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COMP Cams CL12-240-4 Xtreme Marine Hydraulic Flat Cam and Lifter Kit for Chevrolet Small Block

(GMC G2500 1979-95, Yukon 1992-95, K1500 1979-86, 1988-95, C1500 1979-86, 1988-95, K2500 1979-86, 1988-95, Jimmy 1970-91 + 238 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

CL12-240-4
7 reviews
Sale Price

$397.95

In Stock (6)

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Usually delivered within 2 days

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Product Details

The COMP Cams Xtreme Marine CL12-240-4 is a complete camshaft and lifter kit engineered specifically for small block Chevrolet marine applications. This hydraulic flat tappet camshaft delivers 226° intake duration and 236° exhaust duration, providing enhanced mid-range torque and improved throttle response ideal for marine environments where reliability and performance are critical.

Key Features:

  • Hydraulic flat tappet design for quiet, reliable operation in marine conditions
  • 226° intake / 236° exhaust duration for strong mid-range power delivery
  • Complete kit includes camshaft, hydraulic lifters, assembly lube, decals, and detailed installation instructions
  • Engineered specifically for Chevrolet small block marine engines
  • Xtreme Marine series offers corrosion-resistant materials for saltwater and freshwater use
  • Improved throttle response and acceleration compared to stock camshafts

This complete kit provides everything needed for a professional camshaft installation, eliminating the need to source individual components. The Xtreme Marine series is designed to withstand the demanding marine environment while delivering consistent performance and durability. Ideal for boat owners looking to upgrade performance or rebuild their small block Chevy marine engine.

Products specifications

Fits

GMC G2500 1979-95, Yukon 1992-95, K1500 1979-86, 1988-95, C1500 1979-86, 1988-95, K2500 1979-86, 1988-95, Jimmy 1970-91, C3500 1979-86, 1988-95, K2500 Suburban 1979-86, 1992-95, K3500 1979-86, 1988-95, C15/C1500 Pickup 1967-74 + 234 more models

Basic Operating RPM Range

1,600-5,800

Cam Type

Hydraulic Flat Tappet

Kit Type

Cl-Kit - Cam and Lifter Kit

Intake Valve Lift

0.48

Exhaust Valve Lift

0.489

Camshaft Material

Cast Iron

SK-Kit Upgrade

SK12-240-4

Camshaft Series

Xtreme Marine

AMAZON ASIN

B001GERHZU

Assembly Lubricant Included

Yes

LOBE SEPARATION

112

Valve Springs Required

Yes

Lifter Type

Hydraulic Flat Tappet

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

Advertised Intake Duration

270

Camshaft Gear Attachment

3-Bolt

Locks Included

No

Exhaust Duration at .050 inch Lift

236

Lifters Included

Yes

Retainers Included

No

Timing Chain and Gears Included

No

Usage

Marine

Advertised Exhaust Duration

286

Intake Duration at .050 Inch Lift

226

Engine Family

Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)

Valve Stem Seals Included

No

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