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COMP Cams SK11-451-8 Xtreme Marine Hydraulic Roller Cam 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

SK11-451-8
4 reviews
Sale Price

$1,309.95

Estimated ship date Thursday, November 19

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Product Details

The COMP Cams SK11-451-8 Xtreme Marine camshaft kit delivers enhanced performance for Chevrolet Big Block 396-454 cubic inch engines operating in marine applications. This hydraulic roller cam features 230/236 duration specs optimized for mid-range torque and reliable power in boat applications where consistent performance and durability are critical.

Kit Includes:

  • Hydraulic roller camshaft with 230/236 duration specification
  • Hydraulic roller lifters matched to camshaft profile
  • Timing chain set for precise valve timing
  • Assembly lube for proper break-in procedure
  • Installation instructions and COMP Cams decals

Designed specifically for marine environments, this Xtreme Marine series cam kit addresses the unique demands of boat engines including extended periods at constant RPM, higher operating temperatures, and exposure to moisture. The hydraulic roller design reduces friction and wear compared to flat tappet cams while providing quieter operation and extended service life. This SK-Kit (Small Kit) configuration includes all essential components needed for camshaft installation, though additional valve train components like pushrods, springs, and retainers should be verified for compatibility with this cam profile.

Compatible with Chevrolet Big Block V8 engines in the 396, 402, 427, and 454 cubic inch displacement range commonly found in performance marine applications.

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 Intake Duration

284

Basic Operating RPM Range

2,200-5,800

Exhaust Valve Lift

0.547

Kit Type

SK-Kit - Small Kit

Camshaft Material

Austempered Ductile Iron

Camshaft Series

Xtreme Marine

AMAZON ASIN

B001GF7IBC

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

236

Intake Duration at .050 Inch Lift

230

Cam Type

Hydraulic Roller

Lifters Included

Yes

Retainers Included

No

Usage

Marine

Timing Chain and Gears Included

Yes

Advertised Exhaust Duration

290

Intake Valve Lift

0.547

Valve Stem Seals Included

No

Pushrods Included

No

Engine Family

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

best price - better than Summit Racing, and you have it in stock!

product just as described, received in 3 days

I paid for 2nd day shipping and 5 days later they were shipped out. So, I should receive my rotors in a full week from when I paid for 2 day shipping. I called customer service and they discounted the shipping rate to ground service. At least they were polite and helpful in the phone.

Good prices and easy ordering process (order #18003). The only issue that I had was after placing the order, completing the entire process, I received three emails stating that "We noticed that you started checking out on our site, but didn't quite finish the process". After calling customer service, they ensured me that the order was complete. Since then, I receive the same email(3 emails at a time) on a daily basis. Just a little annoying, but easy enough to delete.

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