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COMP Cams 54-457-11 LSR Cathedral Port Hydraulic Roller Camshaft Duration GM LS - 223/231

(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)

Part of: COMP Cams LSR Cathedral Port Hydraulic Roller Camshaft Duration GM LS

Other options in this family: COMP Cams 54-459-11 COMP Cams 54-463-11 COMP Cams 54-464-11

Manufacturer

Picture for manufacturer COMP Cams

Part Number

54-457-11
12 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 54-457-11 LSR (Xtreme Energy) hydraulic roller camshaft is engineered specifically for GM LS Gen III/IV engines with cathedral port cylinder heads. This performance camshaft delivers an aggressive idle with excellent power characteristics throughout the RPM range, making it ideal for street/strip applications.

Camshaft Specifications:

  • Advertised Duration: 223° Intake / 231° Exhaust
  • Duration at .050": able to provide broader power without specific lobe separation angle data
  • Hydraulic roller design for reduced friction and improved durability
  • Cathedral port configuration for Gen III/IV LS engines (4.8L, 5.3L, 5.7L, 6.0L, 6.2L)
  • Designed for use with factory or aftermarket hydraulic roller lifters
  • Requires valve spring upgrade for proper operation

Performance Characteristics:

  • Lopey idle quality with strong mid-range to top-end power
  • Optimized for street performance and weekend racing applications
  • Compatible with stock fuel injection and engine management systems
  • Excellent power gains over stock camshaft profiles

This camshaft is part of COMP Cams' LSR (Xtreme Energy) series, designed to maximize performance in LS-platform engines. Professional installation recommended along with proper valve train components including upgraded valve springs, retainers, and pushrods to match camshaft specifications.

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

Basic Operating RPM Range

1,700-6,800

Engine Family

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

Intake Valve Lift

0.61

Exhaust Valve Lift

0.617

Intake Duration at .050 Inch Lift

223

Grind Number

273Lr HR12

MSE Process Video Link

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

Camshaft Series

LSR Cathedral Port Small Displacement/Max Torque

AMAZON ASIN

B002EE2GA2

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

273

Camshaft Gear Attachment

3-Bolt

Lifter Type

Hydraulic Roller

Exhaust Duration at .050 inch Lift

231

Cam Type

Hydraulic Roller

Camshaft Material

Billet Steel

Advertised Exhaust Duration

281

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Ordered on Saturday received Tuesday

Ease of use

great product

Great customer service and prompt shipping

I love how you use amazon payments. It makes everything super easy.

What a great company. 1st time buyer and very happy with Price, service, and shipping. Answered emails personally vs. a computer response. A++++ Will buy from in the future.

Awsome service and prices,Thanks alot

The item was perfect just like from the store and shipped berry fast!!<br><br>Lower price than eBay or Amazon. <br><br>Will recommend to friends.

lowest price I could find ANYWHERE. Website needs some work (login screen appears to be asking you to login again after you enter account info).

Very good company! Shipped out product very fast!!! I can say i will use them again

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