My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

COMP Cams 54-467-11 LSR Roots Blower Hydraulic Roller Camshaft GM LS - 239/243

(Chevrolet Silverado 1500 1999-2013, Suburban 1500 2000-14, Camaro 2010-16, Corvette 2005-13, Silverado 2500 HD 2010-19, Tahoe 2000-14 + 52 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

54-467-11
6 reviews
Sale Price

$500.95

Estimated ship date Tuesday, November 24

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The COMP Cams 54-467-11 is a specialized hydraulic roller camshaft engineered specifically for GM LS Gen III/IV engines equipped with Roots-style superchargers. This LSR (LS Roots) camshaft features aggressive 239/243 duration specifications optimized to work with positive displacement blowers, delivering strong low-end torque and exceptional mid-range power while maintaining excellent drivability.

Key Specifications:

  • Duration: 239° intake / 243° exhaust (at .050" lift)
  • Hydraulic roller design for reliable operation and reduced valvetrain wear
  • Optimized lobe profiles specifically designed for Roots-style supercharger applications
  • Compatible with GM LS Gen III and Gen IV engines (LS1, LS2, LS3, LS6, LQ4, LQ9, L76, L92, etc.)
  • Requires compatible hydraulic roller lifters, pushrods, and valvetrain components

Performance Benefits:

  • Maximizes boost efficiency with supercharger-specific timing events
  • Delivers broad, usable powerband ideal for street/strip and hot rod applications
  • Maintains excellent idle quality and vacuum for power brakes
  • Proven profile used in thousands of successful forced induction builds

This camshaft is part of COMP Cams' extensive LSR series, representing decades of experience in forced induction camshaft design. The hydraulic roller design offers exceptional durability and requires no valvetrain adjustments, making it an excellent choice for enthusiasts seeking reliable, powerful performance from their supercharged LS engine.

Products specifications

Fits

Chevrolet Silverado 1500 1999-2013, Suburban 1500 2000-14, Camaro 2010-16, Corvette 2005-13, Silverado 2500 HD 2010-19, Tahoe 2000-14, Impala 2006-09, Colorado 2009-12, Trailblazer 2006-08, Caprice 2011-16, Monte Carlo 2006-07 + 47 more models

Advertised Exhaust Duration

293

Basic Operating RPM Range

2,400-7,000

Engine Family

GM LS GEN III/IV 3-Bolt 8 Cylinder (1997-2015)

Exhaust Valve Lift

0.624

Intake Valve Lift

0.624

Grind Number

289LRB HR14

MSE Process Video Link

https://www.youtube.com/watch?v=hTyIQxrPCCI

Camshaft Series

LSR Roots Blower

AMAZON ASIN

B002EE6C20

Assembly Lubricant Included

No

Lifters Included

No

Valve Springs Required

Yes

Prop 65

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for On-Road Vehicles?

No

C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?

Yes, but must be a race/competition only vehicle.

C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

Camshaft Gear Attachment

3-Bolt

LOBE SEPARATION

114

Lifter Type

Hydraulic Roller

Exhaust Duration at .050 inch Lift

243

Intake Duration at .050 Inch Lift

239

Cam Type

Hydraulic Roller

Camshaft Material

Billet Steel

Advertised Intake Duration

289

Great quality and and I received very quickly.

best price I can find on a motive brake bleeder anywhere. shipped same day - now that's great service!

best price on the net, GREAT communication.....

good

best price i have seen while i am searching in the interner :))

Great prices and quick shipping. Thanks!

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy