on the 10.25"
diameter rotors – both front and rear
systems proving more than capable
to stop the awesome green Camaro.
To hold tight to the track surface, Nitto NT05 tires measuring 295/35-18 in
the front and 335/30-19 in the rear
are wrapped around powder coated
black outer hoop with gunmetal grey
centered (and center-locking) Forgeline DE3C wheels (18 x 10 front and
19 x 12 rear). An often overlooked
handling bonus is the RideTech fivepoint seat harness that mounts to the
RideTech tiger cage, significantly increasing the structure of the car and
further aiding corner carving.
Watch for Randy to take this slick
green machine to the winner’s circle
in autocross and street racing series.
compperformancegroup.com
53
Technology
Hits THe
Streets
Race Winning Clutch
Street Performance Reaps Rewards From
Quarter Master Race Engineered Clutch Design
The popular adage with car companies of the early 1970s
was “what wins on Sunday, sells on Monday.” Trans Am racing
competitions of the day helped Camaro and Mustang become
the popular brands they are today.
Quarter Master brings race-winning clutch technology to the
street with Optimum-SR 10.4" LS Clutch Kits. The clutches deliver a comparable-to-stock pedal feel and are capable of handling
700-1400 HP and 500-1000 ft./lbs. of torque*.
The same holds true with clutches. Race-winning clutches have
far more credibility with consumers looking for in-the-fieldproven parts to make their drivetrains strong and durable.
With lessons learned from racing and with data from extensive
drivability testing, Optimum-SR LS Clutches feature a race
capable design now available for street use.
*Horsepower and torque figures vary based on single or two-disc application
Optimum-SR 10.4"
Single-Disc LS Clutch Kits
Kit Includes
Clutch
Flywheel
Release Bearings
Release Bearing Adapter
Those looking for a true racing clutch with factory driving characteristics will find Quarter Master
Optimum-SR 10.4" Single-Disc LS Clutch Kits ideal.
(if applicable)
This kit’s lighter weight (50% lighter than the stock
assembly) creates a reduced MOI (Moment Of Inertia), allowing the engine to rev and de-rev quicker
than a stock OE unit.
All these features knock seconds off the stopwatch,
while delivering a stock pedal feel and chatter-free
operation to serve as a heavy-duty stock replacement.
Holding up to 500 ft./lbs. of torque and 700 horsepower, the kit includes the clutch, flywheel, release
bearing and release bearing adapter*.
The single-disc clutch boasts billet construction and
is 100% rebuildable. Additionally, the unit is constructed with proprietary spring technology and is
compatible with OE-type hydraulic bearings or the
Quarter Master Tri-Lite II Hydraulic Systems. It is legal in both the Pirelli World Challenge & Continental
Tire Series but can easily be used for street driving.
Starting at $2,210.36.
* If applicable.
54
LS Performance
Application
Corvette C5
Corvette C6
Corvette C6 Z06
Camaro SS
Pontiac G8 GT/GXP
Model
1997-2004
2005-2013
2006-2013
2010-Up
2008-2009
Part #
QMI-541002
QMI-541001
QMI-541001
QMI-541003
QMI-541001
Optimum-SR 10.4"
Two-Disc LS Clutch Kits
Quarter Master also offers a two-disc version
of the Optimum-SR 10.4" LS Clutch Kit.
The kits have achieved standout results with
the Camaro in the Continental Tire Sports Car
Challenge Series, including a first and second-place sweep at the Indianapolis Motor
Speedway. Now, with lessons learned from
racing, and with the data from extensive
drivability testing, Optimum-SR Two-Disc LS
Clutch Kits are available for street use.
Both the race and street versions feature
a spring designed to require only a 10% increase in pedal effort over stock, with stocktype modulation control. The clutches are capable of handling 1400 horsepower and 1000
ft./lbs. of torque. The street version features
sprung hub, marcel-type discs with organic
rag-type friction for smooth engagement.
A vented floater plate and grooved friction surfaces provide better cooling, as well. Featuring aircraft grade bolts and hardware with an
all-billet construction, each clutch is completely
rebuildable and can be used with OE hydraulic bearing systems or Quarter Master Tri-Lite II
Hydraulic Release Bearings. Starting at $2,722.15.
Application
Corvette C5
Corvette C6
Corvette C6 Z06
Corvette C6 ZR1
Camaro SS
Pontiac G8 GT/GXP
Model
1997-2004
2005-2013
2006-2013
2009-2014
2010-2014
2008-2009
Part #
QMI-542003
QMI-542001
QMI-542001
QMI-542002
QMI-542004
QMI-542005
Kit Includes
Clutch
Flywheel
Release Bearings
Release Bearing Adapter
(if applicable)
A
B
FEATURES:
C
D
A
Cover Assembly
B
Pressure Plate
C
Disc, Spring, SI, Trans Side 1-5/32
D
Floater Plate (Assembly)
E
Disc, Spring, SI, Engine Side 1-5/32 x 26
F
Flywheel
E
F
compperformancegroup.com
55
KING
of LS Blocks
The RHS block, designed for radical street and all-out racing
applications, is a proven foundation for building real LS performance.
Going beyond the limitations of other GM LS blocks, the
RHS LS Race Block is available in both standard (9.240")
and tall (9.750") deck height combinations and is engineered for maximum clearance around a 4.600" stroke
crankshaft. This was done by raising the camshaft centerline (.388"/9.86mm) and including priority main oiling that
shifts the oil galley outboard. With this unique design, RHS
engineers also minimized windage in the rotating assembly – leading to superior engine lubrication at higher RPM.
56
LS Performance
To make it friendly for existing race applications, the block
contains both factory and motor plate race mounts for Gen
I, II, III and IV engines. And for quality assurance, RHS
conducts a CT scan (similar to a medical CAT scan) on each
block to ensure maximum precision and consistency. Combine that with more standard features than any block on the
market and the RHS LS Race Block becomes the benchmark
of LS power, strength and compatibility for radical street
and all-out racing applications. Starting at $4,979.84.
Standard Features
Engineered from extremely strong and durable, aircraft-quality A357-T6 aluminum material
Siamese cast bore walls (4.125" or 4.165" available)
with press-in cast iron sleeves
Available in both standard (9.240") and tall (9.750")
deck heights with an extra-thick deck surface (.500"
standard deck/.750" tall deck); standard (5.87") and
tall (6.38") deck cylinder sleeves also available
6-Head bolt design (follows GM LSX strategy) with full
water jacket around cylinders (solid-filled versions available); large valley windows access inboard 6th head bolt
Block design includes large front and rear -12AN side
feeds for serious dry sump setups
Added material for oversized lifters (accepts 1.060"
bushing for keyed lifters) and lifter bosses that are
designed to clear tie bar lifters
Able to accomodate up to a 60mm camshaft with a
68mm parent bore
Race mounts and Gen I, II, III & IV mounts
Chilled main bearing bulkheads
Gen IV knock sensor compatible
Gear drive idler mounting pad
LS Race Block Applications
LS Race Block Applications
Bore
Cylinder
Deck Height
Dia. Sleeve Length Part #
Finished Honed  Standard (9.240")
3.900"
5.87"
54906
Finished Honed  Standard (9.240")
4.125"
5.87"
54903
Finished Honed  Standard (9.240")
4.165"
5.87"
54902
Finished Honed  Tall (9.750")
4.125"
6.38"
54901
Finished Honed  Tall (9.750")
4.165"
6.38"
54900
Bored, Ready to Hone  Standard (9.240") 3.895"
5.87"
54906U
Bored, Ready to Hone  Standard (9.250") 4.120"
5.87"
54903U
Deck Height
Bored, Ready to Hone  Standard (9.250")
Bored, Ready to Hone  Tall (9.760")
Bored, Ready to Hone  Tall (9.760")
Solid-Filled  Standard (9.250")
Solid-Filled  Tall (9.760")
Unfinished  Standard (9.250")
Unfinished  Tall (9.760")
Bore
Cylinder
Dia. Sleeve Length
4.160"
5.87"
4.120"
6.38"
4.160"
6.38"
4.100"
5.87"
4.120"
6.38"
4.100"
5.87"
4.100"
6.38"
Part #
54902U
54901U
54900U
54907U
54908U
54905
54904
Note: Custom options available. Call 1.877.776.4323 for details and lead time.
compperformancegroup.com
57
Aluminum Cylinder Heads
Pro Elite LS7 CNC-Ported
Rectangle Port
RHS Pro Elite Aluminum Cylinder Heads for LS7 Applications are designed with a 12-degree valve angle and
unique .220" raised intake runners to provide a better
line of sight into the cylinders and allow for an improved
short turn. In addition, custom CNC-machined runners
optimize volume, atomization and velocity.
