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COMP Cams SK11-252-4 Xtreme Marine Hydraulic Flat Camshaft 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

SK11-252-4
9 reviews
Sale Price

$461.95

Estimated ship date Friday, November 20

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Product Details

The COMP Cams SK11-252-4 Xtreme Marine camshaft kit is engineered specifically for Chevrolet Big Block 396-454 cubic inch marine applications. This hydraulic flat tappet camshaft delivers a 254/264 duration profile designed to produce strong mid-range torque and reliable power for marine environments where durability and performance are critical.

Complete SK-Kit Includes:

  • Xtreme Marine hydraulic flat tappet camshaft with 254/264 duration
  • Hydraulic lifter set matched to camshaft specifications
  • Timing chain set for precise valve timing
  • Assembly lube for proper break-in procedure
  • Installation instructions and COMP Cams decals

The Xtreme Marine series camshafts feature specialized profiles optimized for marine duty cycles, accounting for the unique demands of constant-RPM operation, salt water exposure concerns, and the need for reliable performance under load. The hydraulic flat tappet design provides quiet operation and requires minimal maintenance, making it ideal for recreational and light commercial marine applications. This camshaft delivers improved throttle response and enhanced torque output throughout the powerband compared to stock profiles, while maintaining excellent durability and longevity in harsh marine conditions.

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

SK-Kit - Small Kit

Exhaust Valve Lift

0.578

Intake 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

B001GF3MWG

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

Usage

Marine

Timing Chain and Gears Included

Yes

Valve Stem Seals Included

No

Exhaust Duration at .050 inch Lift

264

Pushrods Included

No

Engine Family

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

Cheapest price anywhere, best shipping rate and shipped fast! Bookmarked for all future purchases!

Great price, great service, A+

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

great price and customer service

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.

Finding my parts on this website was incredibly easy. The prices were the lowest around and I was kept up to date about the estimated delivery date. Order #19058

I have searched the internet for the best pricing on auto accessories and ended up at Autoplicity. I tried everything to negotiate prices with some supplies and still got the best pricing usins Autoplicity without any hassles or delays. My invoice number 9314 shows that I got a great deal thanks to Autoplicity. I will be a returning customer for my future purchases.

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