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COMP Cams 54-453-11 LSR Rectangular Port Hydraulic Roller Camshaft 219/235 Duration GM LS

(Chevrolet Silverado 1500 1999-2013, Silverado 1500 HD 2001-06, Suburban 1500 2000-14, Camaro 2010-16, Corvette 2005-13 + 60 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

54-453-11
6 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 54-453-11 LSR (LS Rectangle) hydraulic roller camshaft is engineered specifically for GM LS Gen III/IV engines with cathedral port cylinder heads. This performance camshaft delivers a balanced combination of increased power and improved throttle response while maintaining excellent street manners and reliability.

Key Specifications:

  • Advertised Duration: 219°/235° (Intake/Exhaust)
  • Hydraulic roller design for reduced friction and wear
  • Designed for rectangular port cathedral head applications
  • Compatible with GM LS Gen III and Gen IV engines
  • Requires matching hydraulic roller lifters and valve springs

This camshaft profile is ideal for street/strip applications where improved mid-range torque and top-end horsepower are desired. The hydraulic roller design eliminates the need for camshaft break-in procedures and provides quieter operation compared to flat tappet designs. The LSR series from COMP Cams is specifically optimized for the LS platform's airflow characteristics and valve train geometry.

Important Notes:

  • Professional installation recommended
  • Valve spring upgrade typically required
  • Computer tuning may be necessary for optimal performance
  • Verify piston-to-valve clearance before installation

Products specifications

Fits

Chevrolet Silverado 1500 1999-2013, Silverado 1500 HD 2001-06, Suburban 1500 2000-14, Camaro 2010-16, Corvette 2005-13, Silverado 2500 HD 2001-06, 2010-19, Tahoe 2000-14, Impala 2006-09, Colorado 2009-12, Trailblazer 2006-08 + 55 more models

Advertised Exhaust Duration

285

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

0.621

Intake Duration at .050 Inch Lift

219

Grind Number

269LrR HR-13

MSE Process Video Link

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

Camshaft Series

LSR Rectangular Port All Out Power

AMAZON ASIN

B005H89UQ0

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.

Advertised Intake Duration

269

Camshaft Gear Attachment

3-Bolt

LOBE SEPARATION

113

Lifter Type

Hydraulic Roller

Exhaust Duration at .050 inch Lift

235

Cam Type

Hydraulic Roller

Camshaft Material

Billet Steel

Usage

Street/Strip

it was one of the most easiest sites to use and the order shipped really quick. will buy from again.

This site is awsome! excellent customer service, lowest rate, Fast shipping!<br><br>I will save this site for my bookmark! %100 must check auto store site.

Great price on name brand parts. Quick shipping. Will use again for my next order of parts.

I got a cargo box from autoplicity. As far as online purchases go to delivery, everything went perfectly. The only comment I have for Autoplicity would be to send out a confirmation email when the purchase is first made. The first communication wasn't until 3 days after I made the purchase.

I entered my discount code 2offtotal and it did not remove 2% of the price. It was less than10 so not a big deal, but it would have been better if it worked.

Best price I could find for the brand new name brand product I ordered. Fast shipping as well.

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