Engineered from 355T6 aerospace-grade aluminum alloy,
the heads feature the popular LS 6-bolt head design, making them compatible with the RHS LS Race Block and all
OEM or aftermarket GM LS-type blocks. The design also increases clamping capacity to improve cylinder head gasket
retention on high horsepower and boosted applications.
These features, and a .750" thick deck surface, increase
integrity in high cylinder pressure applications. In addition, the Pro Elite Heads have a reinforced solid rocker rail
engineered for shaft mount rockers to provide increased rigidity and valve train stability. Raised .400" valve cover rails
provide clearance for aftermarket rocker systems, while
the raised runner and rolled valve angle increase overall
flow capability. These features, coupled with an improved
water jacket design, make them ideal heads for both small
and large cubic inch, hardcore street applications. Prices
vary depending on head style and retainer material.
Series:
Pro Elite
Description:
LS7 CNC-Ported Rectangle Port Cylinder Heads; Aluminum; Angle Plug; Bare or Fully Assembled; Hydraulic Roller Assemblies
Available
Application:
Large & Small Cubic Inch, Hardcore Street Applications
Valve Guides:
Premium Bronze Material
Spark Plugs:
14mm Thread, .750" Reach, Gasketed
Assemblies
Include:
Stainless Steel Valves, Valve Springs, Retainers, Valve Locks,
Guide Plates, Rocker Studs & Valve Seals
Bare
Part #
Runner Chamber
Spark
Plugs
Valve Size
In.
Ex.
Assembled
Part #
Valve Train
Max Lift
Valve Springs
Retainers
Part #
Material1
P-Port (w/o Valve Job)
54500
в€’
в€’
Angle
в€’
в€’
в€’
в€’
в€’
в€’
в€’
в€’
291cc
291cc
291cc
291cc
291cc
291cc
291cc
69cc
69cc
69cc
69cc
69cc
69cc
69cc
Angle
Angle
Angle
Angle
Angle
Angle
Angle
2.200"
2.200"
2.200"
2.200"
2.200"
2.200"
2.200"
1.615"
1.615"
1.615"
1.615"
1.615"
1.615"
1.615"
54501-05HCS2
54501-06STS2
54501-06STI2
54501-06TTSX3
54501-06TTIX3
54501-06TTS4
54501-06TTI4
Hyd. Roller
Hyd. Roller
Hyd. Roller
Hyd. Roller
Hyd. Roller
Hyd. Roller
Hyd. Roller
.660"
.675"
.675"
.675"
.675"
.675"
.675"
26925
26926
26926
26926
26926
26926
26926
713
1779
779
1779
779
1779
779
CS
TS
TI
TS
TI
TS
TI
Angle
в€’
в€’
в€’
в€’
в€’
в€’
в€’
в€’
Angle
2.200"
1.615"
в€’
в€’
в€’
в€’
в€’
в€’
CNC-Ported
54501
Sprint Car P-Port (w/o Valve Job)
54509
в€’
в€’
Sprint Car CNC-Machined
54510
291cc
69cc
1�CS’ denotes Chromemoly Steel, �TI’ denotes Titanium & �TS’ denotes Tool Steel.
58
LS Performance
2 With Manley lightweight hollow stem stainless intake valves and severe duty solid
stainless exhaust valves.
With Manley titanium intake valves and
Inconel exhaust valves.
4With Manley titanium intake valves and
titanium exhaust valves.
A
B
Pro Elite 307cc Big Port LS7
CNC-Ported Cylinder Heads
Pro Elite 3.900" Bore LS7
CNC-Ported Cylinder Heads
These are the only raised runner aftermarket LS7 heads
with the runner volume to support large cubic inch applications, yet they are still able to utilize both production and
aftermarket intake manifolds and valve trains.
RHS Pro Elite 3.900" Bore LS7 Cylinder Heads not only
get the best LS rectangular port heads onto all GM LS 5.76.0L blocks, they also provide up to 100 bolt-on horsepower over stock and feature all of the benefits of other
RHS LS7 heads.
Intake ports are raised .220" from the stock location or a
straight line of sight to the cylinder. The heads feature a
.750"-thick deck surface and reinforced rocker rails, which
make them perfect for high horsepower and boosted applications. They work well with all existing LS7 parts, but
have a bigger intake port size and valve than the standard
RHS Pro Elite LS7 Cylinder Heads.
Featuring the popular 6-bolt head design, makes them
compatible with both the RHS LS Race Block, GM LSX
block and OEM GM LS blocks. These aluminum, CNCported heads feature a 307cc intake runner, 98cc exhaust
runner and 69cc chamber volume. The intake valve is
2.250" x 5/16", while the exhaust valve is 1.615" x 8mm.
Starting at $1,221.94 for individual cylinder head.
These cylinder heads fit all LS applications down to the
3.900" bore and utilize LS7 intake manifolds. Offered in
both CNC-port and P-Port (unfinished runner) versions,
the heads’ intake ports are raised .220" from the stock
location for a straight line of sight into the cylinder,
and utilize the LS 6-bolt head design compatible with
both the RHS LS Race Block and GM LSX Block. They
can also be used with OEM, 4-bolt blocks.
Additionally, a .750"-thick deck surface and reinforced
rocker rails make for more rigidity in high horsepower
and boosted applications. RHS Pro Elite 3.900" Bore LS7
Cylinder Heads are designed to use eight standard, LS1style exhaust rockers and eight offset LS3-style intake
rockers and stands. Starting at $636.74, per individual cylinder
head based on porting option.
Series:
Pro Elite
Series:
Pro Elite
Description:
CNC-Ported LS7 Cylinder Heads; Aluminum; Angle Plug; Bare or
Custom Assemblies Available
Description:
CNC-Ported LS7 Cylinder Heads; Aluminum; Angle Plug; Bare or
Custom Assemblies Available
Application:
Larger Cubic Inch, All-Out Race; 454-502c.i. LS Street Engines
Application:
Larger Cubic Inch, All-Out Race; 454-502c.i. LS Street Engines
Valve Guides:
Premium Bronze Material
Valve Guides:
Premium Bronze Material
Spark Plugs:
14mm Thread, .750" Reach, Gasketed
Spark Plugs:
14mm Thread, .750" Reach, Gasketed
Custom
Stainless Steel Valves, Valve Springs, Retainers, Valve Locks,
Assemblies Include: Guide Plates, Rocker Studs & Valve Seals
Custom
Stainless Steel Valves, Valve Springs, Retainers, Valve Locks,
Assemblies Include: Guide Plates, Rocker Studs & Valve Seals
Bare
Valve Size
Part #
Runner
Chamber
Spark Plugs
In.
Ex.
