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COMP Cams 54-465-11 LSR Cathedral Port Hydraulic Roller Camshaft GM LS - 255/263

(Chevrolet Silverado 1500 1999-2013, Suburban 1500 2000-14, Camaro 2010-16, Corvette 2005-13, Silverado 2500 HD 2010-19, Tahoe 2000-14 + 55 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

54-465-11
9 reviews
Sale Price

$497.95

Estimated ship date Friday, November 20

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Product Details

The COMP Cams 54-465-11 is a high-performance hydraulic roller camshaft designed specifically for GM LS Gen III/IV engines with cathedral port cylinder heads. This LSR (LS Race) series camshaft delivers an aggressive performance profile with 255 degrees of intake duration and 263 degrees of exhaust duration, making it ideal for street/strip applications seeking substantial horsepower and torque gains.

Key Features:

  • Hydraulic roller design for reduced friction and improved durability
  • 255/263 duration profile optimized for cathedral port LS engines
  • Compatible with GM LS Gen III and Gen IV engines (LS1, LS2, LS3, LS6, LQ4, LQ9, LM7, etc.)
  • Precision-ground on COMP Cams' proprietary equipment for exact lobe profiles
  • Designed to work with factory hydraulic roller lifters
  • Requires performance valve springs and supporting valvetrain components

This camshaft is engineered to provide excellent mid-range to top-end power, making it suitable for performance street cars, weekend race vehicles, and modified trucks. The hydraulic roller design maintains quiet operation while delivering race-inspired performance characteristics. Professional installation and proper valvetrain setup are recommended to achieve optimal results.

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 2011-17, Monte Carlo 2006-07 + 50 more models

Advertised Intake Duration

305

Basic Operating RPM Range

2,800-7,200

Engine Family

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

Exhaust Valve Lift

0.624

Intake Valve Lift

0.624

Intake Duration at .050 Inch Lift

255

Exhaust Duration at .050 inch Lift

263

Grind Number

305LRx HR15

MSE Process Video Link

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

Camshaft Series

LSR Cathedral Port Large Displacement

AMAZON ASIN

B002EDYNMC

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

115

Lifter Type

Hydraulic Roller

Cam Type

Hydraulic Roller

Camshaft Material

Billet Steel

Advertised Exhaust Duration

313

Two piston kits, same price. One had free shipping one did not.

Fast and easy .

Everything was delivered on time. It was cheaper to have it shipped to me than to shop anywhere locally. Thank you.

Great service, great prices!!

Shipped quicky and arrived packages well. Item was as described. Very pleased. Thank you.

Great pricing and quick shipping. GREAT

Awsome service and prices,Thanks alot

Just order the 1108 turn over ball for 2010 Super Duty and received it within (5) days. Just can't wait to put it on and start pulling the trailer with my new diessel.

This store had a lot of products more than most other sites I looked at. The order was processed quickley and shiped the next day. I will use them again.

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