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COMP Cams 54-502-11 XFI Solid Roller Camshaft GM LS Gen III/IV - 251/256

(Chevrolet Silverado 1500 1999-2013, Suburban 1500 2000-14, Camaro 1998-2002, 2010-16, Corvette 1997-2013, Silverado 2500 HD 2010-19 + 55 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

54-502-11
10 reviews
Sale Price

$482.19

Estimated ship date Tuesday, November 24

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Product Details

The COMP Cams 54-502-11 XFI camshaft is a high-performance solid roller camshaft designed specifically for GM LS Gen III and Gen IV engines. This camshaft features an aggressive 251/256 duration profile that delivers substantial power gains across the RPM range, making it an excellent choice for serious street/strip applications and dedicated race engines.

Key Features:

  • Solid roller design eliminates hydraulic lifter limitations for extreme RPM capability
  • 251° intake / 256° exhaust duration at 0.050" lift provides aggressive performance characteristics
  • Precision-engineered lobe profiles optimized for LS engine architecture
  • Manufactured from premium core materials with advanced heat treatment for maximum durability
  • Requires aftermarket valve springs, pushrods, and proper valve train components
  • Compatible with GM LS1, LS2, LS3, LS6, LS7, and other Gen III/IV small block engines

This camshaft is designed for engines with upgraded valve train components and is best suited for racing applications or high-performance street vehicles where idle quality is secondary to power production. Professional installation and proper break-in procedures are recommended to ensure optimal performance and longevity.

Products specifications

Fits

Chevrolet Silverado 1500 1999-2013, Suburban 1500 2000-14, Camaro 1998-2002, 2010-16, Corvette 1997-2013, Silverado 2500 HD 2010-19, Tahoe 2000-14, Impala 2006-09, Colorado 2009-12, Trailblazer 2006-08, Caprice 2011-16 + 50 more models

Advertised Exhaust Duration

293

Advertised Intake Duration

286

Basic Operating RPM Range

2,400-7,000

Grind Number

XFI286R113

Engine Family

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

Exhaust Valve Lift

0.655

Intake Valve Lift

0.66

Intake Duration at .050 Inch Lift

251

MSE Process Video Link

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

Camshaft Series

XFI

AMAZON ASIN

B001QZQ430

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

Cam Type

Solid Roller

Camshaft Material

Billet Steel

Exhaust Duration at .050 inch Lift

256

Lifter Type

Solid Roller

I had not shopped at Autoplicity before this purchase. Everything worked out great - product was delivered very quickly and exactly what I ordered. Thank you Autoplicity.

I was very impressed at the timely fashion our order was shipped. I will be shopping with Autoplicity in the future.

great service. Been looking for this trounce product for over a year. best hand cleaner i have ever used. makes the orange stuf seem like using just water.

I ordered my K&N cold air intake order number 17133<br>From autoplicity for almost half price compared to other sites online. I will continue my purchases here n stop my searches elsewhere. And delivery time is fast!

Great Price! Fast Shipping!

Lowest price for my product anywhere, friendly service, and super fast shipping. Will do business with again! A++++

Great service, awesome prices, incredibly fast shipping. A++ I would absolutely suggest you to my friends and family

Easy ordering

Quick and efficient, Thank You!

The ordering process went really smoothly. Got my ordering info e-mailed smartly and was able to track the order easily. Looking forward to using my item as soon as it gets here!

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