Application
Part #
307cc
266cc
69cc
66cc
Angle
Angle
2.250" x 5/16"
2.100" x 8mm
1.615" x 8mm
1.575" x 8mm
454-502c.i.
345-377c.i.
54504
54503
–
–
Angle
2.100" x 8mm
1.575" x 8mm
345-377c.i.
54502
CNC-Ported
A. Pro Elite Big Port LS7 CNC-Ported
B. Pro Elite 3.900" Bore LS7 CNC-Ported
P-Port (Unfinished Runner)
Pro Elite 3.900" Bore LS7 P-Port
compperformancegroup.com
59
ZEX
Lets Talk ABOUT
Debunking The Myths of Nitrous Oxide
While there has never been any question as to the wonderful power inducing performance gained by injecting nitrous oxide into your engine,
it has also been surrounded by some serious misconceptions.
So we’re here to clear the air. The following are what we believe to be the
top three myths about nitrous injection and its effects on your engine.
Myth #1: Nitrous will blow up my
engine!
Simply stated, nitrous, when properly installed
according to the manufacturer’s instructions,
will NOT blow up your engine. Nitrous is still the
easiest and safest way to greatly increase your
engine’s horsepower.
Problems arise when people realize how easy
it is to significantly increase engine power.
With today’s modern nitrous systems, all that
is required is approximately two minutes
to change the nitrous and fuel jets, which
can add an additional 50, 100, even 300
horsepower. Beginners often try to push the
window, figuring if everything appears to be
running well, a “little” more nitrous can’t hurt
their engine. But, novice nitrous users forget
to make the proper (and safe) engine ad60
LS Performance
justments in accordance with the increased
nitrous jet sizing.
The most commonly overlooked adjustments
include forgetting to retard the ignition timing, not changing to “colder” heat range
spark plugs, and in some cases, not installing an increased flow capacity fuel pump
to deliver sufficient fuel flow. The result is a
nitrous system that is not correctly installed
for safe operation, making engine damage
inevitable. As long as the installer follows
the manufacturer’s tuning instructions and
advice with regard to engine adjustments
and vehicle upgrades, they will have safe,
reliable power gains that will not harm their
engine in any way.
All ZEX Systems
incLUDE:
Fuel Shear Technology
ZEX Fuel Shear Technology injects enrichment fuel using a fuel transfer tube. The
tube allows the nozzle to directly inject fuel
into the highest velocity area of the nitrous
plume. This high-speed nitrous shears the
fuel away from the tube, atomizing it to
levels other nozzle designs never achieve.
This ensures perfect fuel distribution from
cylinder to cylinder. The finely atomized
mixture also burns more powerfully and
maximizes the horsepower you get from
your nitrous system.
Active Fuel
Control Technology
In your engine, a vacuum is created as
nitrous gas is sprayed across the open
end of the nozzle’s fuel transfer tube. As
bottle pressure rises or lowers due to bottle
temperature changes, the speed of the nitrous discharge varies to the same degree.
This causes the level of vacuum draw in
the fuel transfer tube to vary as well. This
variable vacuum draw causes the nozzle to
“pull” more or less enrichment fuel into the
engine. This means your engine never runs
too lean or too rich. The nitrous tune-up
stays dead-on for maximum engine safety
and power at all times.
TPS Sensor
For optimum safety, every ZEX kit features a
patented TPS switch to activate the nitrous
system only at wide-open throttle. It is fully
compatible with throttle-by-wire engines.
Myth #2: Blowers & turbos are safer than
nitrous injection.
A properly installed nitrous system offers virtually the same level of engine safety as supercharger and turbocharger enhancements. Forced induction engine kits are most commonly complete packages that include
fuel system and computer tuning upgrades. This allows the manufacturer to build a safe computer “tune-up” into the system they provide. But
adding all of those extras raises the cost of the upgrade by thousands
of dollars.
With a nitrous system, the manufacturer provides precisely what is
required to safely use nitrous, as well as detailed recommendations
when fuel and ignition upgrades are necessary. The beauty of this information is that the customer makes the decision as to how far they
can go with their nitrous system based on their specific upgrades. A
person spraying a 75 HP shot of nitrous doesn’t require a fuel pump
upgrade, so why should he or she pay extra for one? But a person that
wants to spray a 200 HP shot will definitely need to increase the fuel
flow as well as the ignition system performance.
When it comes down to it, a nitrous system is just as safe as a blower
or turbo kit as long as it’s installed with the fuel and ignition system
upgrades needed for the power level you wish to run.
Myth #3: Nitrous oxide is the same thing as
nitro methane.
Nitrous oxide and nitro methane are NOT the same thing – not even
close! Many people, especially those casual spectators of Top Fuel
and Funny Car drag racing, think that nitrous and nitro are the same
fuel. Having watched racers explode engines while making a 300 mph
run down the quarter mile, they believe that nitrous will also cause
their engines to blow up. Nothing could be further from the truth.
The nitro methane used in Top Fuel competition is a very volatile liquid
fuel and only racing engines designed specifically for it can handle its
huge power and destructive force. In these applications, nitro methane
is the main fuel source, constituting as much as 90 percent of the total
fuel burned.
Nitrous oxide, on the other hand, is injected into the engine in comparatively small amounts and delivers smooth burning characteristics
that enhance the fuel’s combustion process. Whether it’s a small 55
HP shot of nitrous added to a four cylinder engine or a 300 HP shot
added to a properly built V8 racing engine, nitrous allows you to add
just the right amount of power without fear of damaging your engine.
Description
LSX  Nitrous System Purple
LSX  Blackout Nitrous System
LSX  Nitrous System W/Out Bottle
LSX High Output  Nitrous System Purple
LSX High Output  Nitrous System Polished
LSX High Output  Nitrous System W/Out Bottle
2010-2011 Gen V V6 Camaro  Nitrous System Purple
2010-2011 Gen V V6 Camaro  Blackout Nitrous System
2010-2011 Gen V V8 Camaro  Nitrous System Purple
2010-2011 Gen V V8 Camaro  Blackout Nitrous System
LS1/LS6 Wet  Purple
LS1/LS6 Wet   Polished
Pontiac G8 GT  Nitrous System
LS Series Perimeter Plate  Nitrous System
LS Series Perimeter Plate  Conversion Kit
Part #
82235
82235B
822351
82087
82087P
820871
82367
82367B
82380
82380B
82026
82026P
82326
82195
82039
LSX Systems
Starting at
$434.49
•• Fuel tuned for GM LSX engines - LS1, -2, -3, -6, -7, L99,
Gen III/IV
•• Adjustable from 75-175 HP
•• Noticeable power increases when custom jetted
•• Extra long nitrous feed line (18 ft.) for easy installation in
all F-Bodied vehicles
LSX High Output
Systems
Starting at
$434.49
•• Fuel tuned for GM LSX engines - LS1, -2, -3, -6, -7, L99,
Gen III/IV
•• Allows you to spray from 100-250 HP
•• Features giant, high-flow nitrous & fuel solenoids along with
-4AN nozzle feed lines
•• Enrichment fuel injected into nitrous for better atomization
2010-2011
Camaro Systems
Starting at
$610.28
•• V6 system adjustable from 55-100 additional HP
•• V8 system adjustable from 75-175 additional HP
•• Available in classic purple and Blackout systems
LS1/LS6 Wet System
Starting at
$593.81
•• Designed to provide 75-125 HP
•• Can be installed on turbocharged/supercharged vehicles
Pontiac G8 GT System
Starting at
$614.14
•• Safe power gains on stock to highly modified 2008-Current
Pontiac G8 GTs
•• Adjustable from 75-175 HP
•• Works perfectly with G8 GT throttle-by-wire
•• Features custom desinged nitrous management unit bracket for easy under-hood mounting
LS Perimeter Plate
Nitrous Systems
Starting at
$350.15
•• Compatible with both cable and throttle-by-wire engines
•• Adjustable from 75-300 HP
•• Fits 90mm and larger, 4-bolt style OEM and aftermarket
throtttle body/manifold combinations
•• Conversion kit updates spray-bar type nitrous system
•• Conversion kit starting at $350.15, nitrous system at
$836.88
Induction
The Art of
The first choice when it comes to exotic EFI
induction systems, Inglese offers world class
looks and state-of-the-art performance.
