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COMP Cams 11-871-11 Drag Race Hydraulic 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 + 104 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

11-871-11
21 reviews
Sale Price

$542.95

Estimated ship date Friday, November 20

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Product Details

The COMP Cams 11-871-11 Drag Race hydraulic roller camshaft is engineered for maximum power in Big Block Chevrolet 396-454 cubic inch racing applications. This aggressive camshaft features 267/275 degrees of advertised duration, delivering strong mid-range to top-end power ideal for drag racing and dedicated competition engines.

Key Specifications:

  • Advertised Duration: 267°/275° (Intake/Exhaust)
  • Duration @ .050": 223°/231° (Intake/Exhaust)
  • Valve Lift: .510"/.525" (Intake/Exhaust) with 1.7:1 rocker ratio
  • Lobe Separation Angle: 110°
  • Hydraulic roller design for reduced friction and increased reliability
  • Optimized for racing engines with 9.5:1 to 11.0:1 compression ratio

Performance Features:

  • Aggressive profile produces strong horsepower gains from 2,800 to 6,800 RPM
  • Tight lobe separation angle maximizes cylinder pressure and torque
  • Hydraulic roller design eliminates the need for break-in procedures
  • Precision ground on COMP Cams CNC equipment for consistent lobe accuracy
  • Requires aftermarket performance valve springs and matching hydraulic roller lifters

This camshaft is designed for race-only applications and is not intended for street use. Requires a compatible hydraulic roller lifter set, performance valve springs, and proper valvetrain components. Best suited for engines with modified heads, headers, high-stall converters, and rear gear ratios of 4.10:1 or higher.

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 + 99 more models

Advertised Exhaust Duration

329

Advertised Intake Duration

321

Basic Operating RPM Range

4,000-7,000

Exhaust Valve Lift

0.68

Intake Valve Lift

0.68

Intake Duration at .050 Inch Lift

267

Exhaust Duration at .050 inch Lift

275

Grind Number

321QNHR-10

Camshaft Series

Drag Race

Assembly Lubricant Included

No

Lifters Included

No

LOBE SEPARATION

110

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

Lifter Type

Hydraulic Roller

Cam Type

Hydraulic Roller

Camshaft Material

Billet Steel

Engine Family

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

reordering last years part number was a breeze. thank you.

good fast

Thanks

Easy Online Shopping Experience. Fast Delivery.

ya

quick. hope accurate too

Eh

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I appreciate low cost and free shipping option; however, I did not see an expected date for arrival.

Very good prices and quick, easy ordering experience.

quick and easy! had no problems at all

The site was super easy to use and had exactly the product I needed.

Easy ordering process, first time on here and I really like the site! Great prices too!

I have had good experiences so far with Autoplicity.

The process seemed pretty simple to me. Will definitely use again.

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!

Best prices on the internet and fast at getting the product out. Thanks!

Thanks for having the short shifter available !

Came fast and sounds great on my hx easy to install injen rd 1550p

This caliper paint green and cool.

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