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COMP Cams CL11-456-8 X-Marine 242/248 Hydraulic Roller Cam and Lifter Kit for Chevrolet Big Block 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

CL11-456-8
7 reviews
Sale Price

$1,225.95

Estimated ship date Friday, November 20

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Product Details

The COMP Cams CL11-456-8 X-Marine camshaft and lifter kit is specifically engineered for marine applications with Chevrolet Big Block 396-454 engines. This complete hydraulic roller cam kit delivers 242° intake and 248° exhaust duration, providing improved throttle response and midrange power while maintaining smooth idle characteristics ideal for marine use.

Key Features:

  • Hydraulic roller design for reduced friction and improved durability in marine environments
  • 242°/248° duration profile optimized for torque and reliability
  • Complete kit includes camshaft, hydraulic roller lifters, assembly lube, decals, and installation instructions
  • Engineered specifically for Chevrolet Big Block 396-454 cubic inch engines
  • X-Marine designation indicates marine-specific corrosion-resistant materials and coatings
  • Roller lifters reduce valvetrain wear and parasitic power loss

This cam kit provides everything needed for a complete camshaft upgrade in marine big block Chevy applications. The hydraulic roller design offers the performance benefits of a roller cam with the convenience of self-adjusting hydraulic lifters, making it an excellent choice for marine engines where regular valve adjustments are impractical. The moderate duration specifications ensure strong acceleration and pulling power while maintaining vacuum for power steering and other accessories.

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

Basic Operating RPM Range

2,800-6,200

Kit Type

Cl-Kit - Cam and Lifter Kit

Exhaust Valve Lift

0.566

Intake Valve Lift

0.566

Camshaft Material

Austempered Ductile Iron

Camshaft Series

Xtreme Marine

AMAZON ASIN

B001GEPC0W

Assembly Lubricant Included

No

LOBE SEPARATION

112

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.

Gaskets Included

No

Camshaft Gear Attachment

3-Bolt

Locks Included

No

Lifter Type

Hydraulic Roller

Exhaust Duration at .050 inch Lift

248

Intake Duration at .050 Inch Lift

242

Cam Type

Hydraulic Roller

Lifters Included

Yes

Retainers Included

No

Timing Chain and Gears Included

No

Usage

Marine

Advertised Exhaust Duration

302

Valve Stem Seals Included

No

Advertised Intake Duration

296

Engine Family

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

Great prices. Great live customer service. Very pleased, will definitely order again.

Nice website, easy to order

GREAT SERVICE, FAST SHIPPING, WILL USE AGAIN

Quick.

Excellent service. I called in Monday for a hard to find item which I had ordered from several other online shops who despite saying were In Stock online were not actually in stock at all and the orders were canceled after waiting a week to find out. They had the item in stock as listed on their website and shipped the next day. The price was the cheapest of anyone who actually had the item in stock by a substantial amount.

Excellent business and a pleasure to deal with. Lowest prices on the net and great communication between the business and myself. Will purchase from again!

Lowest prices with quick processing and shipping. Very happy and will shop again!

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