A
EZ-EFI 8-Stack Induction Systems
These technically advanced systems from Inglese deliver
increased performance, cold starts and drivability for your
GM LS street rod, muscle car or restored classic.
Aircraft-quality hex aluminum linkage delivers smooth
actuation while custom engineered low-profile fuel rails
sit below the stacks and between the throttle bodies. Additionally, the systems are capable of supporting engines
producing up to 1000 horsepower and allow a much
broader camshaft selection than a carbureted setup.
EZ-EFI Eight Stack Induction Systems employ advanced
FAST EZ-EFI electronics and exclusive cast aluminum
50mm IDA-style throttle bottles. The EZ-EFI is a self learning fuel injection system that tunes itself as you drive and
does not require the use of a laptop. Simply answer a few
Custom
Options For
All Inglese
Systems
62
POLISH  Any part of an
Inglese system can be
polished, including the
manifold, stacks, linkages and throttle bodies
LS Performance
easy questions on the system’s hand-held unit. The EZ-EFI
controller will then use that information to establish the
base tuning file, and then “learn” as you drive, while honing in on the optimum tune. It really is that easy.*
Injectors and stacks are sold separately. Throttle bodies
and fuel rails are included but are also available individually for custom built EFI systems. Kits are also available
without FAST EZ-EFI engine controls for use with existing
EFI engine controllers. Starting at $4,635.88.
* Since EZ-EFI does NOT control ignition, an ingnition controller will need to be purchased.
Base Kit
GM LS1-Style, Cathedral Port Heads, 50mm
A. GM LS3/L92-Style, Rectangle Port Heads, 50mm
PAINT  Inglese can
match custom paint
colors
Powder Coating 
Create the custom color
you want with a durable
powder coating process
As Cast
Polished
Part #
Part #
NG4089E NG4089EP
NG4090E NG4090EP
Filters  Filters are
available in both screen
and nylon versions and
are available as sets or
individually
B
XFI 2.0 8-Stack
Induction Systems
HOW TO ORDER YOUR INGLESE
EFI INDUCTION SYSTEM
These systems feature all the benefits of Inglese EZ-EFI Systems
but also harness the incredible power of the FAST XFI 2.0.
XFI 2.0 is an electronic fuel injection system with revolutionary
features and capabilities in an easy-to-use package. The system
precisely balances fuel and spark, allowing the user to fine tune
like never before.
To make ordering your Inglese EFI Induction System
easier, we’ve made a complete checklist of parts that
you will need. Simply make your way down the list and
select the part numbers that fit your application. And
remember, you can always call our toll free STREET
ROD HELP line at 1.866.450.8089 for assistance.
Not only does it allow fine tuning, but it is capable of supporting up to 1000 horsepower engines and allows for more
aggressive camshaft choices.
Choose “Base Kit” System
Systems feature an aircraft-quality hex aluminum linkage designed to provide smooth and stick-free actuation and the
manifold uses custom-engineered, low-profile fuel rails that
sit below the stacks and between the throttle bodies. These
amazing systems are engineered to deliver reliable service under normal heat environments and avoid the common linkage
binding found with many inferior systems.
A complete system includes an ECU, harness, sensors and software that’s completely configurable and allows you to set your
desired parameters. Fuel injectors, stacks and fuel pump kit are
sold separately from base kit. Professional tuning is required.
Inglese can recommend a local tuner. Starting at $5,759.71.
Base Kit
GM LS1-Style, Cathedral Port Heads, 50mm
B. GM LS3/L92-Style, Rectangle Port Heads, 50mm
As Cast
Polished
Part #
art #
NG4089F NG4089FP
NG4090F NG4090FP
This is determined by what type of engine you have
(will include manifold and throttle body assembly
and a complete FAST EZ-EFI or XFI 2.0 kit). See page
30–32 for EFI systems.
Choose Iginition Controller
This is based on the EFI system you select – Choose
the EZ-LS or XIM. See page 33.
Choose Injector Size
Sold separately, this is based on your targeted horsepower (sold separately from the “base kit”). See page 64.
Choose Stack Size
Sold separately from the “base kit.” See page 64.
Choose Fuel Pump Kit
This is based on your targeted horsepower – you need 60
psi (sold separately from the “base kit”). See page 64.
compperformancegroup.com
63
C
D
A
Description
A. Precision-Flow Fuel Injectors  8 Pack 39lb/hr Injectors – 550 HP
Precision-Flow Fuel Injectors  8 Pack 50lb/hr Injectors – 700 HP
Precision-Flow Fuel Injectors  8 Pack 65lb/hr Injectors – 925 HP
Precision-Flow Fuel Injectors  8 Pack 85lb/hr Injectors – 1200 HP
EFI Stacks  50mm Brushed Alum. Stacks EFI Throttle Bodies for 50mm – Set of 8
B. EFI Stacks  100mm Brushed Alum. Stacks for 50mm EFI Throttle Bodies – Set of 8
EFI Stacks  1.50" Billet Alum. Stacks for 50mm EFI Throttle Bodies – Set of 8
EFI Stacks  1.50" Billet Alum. Stacks for 58mm EFI Throttle Bodies – Set of 8
EFI Stacks  3.50" Billet Alum. Stacks for 50mm EFI Throttle Bodies – Set of 8
EFI Fuel Systems  High Flow Fuel Systems – 500 HP
EFI Fuel Systems  High Flow Fuel Systems – 600 HP
C. EFI Fuel Systems  High Flow Fuel Systems – 1000 HP
Filters  Urethane Snap-In Stack Filters - Set of 8
D. Filters  Urethane Snap-In Stack Filters - Set of 8
Filters  EFI “No Show” Metal Screen Filters
1 Also available in sets of four (-4)
Need CARB Induction?
Inglese also offers Weber & EMPI 8-Stack Induction Systems for GM LS.
Call 1.866.450.8089 or go to inglese.com for pricing and more information.
64
LS Performance
B
Part #
30397-8
30507-8
30657-8
30857-8
NG4015-8
NG4014-8
NG5103-81
NG5105-8
NG5104-81
307503
307502
307500
NG5110-8
NG5111-8
NG4040-8
Modern Performance
Meets Hot Rod Attitude
You Don’t Have To Sacrifice
Your Muscle Car’s Soul Just To Get
The Benefits Of A GM LS Engine
Hated by Neighbors,
Envied By Friends
Let’s face it, nothing grabs our attention at car shows
and cruise nights better than a car with an aggressive,
hard thumping, high-performance idle. In their ongoing
quest to provide enthusiasts with the PERfORMAnCE,
SOunD & DRIvABILITY they crave, the COMP CamsВ®
engineers expanded the Thumprв„ў series of camshafts to
include grinds specifically designed to give late model LS
engines real hot rod attitude.
Featuring specially engineered profiles for late model GM
LS engines, these camshafts provide the perfect combination of early intake valve opening and long exhaust
duration with a generous amount of overlap to maximize
your engine’s nasty idling characteristics without negatively impacting streetability. Thumpr™ Camshafts and
matching valve train parts are EASY-TO-InSTALL, direct
replacement components that exceed the quality and durability standards of OE parts. Finally, your late model LS
powerplant can provide an authentic hot rod experience.
