My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

COMP Cams CL12-236-3 Xtreme Marine Hydraulic Flat Cam and Lifter Kit for Chevrolet Small Block

(GMC G2500 1979-95, Yukon 1992-95, K1500 1979-86, 1988-95, C1500 1979-86, 1988-95, K2500 1979-86, 1988-95, Jimmy 1970-91 + 238 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

CL12-236-3
10 reviews
Sale Price

$386.95

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The COMP Cams CL12-236-3 Xtreme Marine cam and lifter kit is specifically engineered for Chevrolet small block marine applications requiring reliable performance in demanding on-water conditions. This complete hydraulic flat tappet camshaft kit delivers a 218/224 duration profile that provides excellent mid-range torque and throttle response ideal for marine use.

Key Features:

  • 218/224 degrees duration for strong mid-range power and torque
  • Hydraulic flat tappet design for quiet, reliable operation
  • Marine-specific grind optimized for boat applications
  • Engineered specifically for Chevrolet small block engines
  • Complete kit includes everything needed for installation

Kit Includes:

  • Camshaft with 218/224 duration profile
  • Hydraulic flat tappet lifters (complete set)
  • Assembly lube for proper break-in
  • Installation instructions
  • COMP Cams decals

This Xtreme Marine series camshaft is designed to handle the unique demands of marine environments, including extended periods at constant RPM and the corrosive conditions associated with water-based applications. The hydraulic flat tappet design provides maintenance-free valve lash adjustment while delivering the durability needed for marine service. The 218/224 duration specification offers an excellent balance of low-end torque for hole shots and mid-range power for cruising and watersports.

Products specifications

Fits

GMC G2500 1979-95, Yukon 1992-95, K1500 1979-86, 1988-95, C1500 1979-86, 1988-95, K2500 1979-86, 1988-95, Jimmy 1970-91, C3500 1979-86, 1988-95, K2500 Suburban 1979-86, 1992-95, K3500 1979-86, 1988-95, C15/C1500 Pickup 1967-74 + 234 more models

Basic Operating RPM Range

1,300-5,500

Cam Type

Hydraulic Flat Tappet

Kit Type

Cl-Kit - Cam and Lifter Kit

Intake Valve Lift

0.462

Exhaust Valve Lift

0.477

Camshaft Material

Cast Iron

SK-Kit Upgrade

SK12-236-3

Camshaft Series

Xtreme Marine

AMAZON ASIN

B000P59JHU

Usage

OEM

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

Advertised Intake Duration

262

Camshaft Gear Attachment

3-Bolt

Locks Included

No

Advertised Exhaust Duration

268

Lifters Included

Yes

Retainers Included

No

Timing Chain and Gears Included

No

Exhaust Duration at .050 inch Lift

224

Intake Duration at .050 Inch Lift

218

Engine Family

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

Valve Stem Seals Included

No

Great prices and quick shipping! They kept me informed of when the item was shipped also. Couldn't be happier!

Great prices. Great live customer service. Very pleased, will definitely order again.

Lowest prices I found on the net and great customer service! Fast shipping too!

Nice website, easy to order

GREAT SERVICE, FAST SHIPPING, WILL USE AGAIN

Excellent service. I called in Monday for a hard to find item which I had ordered from several other online shops who despite saying were In Stock online were not actually in stock at all and the orders were canceled after waiting a week to find out. They had the item in stock as listed on their website and shipped the next day. The price was the cheapest of anyone who actually had the item in stock by a substantial amount.

Its amazing the prices Autoplicity is able to offer some of their products at. The product i ordered was consistently msrp on every site i searched through, yet autoplicity had it for $10 less. Lowest price along with a attractive and intuitive website is a win in my book. Having it shipped in less the 24hrs is another bonus

Lowest prices with quick processing and shipping. Very happy and will shop again!

Good prices.

Best price around, very fast shipping and great service! I will buy from them again!

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy