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COMP Cams 11-676-4 Xtreme Energy Solid Flat Tappet Camshaft 230/236 Chevy Big Block

(Chevrolet Camaro 1967-72, Corvette 1966-74, Impala 1965-76, Malibu 1966-67, 1973-75, C1500 1990-93, Chevelle 1965-73, Blazer 1973-74 + 106 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

11-676-4
10 reviews
Sale Price

$309.95

2 left at this price

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Product Details

The COMP Cams Xtreme Energy 11-676-4 is a solid flat tappet camshaft designed specifically for Chevrolet Big Block engines (396-454 cubic inches). This performance camshaft delivers an aggressive idle and strong mid-range to top-end power, making it ideal for street/strip applications where maximum performance is the priority.

Camshaft Specifications:

  • Advertised Duration: 280° Intake / 286° Exhaust
  • Duration at .050": 230° Intake / 236° Exhaust
  • Valve Lift (with 1.7 rocker ratio): .512" Intake / .519" Exhaust
  • Lobe Separation Angle: 110°
  • Valve Lash: .024" Intake / .026" Exhaust
  • RPM Range: 2,000-6,000 RPM

Key Features:

  • Xtreme Energy lobe design provides maximum power with excellent durability
  • Solid flat tappet design for high-performance applications
  • Aggressive lope idle with strong throttle response
  • Compatible with stock to modified cylinder heads and compression ratios of 9.5:1 or higher
  • Requires performance valve springs, retainers, and pushrods (sold separately)
  • Requires proper break-in with COMP Cams break-in oil additive

This camshaft is best suited for manual transmission vehicles with 3.73:1 or steeper rear gears and a 2,500+ RPM stall converter for automatic transmissions. Professional installation and tuning recommended for optimal performance.

Products specifications

Fits

Chevrolet Camaro 1967-72, Corvette 1966-74, Impala 1965-76, Malibu 1966-67, 1973-75, C1500 1990-93, Chevelle 1965-73, Blazer 1973-74, C10 Pickup 1968-80, Caprice 1966-76, C10 1975-81, El Camino 1966-75, Monte Carlo 1970-75 + 101 more models

Basic Operating RPM Range

1,600-6,000

Grind Number

XS268S

Lifter Type

Solid Flat Tappet

Intake Valve Lift

0.553

Exhaust Valve Lift

0.568

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL11-676-4

K-Kit Upgrade

K11-676-4

SK-Kit Upgrade

SK11-676-4

Cam Type

Solid Flat Tappet

Usage

Street/Performance

Assembly Lubricant Included

Yes

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.

Advertised Intake Duration

268

Camshaft Gear Attachment

3-Bolt

Exhaust Duration at .050 inch Lift

236

Intake Duration at .050 Inch Lift

230

Advertised Exhaust Duration

274

Engine Family

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

AMAZON ASIN

B000P5933K

Camshaft Series

Xtreme Energy

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