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COMP Cams CL11-744-9 Marine 260/270 Solid Roller Camshaft and Lifter Kit for Chevy 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

CL11-744-9
6 reviews
Sale Price

$936.12

Estimated ship date Tuesday, November 17

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Product Details

The COMP Cams CL11-744-9 Marine Solid Roller Camshaft and Lifter Kit is engineered specifically for high-performance marine applications requiring aggressive power delivery and reliable operation in demanding wet exhaust environments. This complete cam and lifter kit is designed for Chevrolet Big Block 396-454 engines and delivers exceptional performance for jet boats with B impellers, flat-bottom boats, hydros, river race boats, and bracket racing applications.

Performance Specifications:

  • Advertised Duration: 295°/305° (intake/exhaust)
  • Valve Lift: 0.670" intake / 0.670" exhaust
  • Optimal RPM Range: 4,200 to 7,000 RPM
  • Solid roller lifter design for maximum durability and high-RPM capability

Complete Kit Includes:

  • 11-744-9 Marine solid roller camshaft
  • Endure-X solid roller lifter set (16 lifters)
  • Assembly lube for proper break-in
  • Installation instructions
  • COMP Cams decals

Key Features:

  • Aggressive lobe profile delivers superior throttle response and top-end horsepower
  • Engineered to overcome wet exhaust system back pressure common in marine applications
  • Wide powerband helps boats get on plane quickly while maximizing horsepower
  • Solid roller design ensures durability and allows higher RPM operation
  • Easy on valvetrain components compared to more extreme racing profiles

Installation Requirements:

  • Requires thrust button and wear plate (not included)
  • Requires aftermarket distributor gear
  • Designed for use with performance valve springs and adjustable rocker arms

This kit delivers the aggressive performance and reliability demanded by serious marine enthusiasts while maintaining the durability needed for extended operation in harsh marine environments. Ideal for racers and performance boaters seeking maximum power output from their big block Chevrolet marine engine.

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

305

Advertised Intake Duration

295

Kit Type

Cl-Kit - Cam and Lifter Kit

Exhaust Valve Lift

0.67

Intake Valve Lift

0.67

Intake Duration at .050 Inch Lift

262

Basic Operating RPM Range

4,200-7000

Camshaft Series

Marine

AMAZON ASIN

B002EE8VN8

Assembly Lubricant 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.

Gaskets Included

No

Camshaft Gear Attachment

3-Bolt

Locks Included

No

Cam Type

Solid Roller

Lifters Included

Yes

Retainers Included

No

Timing Chain and Gears Included

No

Usage

Marine

Camshaft Material

Billet Steel

Valve Stem Seals Included

No

Exhaust Duration at .050 inch Lift

272

Lifter Type

Solid Roller

Engine Family

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

Great price, great service, A+

Fast shipping, great product. Nothing more needs to be said.

They had the parts I needed at the best price. I needed some questions answered to make sure I was ordering the right parts for a 4 year old car and they were very helpful when I called.

Easy shopping experience

Ordered a Trac-Bar from Autoplicity, and didn't have any problems. WILL be back!

Quick and easy to use website. The part doesn't fit my 2005 Malibu even though the website says it does - have to return the part.

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