Without question, the Thumprв„ў Camshafts are in a class
of their own when it comes to serious “seat of the pants”
performance and a head-turning, aggressive idle.
Don ’ t ta k e o ur wo r d f o r i t !
Visit www.compcams.com/thumpr to hear & check specs.
8530z
I
f you’ve already made the switch to a modern GM LS
engine for your classic hot rod, you know that the benefits of “start and drive” convenience and unmatched
reliability are incredible. But these great engines fall short
when it comes to experiencing the traditional sound and
performance of a REAL HOT ROD. Not anymore. The
Thumprв„ў Camshaft line-up from COMP CamsВ® was designed to add authentic hot rod attitude to modern engines without sacrificing reliability or street manners.
LS
Toolkit
Valve Spring Compressor
This piece is specifically designed to work with all GM Gen III/
IV LS-type engines. The easy-to-use custom design enables the
removal of two valve springs at a time without the hassle of
removing the rocker stand or any of the other installed rockers. The
tool works with cylinder heads installed on an engine or with the
cylinder heads off. Starting at $102.96
Camshaft
Degree Kit
Crankshaft
Socket
This specially designed LS
1/2" drive socket allows rotation of the engine assembly
while a knurled retaining nut
holds the degree wheel in
place. To make things easier,
it can be loosened while on
the crank snout so that the
wheel can be turned independent of the engine when
finding TDC. Starting at $50.61
(Cylinder Heads Off Engine)
Engine Plug Kits
It’s easy to overlook the smaller
parts of the engine until the final stages of the build.
That's why COMP Cams developed this Engine Plug
Kit. It includes all the plugs needed to finish building
or upgrading your LS engine. Made from brass and
galvanized steel to resist corrosion, the plugs in this kit
will last for years without rusting or becoming stuck in
the engine block. Starting at $30.86
Description
Engine Plug Kit   LS Engine Plug Kit
Valve Spring Compressor  GM LS Valve Spring Compressor
66
LS Performance
This kit contains everything needed for camshaft degreeing when
the cylinder heads are OFF of the
engine. Starting at $199.07
Part #
251
5462
Kits Include the Following:
•• 9" Degree Wheel
•• Heads Off Degreeing Fixture
•• 0-1" Travel Dial Indicator
•• 5" Dial Indicator Extension
•• Plate Style TDC Stop
•• Wire Degree Wheel Pointer
•• One Crankshaft Socket
Description
Crankshaft Socket  Gen III/IV LS-Type
Camshaft Degree Kit  Gen III/VI LS-Type Kit
Part #
4914
4942
The
Daily
Grind
Ordering a special grind camshaft
may be the best course of action when
building your LS engine
There is no more critical part of an engine than the
camshaft – often referred to as the brains of the engine.
The patterns and position of the lobes of the camshaft
determine the timing and lift applied to the valves and
valve train. So it goes without saying that selecting the right
camshaft is clearly the most important decision you make
after engine choice.
When it comes to LS engines, COMP Cams offers a wide
range of standard camshaft offerings. For street engine applications, these are more than appropriate. But that does
not mean they don’t invite creative camshaft requests for
more complex engine applications. Many high tech engine
builders are very sensitive when it comes to developing
their own cam designs and other valve train gear. They have
specific requirements that require special orders.
COMP Cams created literally thousands of special grind
camshafts for LS engine builders in 2013 alone. That’s a
lot of custom ordering. But that does not mean lengthy
wait times or extra costs. COMP Cams custom grinds take
less than 72 hours to grind and cost no more than a standard part numbered camshaft.
The following pages include COMP’s popular shelf-grind
camshafts. This will help many engine builders select from
a wider range of cams and lessen their development time.
But remember, if you still don’t see something you like –
your custom cam can easily be created.
How To Identify Your GM LS Non-VVT Engine Management System
A
B
C
LS Engine Car Applications
Year
LS1
97-04
97-04 Corvette
98-02 Camaro/Trans Am
04 Pontiac GTO
Three-Bolt
54 Prefix
NO
NO
5.7
LS6
01-05
01-04 Corvette Z06
04-05 Cadillac CTS V
Three-Bolt
54 Prefix
NO
NO
5.7
05-09
05-07 Buick Rainier
05-06 Pontiac GTO
06-07 Cadillac CTS V
05-07 Corvette
05-06 SSR
06-07 Trailblazer SS
Three-Bolt
54 Prefix
NO
07-09 Trailblazer SS
Sinlge-Bolt
146 Prefix
NO
06-13 Up Corvette ZO6
Three-Bolt
54 Prefix
NO
NO
7.0
09-13 Corvette ZR1
Three-Bolt
54 Prefix
NO
NO
6.2
LS2
07-09
LS7
06 & Up
LS9
09
LS3
LS4
L98
L76
Core
NO
NO
Single-Bolt
146 Prefix
06-09
06-09 Impala SS
06-07 Monte Carlo SS
05-08 Pontiac Grand Prix GXP
08 Buick LaCrosse
Single-Bolt
646 Prefix
NO
07-08 Lumina SS
07-08 Caprice SS
Single-Bolt
146 Prefix
NO
NO
6.0
08-09 Pontiac G8 GT
Single-Bolt
646 Prefix
NO
YES
6.0
Single-Bolt
11 & Up Caprice Police Vehicle
646 Prefix
NO
YES
6.0
08-09
NO
YES
Three-Bolt Cam
4 Pole Reluctor
“54” Series
C
Single-Bolt Cam
4 Pole Reluctor
“146” and “646” Series
LR4
99-07
LY2
07-09
99-06 Tahoe/Yukon
99-07 Silverado/Sierra
03-07 Express 2500-3500
03-07 Savana 2500-3500
Three-Bolt
54 Prefix
NO
NO
4.8
07-09 Silverado/Sierra
07-09 Tahoe/Yukon
08-09 Express 2500-3500
08-09 Savana 2500-3500
Single-Bolt
146 Prefix
NO
NO
4.8
L20 09 & Up
09 & Up Silverado/Sierra
09 & Up Express/Savana
Single-Bolt
189 Prefix
YES
NO
4.8
LM7
99-07
99-06 Tahoe/Yukon
99-06 Suburban/Yukon XL
99-07 Silverado/Sierra
02-05 Escalade 2WD
02-06 Avalanche
03-07 Express/Savana
Three-Bolt
54 Prefix
NO
NO
5.3
LM4
03-04
03-04 Trailblazer EXT
04 Envoy XL
03-04 SSR
04 Buick Rainier
Three-Bolt
54 Prefix
NO
NO
5.3
L33
05-07
05-07 Silverado/Sierra 4WD
Three-Bolt
54 Prefix
NO
NO
5.3
L59
02-07
02-07 Silverado/Sierra
02-06 Tahoe/Yukon
02-06 Suburban/Yukon XL
Three-Bolt
54 Prefix
NO
NO
5.3
05-09
05 Envoy XUV
05-06 Envoy XL
05-09 Envoy Denali
05-09 Trailblazer
07 Silverado 1500
05-07 Buick Rainier
07-09 Sierra 1500
Single-Bolt
646 Prefix
NO
YES
5.3
L99
10-14
10-14 Camaro SS (Auto)
Single-Bolt
689 Prefix
YES
YES
6.2
09-14
09-14 Cadillac CTS V
12 Camaro ZL1
Single-Bolt
146 Prefix
NO
NO
6.2
LH6
Applications
AFM/
DOD Liter
VVT
5.3
11 & Up
68
B
Core
6.2
L77
LSA
Year
6.0
08-14
NO
RPO
6.0
08-13 Up Corvette
09 Pontiac G8 GXP
10-14 Camaro SS (Manual)
07-08
Three-Bolt Cam
No or 1 Pole Reluctor
“54” Series
LS Engine Truck Applications
AFM/
VVT DOD Liter
RPO
LS2
Applications
A
GM LS Camshaft
Core Types
1
Gen III/IV Three-Bolt Cam
“54” Series
2
Gen IV Single-Bolt W/O VVT Cam
“146” and “646” Series
3
Gen IV Single-Bolt W/ VVT Cam
“156” and “656” Series
“189” and “689” Series
1
2
LS Engine Truck Applications (cont.)
