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COMP Cams 11-851-9 Oval Track Solid Roller Camshaft Big Block Chevy - 396-454

(Chevrolet Camaro 1967-72, Corvette 1967-74, Impala 1967-76, Malibu 1967, 1973-75, C1500 1990-93, Chevelle 1967-73, Blazer 1973-74 + 105 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

11-851-9
4 reviews
Sale Price

$456.29

Estimated ship date Wednesday, November 25

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Product Details

The COMP Cams 11-851-9 is a high-performance solid roller camshaft specifically designed for oval track racing applications in Chevrolet Big Block engines from 396 to 454 cubic inches. This camshaft delivers aggressive performance characteristics with a 261/270 duration split, optimized for circle track and oval racing where mid-range to top-end power is critical.

Key Specifications:

  • Intake Duration: 261 degrees
  • Exhaust Duration: 270 degrees
  • Solid roller lifter design for maximum valve control and reduced friction
  • Engineered specifically for oval track and circle track racing applications
  • Compatible with Chevrolet Big Block 396, 402, 427, and 454 engines

Performance Benefits:

  • Optimized duration split provides excellent mid-range torque and top-end horsepower
  • Solid roller design eliminates lifter pump-up at high RPM
  • Purpose-built lobe profiles for sustained high-RPM operation
  • Designed to work with high-ratio rocker arms and upgraded valvetrain components

This camshaft requires solid roller lifters, heavier valve springs, and proper valvetrain geometry setup. Professional installation and proper break-in procedures are essential for optimal performance and longevity. Ideal for serious oval track racers seeking maximum performance from their big block Chevrolet powerplant.

Products specifications

Fits

Chevrolet Camaro 1967-72, Corvette 1967-74, Impala 1967-76, Malibu 1967, 1973-75, C1500 1990-93, Chevelle 1967-73, Blazer 1973-74, C10 Pickup 1968-74, Caprice 1967-76, C10 1975-80, El Camino 1967-75, Monte Carlo 1970-75 + 100 more models

Advertised Exhaust Duration

303

Advertised Intake Duration

294

Basic Operating RPM Range

3,600-6,600

Grind Number

294RX-8

Usage

Strip

Intake Valve Lift

0.734

Exhaust Valve Lift

0.737

Intake Duration at .050 Inch Lift

261

Camshaft Series

Oval Track Xtreme RX

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

Cam Type

Solid Roller

AMAZON ASIN

B001G7GQ22

Camshaft Material

Billet Steel

LOBE SEPARATION

108

Exhaust Duration at .050 inch Lift

270

Lifter Type

Solid Roller

Engine Family

Chevrolet 396-454 c.i. 8 Cylinder (1967-1996)

Autoplicity was quick and easy to order from. I found just what I was looking for in absolutely no time at all, plus it was shipped extremely quickly. I would definitely order from this site/company again.<br><br>Thanks!

The ordering experience was painless. Good price too.

Fast shipping, product was excellent .

Smooth transaction, very pleased

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