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COMP Cams 11-745-9 Marine Solid Roller Camshaft Chevrolet Big Block - 280/280 396-454

(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

11-745-9
8 reviews
Sale Price

$456.29

Estimated ship date Friday, November 27

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Product Details

The COMP Cams 11-745-9 is a high-performance solid roller camshaft specifically designed for marine applications with Chevrolet Big Block engines ranging from 396 to 454 cubic inches. This camshaft features an aggressive 280/280 duration profile that delivers excellent mid-range to high-RPM power, making it ideal for performance boats and marine racing applications.

Key Features:

  • Solid roller design for maximum performance and durability in marine environments
  • 280° intake and 280° exhaust duration for strong power delivery
  • Engineered specifically for Chevy Big Block 396, 402, 427, and 454 engines
  • Marine-specific grind optimized for boat applications and propeller loads
  • Requires solid roller lifters, performance valve springs, and marine-grade components
  • Provides excellent throttle response and high-RPM power band

This camshaft is designed for serious marine performance builds and requires supporting modifications including a performance valve train, aftermarket intake manifold, headers, and proper tuning. The solid roller design provides superior valve control and durability compared to flat tappet camshafts, making it an excellent choice for demanding marine environments where reliability is critical.

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

310

Advertised Intake Duration

310

Basic Operating RPM Range

5,000-7,500

Grind Number

310AR-8

Exhaust Valve Lift

0.772

Intake Valve Lift

0.772

Exhaust Duration at .050 inch Lift

280

Intake Duration at .050 Inch Lift

280

Cam and Lifter Kit Upgrade

CL11-745-9

K-Kit Upgrade

K11-745-9

Camshaft Series

Marine

SK-Kit Upgrade

SK11-745-9

Assembly Lubricant Included

No

Lifters Included

No

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.

Camshaft Gear Attachment

3-Bolt

Cam Type

Solid Roller

Usage

Marine

AMAZON ASIN

B000P5G5UO

Camshaft Material

Billet Steel

LOBE SEPARATION

108

Lifter Type

Solid Roller

Engine Family

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

I had a great experience shopping at autoplicity

good price

Great price, exactly what I needed. I will definitely return to Autoplicity for future autoparts orders! Thanks!

Great experience with autoplicity. Fast shipping. Ordered on 5/31 got bed cover on 6/2. Fit truck perfect.

Best price on the internet for my parts. Shipped out the next morning.

Amazing. Ordered Thursday night and received item Saturday morning! Just as described.

Great deal on my ARP bolts! Got rod bolts, engine bolt kit, and a harmonic bolt. Love this place! 9697

Great Price - Shipped the following day - Very please

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