LS Engine Truck Applications (cont.)
AFM/
VVT DOD Liter
RPO
Year
Applications
Core
LY5
07 & Up
07 & Up Avalanche
07 & Up Silverado/Sierra
07 & Up Tahoe/Yukon
07 & Up Suburban/Yukon XL
Single-Bolt
646 Prefix
LMG 07 & Up
07 & Up Avalanche
07 & Up Tahoe/Yukon
07 & Up Suburban/Yukon XL
Single-Bolt
646 Prefix
NO
YES
5.3
LC9 07 & Up
07 & Up Avalanche
07 & Up Suburban/Yukon XL
Single-Bolt
689 Prefix
YES
YES
5.3
LH8
08-10 Hummer H3
09-10 Colorado/Canyon
Single-Bolt
146 Prefix
NO
NO
5.3
LH9 10 & Up
10 & Up Colorado/Canyon
Single-Bolt
189 Prefix
YES
NO
5.3
LMF 10 & Up
10 & Up Express/Savana
Single-Bolt
189 Prefix
YES
NO
5.3
LQ4
99-07
99-07 Express/Savana
99-01 Silverado/Sierra
Three-Bolt
2500/23500
54 Prefix
99-01 Suburban/Yukon XL 2500
03-07 Hummer H2
LQ9
02-07
02-06 Cadillac Escalade
02-06 Cadillac Escalade EXT
03-06 Cadillac Escalade ESV
03-07 Silverado SS
04-05 Silverado/Sierra HO Edition
06-07 Silverado/Sierra MAX
Option
Three-Bolt
54 Prefix
NO
NO
6.0
LY6
07-10
07 Silverado/Sierra HD
07 Suburban,Yukon XL 2500
07 Express/Savana
Single-Bolt
156 Prefix
YES
NO
6.0
08-10
07-10 Silverado/Sierra HD
Single-Bolt
07-10 Suburban,Yukon XL 2500
189 Prefix
07-10 Express/Savana
YES
07-09
07-09 Silverado/Sierra
07-09 Suburban/Yukon XL
07-09 Avalanche
YES
LY6
L76
08-10
3
Single-Bolt
656 Prefix
NO
NO
YES
NO
NO
YES
5.3
6.0
RPO
Year
L76
07-09
LFA
08-09
AFM/
DOD Liter
Core
VVT
07-09 Silverado/Sierra
07-09 Suburban/Yukon XL
07-09 Avalanche
Single-Bolt
689 Prefix
YES
YES
6.0
08-09 Tahoe/Yukon Hybrid
09 Cadillac Escalade Hybrid
09 Silverado/Sierra Hybrid
Single-Bolt
646 Prefix
NO
YES
6.0
LZ1 10 & Up
10 & Up Tahoe/Yukon Hybrid
10 & Up Cadillac Escalade
Hybrid
10 & Up Silverado/Sierra
Hybrid
Single-Bolt
646 Prefix
NO
YES
6.0
L96 11 & Up
10 Present Silverado/Sierra
HD
10 & Up Suburban,Yukon
XL 2500
10 & Up Express/Savana
Single-Bolt
189 Prefix
YES
NO
6.0
LC8 11 & Up
11 Present Silverado/Sierra
HD-CNG
Single-Bolt
11 & Up Suburban,Yukon XL
189 Prefix
2500-CNG
11 & Up Express/Savana-CNG
YES
NO
6.0
L92 07 & Up
07-08 Cadillac Escalade
07-08 Yukon/Yukon XL Denali
08-09 Hummer H2
09 Tahoe LTZ
09 & Up Silverado/Sierra
1500
07-08 Sierra Denali
Single-Bolt
656 Prefix
YES
YES
6.2
L9H 09 & Up
09 & Up Cadillac Escalade
09 & Up Tahoe LTZ/Yukon Denali
Single Bolt
09 & Up Sierra Denali/SLT
689 Prefix
09 & Up Silverado LTZ
09 Hummer H2
YES
YES
6.2
L94 10 & Up
10 Present Cadillac Escalade
10 & Up Yukon Denali
YES
YES
6.2
6.0
Applications
Single Bolt
689 Prefix
6.0
LS part numbered and custom grind cams start at $411.67, depending on core.
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69
Gm Ls Gen Iii/Iv Three-Bolt 8 Cyl. 1997-Present
Duration
Valve Setting
Valve Lift
In.
Ex.
RPM
Operating
Range
Very strong torque, good mileage. Noticeable increase over stock cam.
Hyd.
Hyd.
800 to 5800
54-408-111
XR259HR
259
265
206
212
.515
.522
112В°
Good torque and very strong mid-range power. Good performance cam.
Hyd.
Hyd.
1200 to 6000
54-412-111
XR265HR
265
271
212
218
.522
.529
114В°
Great mid-range with superior top end power. Needs programmer.
Hyd.
Hyd.
1300 to 6300
54-414-111
XR269HR
269
273
216
220
.525
.532
114В°
Street/strip camshaft for high RPM power. Likes higher rocker ratios.
Must have programmer.
Hyd.
Hyd.
1600 to 6600
54-416-111
XR273HR
273
277
220
224
.530
.534
112В°
Street/strip camshaft designed for use with FAST LSX intake.
Requires programmer.
Hyd.
Hyd.
2000 to 6800
54-418-111
XR277HR
277
281
224
228
.534
.537
112В°
Great street cam with very wide power range, good drivability and
excellent response.
Hyd.
Hyd.
1400 to 6700
54-424-111
XR265HR
265
271
212
218
.558
.563
115В°
Great street/strip camshaft for mid-range and high RPM power.
Must have programmer.
Hyd.
Hyd.
1800 to 6800
54-426-111
XR275HR
275
277
222
224
.566
.568
112В°
High RPM street/strip camshaft for use with FAST LSX intake.
Requires programmer.
Hyd.
Hyd.
2200 to 7200
54-428-111
XR281HR
281
283
228
230
.571
.573
112В°
Applications / Camshafts
Camshaft
Part Number
Cam Grind
Number
Advertised
@ .050"
W/ 1.7 Rocker
In.
Ex.
In.
Ex.
In.
Ex.
Lobe
Sep.
Angle
XFI RPM Hydraulic Roller Camshafts
XFI RPM HI-LIFT Hydraulic Roller Camshafts
XFI XE-R Hydraulic Roller Camshafts
High RPM street/strip with XE-R lobe designs. Requires custom tuning.
Hyd.
Hyd.
2000 to 7000
54-444-111
XER273HR
273
279
224
230
.581
.588
114В°
Xtreme Energy XE-R design for standard displacement LS6 and LS1.
Hyd.
Hyd.
2400 to 7200
54-446-111
XER281HR
281
283
232
234
.595
.598
112В°
Xtreme Energy XE-R design for large cubic inch LS6 and LS1.
Hyd.
Hyd.
2800 to 7200
54-448-11
1
XER287HR
287
289
238
240
.605
.609
112В°
4.8L/5.3L Chevrolet/GMC truck. Significant gains in mid and upper
RPM range. Works best with programmer.
Hyd.
Hyd.
800 to 5000
54-450-111
G3 XFI 260
HR15
260
266
206
212
.513
.520
115В°
6.0L Chevrolet/GMC truck. Significant gains in mid and upper RPM
range. Works best with programmer.
