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COMP Cams 146-461-11 LSR Hydraulic Roller Camshaft Duration GM Gen IV - 239/255

(Chevrolet Suburban 1500 2010-13, Camaro 1998-2002, 2010-16, Corvette 1997-2004, 2008-13, Colorado 2009, Silverado 2500 2006-09, 2011-14 + 11 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

146-461-11
8 reviews
Sale Price

$482.19

Estimated ship date Wednesday, November 25

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Product Details

The COMP Cams LSR (LSx Retro-Fit) series hydraulic roller camshaft is engineered specifically for GM Gen IV LS engines without Variable Valve Timing (VVT) or Active Fuel Management (AFM). This camshaft delivers a performance-oriented profile with 239 degrees of intake duration and 255 degrees of exhaust duration, providing an aggressive idle and strong mid-range to top-end power gains.

Key Features:

  • Hydraulic roller cam design for reduced friction and improved durability
  • 239°/255° advertised duration provides excellent throttle response and power
  • Specifically designed for GM Gen IV LS engines without VVT or AFM systems
  • LSR series profile optimized for retro-fit applications
  • Compatible with factory hydraulic roller lifters
  • Requires performance valvesprings and proper valvetrain components

This camshaft is ideal for street/strip applications and performance builds seeking increased horsepower and torque while maintaining streetability. Professional installation and proper valvetrain setup are recommended to ensure optimal performance and engine longevity.

Products specifications

Fits

Chevrolet Suburban 1500 2010-13, Camaro 1998-2002, 2010-16, Corvette 1997-2004, 2008-13, Colorado 2009, Silverado 2500 2006-09, 2011-14, Silverado 3500 2008-13, 2015-16, SS 2014-17, Express Cargo 2010-16, Express Pasajeros 2010-16 + 7 more models

Grind Number

289LRR HR14

Usage

Strip

Engine Family

GM LS2/LS3 GEN IV Single-Bolt w/o VVT and AFM 8 Cylinder (2007-2015)

Camshaft Series

LSR

Assembly Lubricant Included

No

Camshaft Gear Attachment

1-Bolt

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.

LOBE SEPARATION

114

Camshaft Material

Billet Steel

Great price for the item. Both internet and phone conversations were quick and knowledgeable.

the prices were great lowest i found on the net and the shipping is fast

Great price, good e-mail communication and fast shipping. Positive experience with Autoplicity so far.

My experience with autoplicity was great. Great selection and service. Fast shipping. Will definitely use them again.

Found the best price at Autoplicity on my cold air intake. Quick turn-around time and inexpensive shipping. I'll definitely be back.

Great pricing on almost every product! Quick process and fast shipping! Will definitely order from Autoplicity again in the future.

This is an excellent site it has many things that most other sites don't carry. I will use this site first before any other every time for now on.

quick and polite service will deal with again

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