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COMP Cams CL11-252-4 Xtreme Marine Hydraulic Flat Cam 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

CL11-252-4
9 reviews
Sale Price

$397.95

Estimated ship date Friday, November 20

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Product Details

The COMP Cams CL11-252-4 Xtreme Marine camshaft and lifter kit is specifically designed for Chevrolet big block engines ranging from 396 to 454 cubic inches. This complete hydraulic flat tappet cam kit delivers enhanced performance with a 254/264 degree duration profile that provides increased mid-range torque and improved throttle response, making it ideal for marine applications where reliability and power delivery are critical.

Key Features:

  • Hydraulic flat tappet camshaft with 254/264 degree advertised duration
  • Complete kit includes camshaft, hydraulic lifters, assembly lube, decals, and detailed installation instructions
  • Xtreme Marine series designed for marine engine environments with enhanced corrosion resistance
  • Optimized for improved low to mid-range power and torque
  • Direct replacement for Chevrolet big block 396, 402, 427, and 454 engines
  • Includes premium assembly lubricant for proper break-in procedures

This kit provides everything needed for a complete camshaft upgrade, delivering improved engine performance while maintaining the reliability required for marine applications. The hydraulic flat tappet design ensures quiet operation and eliminates the need for valve lash adjustments.

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

316

Advertised Intake Duration

298

Cam Type

Hydraulic Flat Tappet

Kit Type

Cl-Kit - Cam and Lifter Kit

Intake Valve Lift

0.575

Exhaust Valve Lift

0.578

Intake Duration at .050 Inch Lift

254

Basic Operating RPM Range

3200-6,800

Camshaft Material

Cast Iron

Camshaft Series

Xtreme Marine

AMAZON ASIN

B001GENQKA

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

Camshaft Gear Attachment

3-Bolt

Locks Included

No

Lifters Included

Yes

Retainers Included

No

Timing Chain and Gears Included

No

Usage

Marine

Valve Stem Seals Included

No

Exhaust Duration at .050 inch Lift

264

Engine Family

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

The site is clear and easy to navigate. With so many places to get what I want online it is easy to make a mistake and buy through a shady site. I was buying an expensive item ($500) and wanted to make sure that I was not going to have issues. I did my research and read many positive reviews before making my purchase through Autoplicity. Autoplicity is as legitimate as they come. Things went very smoothly.

good

Super Fast! Website was easy to user, multiple different payment options (Amazon, Paypal, Credit Card) Got a notification of shipment within 1 hour!

Great service, awesome prices, incredibly fast shipping. A++ I would absolutely suggest you to my friends and family

quick response and unbelievably CHEAP prices.

Excellent service, quick ship. An easy transaction.

Ordered a set of 5 steel wheels, distributor messed up and only sent me 4. 5th wheel is taking a good couple weeks to arrive due to the distributor messing up the shipment. Autoplicity did make things right and I can honestly say now I would recommend them.

- Updated review -<br>Autoplicity.com contacted me after my original review and admitted to making a mistake with my order. They have refunded my shipping and I am happy now.<br><br>- Original review -<br>After 18 days the part finally arrived. The filter appears to have been sent directly from K&N, but I ordered on the 20th of June, yet the packing date that K&N Engineering Inc. shows is July 3rd.

Very pleased with Autoplicity's fast and efficient service. The part I ordered fit and looked great. Will definitely consider Autoplicity for future orders. Thanks.

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