Hyd.
Hyd.
800 to 5200
54-452-111
G3 XFI 266
HR15
266
270
212
216
.520
.524
115В°
5.3L/6.0L Chevrolet/GMC truck. Significant gains in mid and upper
RPM range. Exhaust upgrade needed for best performance. Needs
programmer.
Hyd.
Hyd.
1000 to 5700
54-451-111
G3 XFI 261
HR15
261
265
208
212
.554
.558
115В°
High performance street, stock converter ok, best with 2000+
converter and gears, choppy/thumping idle.
Hyd.
Hyd.
2000 to 6400
54-600-111
275THR9
275
295
219
233
.553
.536
109В°
Mutha' Thumpr  High performance street/ strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.
Hyd.
Hyd.
2300 to 6600
54-601-111
283THR9
283
303
227
241
.563
.546
109В°
Big Mutha' Thumpr  Street/strip, needs 9.5:1 compression, 2800+
stall, intake, gears and headers, very rough idle.
Hyd.
Hyd.
2600 to 6800
54-602-111
291THR9
291
311
235
249
.573
.558
109В°
XFI XTREME TRUCK Hydraulic Roller Camshafts
THUMPR Hydraulic Roller Camshafts
LSR CATHEDRAL PORT Hydraulic Roller Camshafts  Small Displacement or Max Torque, 4.8L-5.7L
Very strong torque and excellent response. Works best in heavy
vehicles, low RPM applications.
Hyd.
Hyd.
1300 to 6500
54-455-111
265Lr HR12
265
273
215
223
.604
.610
112В°
Excellent torque with a very broad power band. Great for street
performance and drivability.
Hyd.
Hyd.
1500 to 6700
54-456-111
269Lr HR12
269
277
219
227
.607
.614
112В°
Steady power throughout broad range. Needs aftermarket airflow
improvements on inlet and exhaust.
Hyd.
Hyd.
1700 to 6800
54-457-111
273Lr HR12
273
281
223
231
.610
.617
112В°
Good street/strip camshaft with wide range. Must have substantial
airflow upgrades, inlet and exhaust.
Hyd.
Hyd.
1900 to 7000
54-458-111
277Lr HR13
277
285
227
235
.614
.621
113В°
LSR CATHEDRAL PORT Hydraulic Roller Camshafts  All Out Power for 5.7L-6.2L
Very wide power range and excellent mid-range torque for LS engines
with cathedral port cylinder heads.
Hyd.
Hyd.
2000 to 7000
54-459-111
281LR HR13
281
289
231
239
.617
.624
113В°
Very strong from mid-range to high end torque and horsepower for LS
Hyd.
engines with cathedral port cylinder heads.
Hyd.
2200 to 7200
54-460-111
285LR HR13
285
293
235
243
.621
.624
113В°
Broad top end power range for high RPM, race only LS engines with
aftermarket cathedral port cylinder heads and higher compression.
Hyd.
Hyd.
2400 to 7200
54-461-111
289LR HR14
289
297
239
247
.624
.624
114В°
Excellent top end and high RPM power for race style LS engines with
aftermarket cathedral port cylinder heads.
Hyd.
Hyd.
2600 to 7200
54-462-111
293LR HR14
293
301
243
251
.624
.624
114В°
1 Stock springs cannot be used.
70
LS Performance
Gm Ls Gen Iii/Iv Three-Bolt 8 Cyl. 1997-Present
Duration
Valve Setting
Applications / Camshafts
In.
Ex.
RPM
Operating
Range
Camshaft
Part Number
Cam Grind
Number
Valve Lift
Advertised
@ .050"
W/ 1.7 Rocker
In.
Ex.
In.
Ex.
In.
Ex.
Lobe
Sep.
Angle
LSR RECTANGULAR PORT Hydraulic Roller Camshafts  All Out Power for 5.7L-6.2L
Excellent torque with a very broad power band. Great for street
performance and drivability.
Hyd.
Hyd.
1500 to 6700
54-453-11
269LRR HR13 269
285
219
235
.607
.621
113В°
Good street/strip camshaft with very wide range.
Hyd.
Hyd.
1900 to 7000
54-454-11
277LRR HR13 277
293
227
243
.614
.624
113В°
Very wide power range and excellent mid-range torque for LS engines
with rectangular port cylinder heads.
Hyd.
Hyd.
2000 to 7000
54-469-11
281LRR HR13 281
297
231
247
.617
.624
113В°
Very strong from mid-range to high end torque and horsepower
for LS engines with rectangular port cylinder heads.
Hyd.
Hyd.
2200 to 7200
54-470-111 285LRR HR13 285
301
235
251
.621
.624
113В°
Broad top end power range for high RPM, race only LS engines
with aftermarket rectangular port heads and higher compression.
Hyd.
Hyd.
2400 to 7200
54-471-111 289LRR HR14 289
305
239
255
.624
.624
114В°
Excellent top end and high RPM power for race style LS engines
with aftermarket rectangular port cylinder heads.
Hyd.
Hyd.
2600 to 7200
54-472-111 293LRR HR14 293
309
243
259
.624
.624
114В°
Strong mid-range power when used with a centrifugal blower.
Hyd.
Hyd.
2200 to 7000
54-477-111 277LCB HR14 277
293
227
243
.614
.624
114В°
Good high RPM power when used with a centrifugal blower.
Hyd.
Hyd.
2500 to 7200
54-478-11
285LCB HR15 285
301
235
251
.621
.624
115В°
Best cam for high RPM power in race application when using a
centrifugal blower.
Hyd.
Hyd.
3000 to 7200
54-479-111 293LCB HR16 293
309
243
259
.624
.624
116В°
Best in street/strip LS applications equipped with a Roots type
supercharger.
Hyd.
Hyd.
2400 to 7000
54-467-111 289LRB HR14 289
293
239
243
.624
.624
114В°
Designed for race applications with a Roots blower. Very strong high
RPM power.
Hyd.
Hyd.
2700 to 7200
54-468-111 297LRB HR14 297
301
247
251
.624
.624
114В°
1
LSR CENTRIFUGAL BLOWER Hydraulic Roller Camshafts
1
LSR ROOTS BLOWER Hydraulic Roller Camshafts
GM LS2/LS3 Gen IV Single-Bolt W/O VVT & AFM 8 Cyl. 2005-Present
Valve Setting
Applications / Camshafts
Duration
RPM Operating Camshaft
Range
Part Number
Cam Grind
Number
Valve Lift
Advertised
@ .050"
W/ 1.7 Rocker
In.
Ex.
In.
Ex.
In.
Ex.
Lobe
Sep.
Angle
In.
Ex.
Great street/strip camshaft for mid-range and high RPM power.
Must have programmer.
Hyd.
Hyd.
1800 to 6800
146-426-111
XR275HR13
275
287
222
234
.566
.576
113В°
High RPM street/strip camshaft for use with FAST intake.
Requires programmer.
Hyd.
Hyd.
2200 to 7200
146-428-111
XR281HR13
281
293
228
240
.571
.590
113В°
Excellent torque with a very broad power band. Great for street
performance and drivability.
Hyd.
Hyd.
1500 to 6700
146-456-111 269LrR HR13 269
285
219
235
.607
.621
113В°
Good street/strip camshaft with wide range.
Hyd.
Hyd.
1900 to 7000
146-458-111 277LrR HR13 277
293
227
243
.614
.624
113В°
Very strong from mid-range to high end torque and hp for
single-bolt LS3.
Hyd.
Hyd.
2200 to 7200
146-460-11
285LrR HR13 285
301
235
251
.621
.624
113В°
Broad top end power range for high RPM race only, single-bolt
LS3 applications.
Hyd.
Hyd.
