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COMP Cams 11-318-4 Magnum 236/236 Hydraulic Flat Camshaft Chevy BBC 396-454

(Chevrolet Camaro 1967-72, Corvette 1966-74, Impala 1965-76, Malibu 1966-67, 1973-75, C1500 1990-93, Chevelle 1965-73, Blazer 1973-74 + 106 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

11-318-4
7 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 Magnum 236/236 hydraulic flat tappet camshaft is engineered for Chevrolet big block 396-454 engines seeking substantial performance gains without excessive valve train stress. This proven grind delivers excellent high-RPM power while maintaining durability for street and performance applications.

Key Features:

  • 236° advertised duration on intake and exhaust for aggressive performance
  • Hydraulic flat tappet design for reliable operation and reduced maintenance
  • Optimized for engines with 9.5:1 or higher static compression ratios
  • Ideal for bleeding off excess compression in high-compression builds
  • Works best with aftermarket higher stall torque converters
  • Compatible with mild ratio rocker arms and traditional performance valve springs
  • Delivers strong top-end power without needlessly wearing valve train components

This camshaft is part of COMP Cams' time-tested Magnum series, offering an excellent balance between performance enhancement and long-term reliability. Perfect for street/strip applications, hot rods, and muscle car restorations where durability matters as much as power. Designed specifically for Chevrolet big block V8 engines including 396, 402, 427, and 454 cubic inch variants.

Products specifications

Fits

Chevrolet Camaro 1967-72, Corvette 1966-74, Impala 1965-76, Malibu 1966-67, 1973-75, C1500 1990-93, Chevelle 1965-73, Blazer 1973-74, C10 Pickup 1968-80, Caprice 1966-76, C10 1975-81, El Camino 1966-75, Monte Carlo 1970-75 + 101 more models

Advertised Intake Duration

286

Cam Type

Hydraulic Flat Tappet

Exhaust Valve Lift

0.556

Intake Valve Lift

0.556

Grind Number

286H

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL11-318-4

K-Kit Upgrade

K11-318-4

Camshaft Series

Magnum

SK-Kit Upgrade

SK11-318-4

Assembly Lubricant Included

Yes

Lifters Included

No

LOBE SEPARATION

110

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.

Basic Operating RPM Range

2,200-6,200

Camshaft Gear Attachment

3-Bolt

Exhaust Duration at .050 inch Lift

236

Intake Duration at .050 Inch Lift

236

Advertised Exhaust Duration

286

Usage

Street/Strip

Engine Family

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

AMAZON ASIN

B000CIU9U6

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.

The part description was off by a mile, however the part number and the item recieved were exactly what I wanted and orderd. shipped fast, got parts in two days. Finaly got e-mail that parts had shipped 7 days after I had received the order, just a little slow in that regard. As long as I get the parts I orderd and quick shipping, cudos to Autoplicity.

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 parts ...great prices

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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