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COMP Cams 54-458-11 LSR Cathedral Port Hydraulic Roller Camshaft GM LS - 227/235

(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

54-458-11
13 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 54-458-11 is a high-performance hydraulic roller camshaft designed specifically for GM LS Gen III/IV engines with cathedral port cylinder heads. This LSR (Xtreme Energy) series camshaft delivers excellent mid-range to top-end power, making it ideal for street/strip applications and performance street builds.

Camshaft Specifications:

  • Advertised Duration: 276°/282° (Intake/Exhaust)
  • Duration @ .050": 227°/235° (Intake/Exhaust)
  • Valve Lift: .549"/.525" (Intake/Exhaust) with 1.7 rocker ratio
  • Lobe Separation Angle: 112°
  • Recommended RPM Range: 1,800-6,200 RPM
  • Recommended Valve Springs: COMP Cams 26918 or equivalent

Key Features:

  • Designed for cathedral port cylinder heads (243, 799, 5.3L/6.0L truck heads)
  • Hydraulic roller design for excellent durability and quiet operation
  • Aggressive profile produces strong torque and horsepower gains
  • Works with factory fuel injection and computer controls
  • Compatible with stock valve springs in some applications (verify valve spring requirements)

This camshaft is an excellent choice for performance enthusiasts looking to maximize power output from their LS engine while maintaining good street manners. Professional installation and proper break-in procedures are recommended. May require aftermarket valve springs, pushrods, and computer tuning for optimal performance.

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

285

Basic Operating RPM Range

1,900-7,000

Engine Family

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

Intake Valve Lift

0.614

Exhaust Valve Lift

0.621

Grind Number

277Lr HR-13

MSE Process Video Link

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

Camshaft Series

LSR Cathedral Port Small Displacement/Max Torque

AMAZON ASIN

B001P22TOM

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

113

Lifter Type

Hydraulic Roller

Exhaust Duration at .050 inch Lift

235

Intake Duration at .050 Inch Lift

227

Cam Type

Hydraulic Roller

Camshaft Material

Billet Steel

Advertised Intake Duration

277

Cool

Best Price, Best Shipping

Good so far.

Great price overall, good construction, good finish, appears to be well worth the money. The shipping was fast enough for us. No complaints. I am waiting on the arrival of another truck for our fleet. I will be ordering another one of these items for it. Thanks and happy new year.

Thank you

Best price I could find + free ground shipping. I will return!

product just as described, received in 3 days

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.

My first order did not include all parts. I'm ordering a different part number now. The seller is giving me a discount due to this inconvenience. We will see how it goes.

Ordered 4 race ramps flatstoppers for winter storage of my Dodge Viper. Product prevents flat spots on auto tires that are stored more than 30 days. Order process was extremely easy, product was promptly shipped. I'll definately do business with Autoplicity in the future.

Great prices will shop here again.

Excellent on-line merchant with outstanding customer service and the best prices on equipment and shipping. Highly reccomended!

Good prices and easy ordering process (order #18003). The only issue that I had was after placing the order, completing the entire process, I received three emails stating that "We noticed that you started checking out on our site, but didn't quite finish the process". After calling customer service, they ensured me that the order was complete. Since then, I receive the same email(3 emails at a time) on a daily basis. Just a little annoying, but easy enough to delete.

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