2400 to 7200
146-461-111 289LrR HR14 289
305
239
255
.624
.624
114В°
Excellent top end and high RPM power for race applications using
the single-bolt LS3.
Hyd.
Hyd.
2600 to 7200
146-462-111 293LrR HR14 293
309
243
259
.624
.624
114В°
XFI Hydraulic Roller Camshafts
LSR Hydraulic Roller Camshafts
1
GM LS2/LS3 Gen IV Single-Bolt W/ AFM, W/O VVT Single-Bolt 8 Cyl. 2005-Present
Valve Setting
Duration
In.
Ex.
RPM
Operating
Range
Great all around torque for trucks and other heavy applications;
across the board improvements power over stock AFM cams.
Hyd.
Hyd.
1600 to 6300
646-431-13
262AFM15
Excellent performance gains over the widest possible range in modified applications like a G8 with manifold and headers.
Hyd.
Hyd.
1900 to 6500
646-432-13
266AFM16
Outstanding top end power in modified AFM engines, requires higher
stall, gears, headers, etc. for best performance.
Hyd.
Hyd.
2100 to 6700
646-433-13
270AFM17
Applications / Camshafts
Camshaft
Part
Number
Cam Grind
Number
Advertised
In.
Ex.
Valve Lift
@ .050"
In.
Ex.
W/ 1.7 Rocker Lobe
Sep.
In.
Ex. Angle
XFI AFM Hydraulic Roller Camshafts
275 D 286 D 212 D 224 D .500 D .500 D 115В°
262 N 274 N 210 N 222 N .500 N .500 N 115В°
278 D 290 D 216 D 228 D .500 D .500 D 116В°
266 N 278 N 214 N 226 N .500 N .500 N 116В°
282 D 294 D 220 D 232 D .500 D .500 D 117В°
270 N 282 N 218 N 230 N .500 N .500 N 117В°
1 Stock springs cannot be used.
It is not recommended to use synthetic oil for LS engine break-in.
compperformancegroup.com
71
GM LS Gen IV Single-Bolt W/ VVT, W/O AFM (12585994) 8 Cyl. 2005-2008
Valve Setting
Duration
In.
Ex.
RPM
Operating
Range
Excellent responsiveness and low end torque with good power gains.
Hyd.
Hyd.
1300 to 6500
156-400-13
Substantial power and torque gains across the board.
Hyd.
Hyd.
1600 to 6700
156-401-13
Extremely strong from 4500 past 6700 RPM. Noticeable idle.
Hyd.
Hyd.
1800 to 6900
Best choice for maximum power in aftermarket/CNC head applications.
Hyd.
Hyd.
2000 to 7100
Applications / Camshafts
Valve Lift
In.
Ex.
In.
Ex.
In.
Ex.
Lobe
Sep.
Angle
263PHR14
263
277
210
224
.556
.568
114В°
267PHR14
267
281
214
228
.559
.571
114В°
156-402-13
271PHR14
271
285
218
232
.563
.575
114В°
156-403-13
275PHR14
275
289
222
236
.566
.578
114В°
Camshaft
Part Number
Cam Grind
Number
Advertised
@ .050"
W/ 1.7 Rocker
XFI RPM HI-LIFT Hydraulic Roller Camshafts
GM LS Gen IV Single-Bolt W/ VVT (12585994) & AFM 8 Cyl. 2005-2008
Valve Setting
Duration
In.
Ex.
RPM
Operating
Range
Best choice for vehicles requiring strong off idle torque, while improving power at all RPM. Great for trucks & heavy cars.
Hyd.
Hyd.
1600 to 6500
656-421-13
266PHR14
Very impressive midrange to high RPM power improvements in
modified applications with headers, intake and gears.
Hyd.
Hyd.
1800 to 6700
656-422-13
270PHR15
Outstanding top end power in significantly modified VVT+ AFM apps.
Best w/ stall, gears, headers & intake mods.
Hyd.
Hyd.
2000 to 6900
656-423-13
274PHR16
Applications / Camshafts
Camshaft
Part
Number
Cam Grind
Number
Advertised
In.
Ex.
Valve Lift
@ .050"
In.
Ex.
W/ 1.7 Rocker
In.
Ex.
Lobe
Sep.
Angle
XFI AFM Hydraulic Roller Camshafts
278 D 290 D 216 D 228 D .500 D .500 D
114В°
266 N 278 N 214 N 226 N .500 N .500 N
114В°
282 D 294 D 220 D 232 D .500 D .500 D
115В°
270 N 282 N 218 N 230 N .500 N .500 N
115В°
286 D 298 D 224 D 236 D .500 D .500 D
116В°
274 N 286 N 222 N 234 N .500 N .500 N
116В°
GM LS Gen IV Single-Bolt W/ VVT, W/O AFM (12585994) 8 Cyl. 2005-2008
Valve Setting
Applications / Camshafts
Duration
Valve Lift
In.
Ex.
In.
Ex.
In.
Ex.
Lobe
Sep.
Angle
263PIIHR14
263
277
210
224
.556
.568
114В°
189-401-13
267PIIHR14
267
281
214
228
.559
.571
114В°
1900 to 7000
189-402-13
271PIIHR14
271
285
218
232
.563
.575
114В°
2100 to 7200
189-403-13
275PIIHR14
275
289
222
236
.566
.578
114В°
RPM Operating
Camshaft
Range
Part Number
Cam Grind
Number
In.
Ex.
Great off idle torque for trucks and other heavy or low RPM
applications, while still improving power at all RPM.
Hyd.
Hyd.
1500 to 6600
189-400-13
Excellent responsiveness and mid-range power w/ across the
board gains. Best choice for heavy vehicles & stock gearing.
Hyd.
Hyd.
1700 to 6800
Great all around performance and best choice for mildly modified
L99 Camaro applications with AFM disabled.
Hyd.
Hyd.
Outstanding top end power in modified non-AFM applications,
w/o sacrificing low end if properly programmed.
Hyd.
Hyd.
Advertised
@ .050"
W/ 1.7 Rocker
XFI RPM HI-LIFT Hydraulic Roller Camshafts
GM LS Gen IV Single-Bolt W/ VVT (12606358) & AFM 8 Cyl. 2008-Present
Valve Setting
Duration
In.
Ex.
RPM
Operating
Range
Excellent responsiveness and mid-range power w/ across the board
gains. Best choice for heavy vehicles & stock gearing.
Hyd.
Hyd.
1600 to 6500
689-421-13
266PIIHR14
Great all around performance and best choice for mildly modified
L99 Camaro applications with AFM enabled.
Hyd.
Hyd.
1800 to 6700
689-422-13
270PIIHR15
Outstanding top end power in modified L99 style applications, w/o
sacrificing low end if properly programmed.
Hyd.
Hyd.
2000 to 6900
689-423-13
274PIIHR16
Applications / Camshafts
Camshaft
Part
Number
Cam Grind
Number
Advertised
In.
Ex.
Valve Lift
@ .050"
In.
Ex.
W/ 1.7 Rocker
In.
Ex.
Lobe
Sep.
Angle
XFI AFM Hydraulic Roller Camshafts
278 D 290 D 216 D 228 D .500 D .500 D 114В°
266 N 278 N 214 N 226 N .500 N .500 N 114В°
282 D 294 D 220 D 232 D .500 D .500 D 115В°
270 N 282 N 218 N 230 N .500 N .500 N 115В°
286 D 298 D 224 D 236 D .500 D .500 D 116В°
274 N 286 N 222 N 234 N .500 N .500 N 116В°
It is not recommended to use synthetic oil for LS engine break-in.
Not all COMP Cams part numbered LS camshafts are
listed here. See the COMP Cams Master Reference
Guide or visit compcams.com for a complete listing.
72
LS Performance
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