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COMP Cams 12-248-4 Xtreme Marine Hydraulic Flat Camshaft Chevy Small Block - 246/256

(GMC G2500 1979-95, Yukon 1992-95, K1500 1979-86, 1988-99, C1500 1979-86, 1988-99, K2500 1979-86, 1988-95, 1998, Jimmy 1970-91 + 255 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

12-248-4
18 reviews
Sale Price

$309.95

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The COMP Cams Xtreme Marine camshaft is specifically engineered for marine applications running Chevrolet small block engines. This hydraulic flat tappet camshaft delivers a performance-oriented profile with 246 degrees of intake duration and 256 degrees of exhaust duration, providing improved throttle response and enhanced power delivery across the RPM range.

Key Features:

  • Hydraulic flat tappet design for reliable, low-maintenance operation
  • 246°/256° advertised duration optimized for marine performance
  • Xtreme Marine series built to withstand harsh marine environments
  • Enhanced corrosion resistance for saltwater and freshwater applications
  • Designed for Chevrolet small block V8 engines
  • Provides improved mid-range torque and top-end power

This camshaft is ideal for boaters seeking enhanced performance from their small block Chevy marine engine while maintaining the durability and reliability required in demanding marine conditions. The hydraulic flat tappet design ensures quiet operation and eliminates the need for frequent valve adjustments.

Products specifications

Fits

GMC G2500 1979-95, Yukon 1992-95, K1500 1979-86, 1988-99, C1500 1979-86, 1988-99, K2500 1979-86, 1988-95, 1998, Jimmy 1970-91, Savana 2500 1996-2002, Savana 1500 1996-2002, C3500 1979-86, 1988-95, K2500 Suburban 1979-86, 1992-95 + 251 more models

Advertised Intake Duration

290

Basic Operating RPM Range

2,500-6,500

Grind Number

XM290H

Cam Type

Hydraulic Flat Tappet

Exhaust Valve Lift

0.522

Intake Duration at .050 Inch Lift

246

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL12-248-4

K-Kit Upgrade

K12-248-4

SK-Kit Upgrade

SK12-248-4

Camshaft Series

Xtreme Marine

Assembly Lubricant Included

Yes

Lifters Included

No

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.

Camshaft Gear Attachment

3-Bolt

Usage

Marine

Advertised Exhaust Duration

306

Intake Valve Lift

0.516

Engine Family

Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)

Exhaust Duration at .050 inch Lift

256

AMAZON ASIN

B000P5B6B2

Fast easy

AM just waiting on response to order question.

Product arrived very quickly a d exactly as described.

Arrived as described

Product is what I wanted, An is all good.

Easy part search engine, easy order system and fast free delivery.

EXCELLENT

QUICK AND EASY

this is my new home... very cool site, beat summit and jegs by $20 to $30

Great customer service. Fast order processing. Hassle free transaction.

East to find and purchase.

Very fast shipping, received it Monday when I ordered it on Thursday. Thanks!

Great price and fast shipping! If your looking for quality brands at the best price available!!<br>

Very happy with the ease of use and the prices. Best prices all-in! Good selection and will be visiting again for other modifications to my cars. I really appreciate convienence.

I found my part easily (vent visors), checkout was simple, and I was notified the very next day that my item has been sent. The price (including shipping) was way lower than anywhere else online or in town.

Autoplicity is awsome!! lowest prices.. fast shipping great customer service.. this is hard to find in todays world!!

Great service and communication. Once it was shipped, I was able to track my item. Best price I could find on the internet!! Would definitely do business with anytime.

Fantastic ! Ordered a Weather Tech Cargo Liner for my 2012 Ford Explorer. Price was $60 less here than ALL other sites on web. I was skeptical that this was going to be a counterfeit -- as the price was too good to be true. I was extremely happy to receive the genuine product as I expected in less than a week -- and for $60 less than the competitors ! GREAT VALUE and great service ! I will definitely be back !!

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