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COMP Cams 54-456-11 LSR Cathedral Port Hydraulic Roller Camshaft GM LS - 219/227

(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

54-456-11
4 reviews
Sale Price

$404.95

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The COMP Cams 54-456-11 is a high-performance hydraulic roller camshaft designed specifically for GM LS Gen III/IV cathedral port engines. This LSR (LS-Ready) series camshaft delivers an aggressive profile with 219° intake duration and 227° exhaust duration at 0.050" lift, providing enhanced mid-range to top-end power while maintaining excellent drivability characteristics.

Key Features:

  • Hydraulic roller design for reduced friction and increased valve control
  • Cathedral port specification optimized for LS1, LS2, and LS6 engines
  • 219° intake / 227° exhaust duration at 0.050" lift
  • Engineered for street/strip performance applications
  • Compatible with stock valvetrain components and hydraulic roller lifters
  • Provides broad powerband with strong mid-range torque
  • Ideal for vehicles with headers, intake, and mild compression increases

This camshaft is an excellent choice for enthusiasts looking to upgrade their GM LS engine with a proven performance profile. The hydraulic roller design ensures reliable operation with reduced maintenance compared to solid roller alternatives, while still delivering substantial power gains over stock. Compatible with GM Gen III/IV LS engines featuring cathedral port cylinder heads.

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 Exhaust Duration

277

Basic Operating RPM Range

1,500-6,700

Engine Family

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

Intake Valve Lift

0.607

Exhaust Valve Lift

0.614

Intake Duration at .050 Inch Lift

219

Grind Number

269Lr HR12

MSE Process Video Link

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

Camshaft Series

LSR Cathedral Port Small Displacement/Max Torque

AMAZON ASIN

B001P265SS

Assembly Lubricant Included

No

Lifters Included

No

LOBE SEPARATION

112

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.

Advertised Intake Duration

269

Camshaft Gear Attachment

3-Bolt

Lifter Type

Hydraulic Roller

Cam Type

Hydraulic Roller

Camshaft Material

Billet Steel

Exhaust Duration at .050 inch Lift

227

I paid for 2nd day shipping and 5 days later they were shipped out. So, I should receive my rotors in a full week from when I paid for 2 day shipping. I called customer service and they discounted the shipping rate to ground service. At least they were polite and helpful in the phone.

Easy

By far the lowest price i've seen on the web for what i have been trying to get, the Injen SRI for my juke. Great price fast shipping! Ill buy all my car stuff here from now on.

Easy order placement, fast shipment

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