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COMP Cams 11-870-11 Drag Race Hydraulic Roller Camshaft 260/270 BBC 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

11-870-11
12 reviews
Sale Price

$528.95

Estimated ship date Friday, November 20

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Product Details

The COMP Cams 11-870-11 is a high-performance hydraulic roller camshaft engineered specifically for drag racing applications in Chevrolet Big Block engines (396-454 cubic inches). This camshaft delivers aggressive performance characteristics with a 260/270 duration split, designed to maximize top-end power while maintaining excellent mid-range torque for serious street/strip and dedicated race builds.

Key Specifications:

  • Advertised Duration: 260° intake / 270° exhaust
  • Hydraulic roller design for reduced friction and improved valve control
  • Optimized for Chevrolet Big Block 396, 427, and 454 engines
  • Drag race profile for maximum acceleration and quarter-mile performance
  • Compatible with factory roller blocks and aftermarket roller conversions

Performance Features:

  • Hydraulic roller lifters eliminate the need for constant valve lash adjustment
  • Aggressive lobe profiles deliver strong power from mid-range through high RPM
  • Designed to work with aftermarket cylinder heads and intake systems
  • Excellent choice for street/strip cars and weekend racers

This camshaft is ideal for enthusiasts building high-performance BBC engines who want the convenience of hydraulic lifters combined with race-proven performance. Requires appropriate valvetrain components, springs, and tuning to achieve optimal results. COMP Cams recommends verifying piston-to-valve clearance during installation.

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

325

Advertised Intake Duration

313

Basic Operating RPM Range

3,800-6,800

Exhaust Valve Lift

0.659

Intake Valve Lift

0.676

Intake Duration at .050 Inch Lift

260

Grind Number

313QNHR-8

Camshaft Series

Drag Race

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

Lifter Type

Hydraulic Roller

Cam Type

Hydraulic Roller

Camshaft Material

Billet Steel

LOBE SEPARATION

108

Exhaust Duration at .050 inch Lift

270

Engine Family

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

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