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COMP Cams Camshaft CS 268Ah-10

SKU: CCA12-318-4

Camshafts

CCA Camshafts...

COMP Cams Camshaft CS 268Ah-10

SKU: CCA12-318-4

Camshafts

CCA Camshafts...

A$691.69
Last Available from MFR. LAST ONE AVAILABLE from the manufacturer's distribution centre. Once sold, this item may not be immediately available again. The dispatch timeframe shown is an estimate based on historical orders for this part and is dependent on the manufacturer releasing the final available unit.

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Description

HE Mar 222/226HFTSBC

Hydraulic Flat Tappet for '58-'98 262-400 c.i.d. Small Block Engines (Except LT1). Good for Jet Boat with A Impeller - Strong Mid-Range Power.

Additional Information

Good for jet boat with A impeller, strong mid-range power.

Application Summary

Fits Chevrolet GEN 1 Small Blocks including the 262, 265, 267, 283, 302, 305, 307, 327, 350 and 400. Does not fit LT1/LT4, or factory roller Small Blocks built from 1985 and newer. GM gradually added roller camshafts to 305's and 350's from the mid 80's forward. Camaros/Firebirds/Corvettes received the roller cams early, but many trucks and SUV's had flat tappet cams until the mid 90's. Remove the intake or timing cover to confirm whether the block is a factory roller or flat tappet. Does not fit the LS1, LS2, LS3 or any LS-based 4.8, 5.3, 5.7, 6.0 and 6.2. 1955-1957 Chevrolet 265 engines require a groove on the 5th cam journal for oiling. Contact us for more information.

Part Type

Engine Camshaft

Product Overview

Fits Chevrolet GEN 1 Small Blocks including the 262, 265, 267, 283, 302, 305, 307, 327, 350 and 400. Does not fit LT1/LT4, or factory roller Small Blocks built from 1985 and newer. GM gradually added roller camshafts to 305's and 350's from the mid 80's forward. Camaros/Firebirds/Corvettes received the roller cams early, but many trucks and SUV's had flat tappet cams until the mid 90's. Remove the intake or timing cover to confirm whether the block is a factory roller or flat tappet. Does not fit the LS1, LS2, LS3 or any LS-based 4.8, 5.3, 5.7, 6.0 and 6.2. 1955-1957 Chevrolet 265 engines require a groove on the 5th cam journal for oiling. Contact us for more information.

Data: v4.2 - Upd: 2026-11-07 21:25:44

Features

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

Advertised Exhaust Duration:276
Advertised Intake Duration:268
Amazon ASIN:B000P5G6I0
Assembly Lubricant Included:Yes
Basic Operating RPM Range:2,400-5,400
C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?:Yes, but must meet tailpipe emission standards for year of vehicle.
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.
Cam Type:Hydraulic Flat Tappet
Camshaft Gear Attachment:3-Bolt
Camshaft Material:Cast Iron
Camshaft Series:High Energy Marine
Description:High Energy Marine 222/226 Hydraulic Flat Cam for Chevrolet Small Block
Engine Family:Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
Exhaust Duration @ .050 in.:226
Exhaust Duration at .050 inch Lift:226
Exhaust Duration:276-4
Exhaust Valve Lift(in):0.464
Exhaust Valve Lift:0.464
Grind Number:268AH
Intake Duration @ .050 in.:222
Intake Duration at .050 Inch Lift:222
Intake Duration:268-4
Intake Valve Lift(in):0.464
Intake Valve Lift:0.464
Lifter Type:Hydraulic Flat Tappet
Lifters Included:No
Part Number:cca12-318-4
RPM Range:2000-9000
Title:High Energy Marine 222/226 Hydraulic Flat Cam for Chevrolet Small Block
Usage:OEM
Valve Springs Required:Yes

Product Downloads

# Document Type Download
1. Catalog

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Data: v2 - Desc: v4.2 - Upd: 2026-11-07 19:00:45

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Comp Cams, Comp Cams (edelbrock)
StreetFX SKU cca12-318-4
SFX Item ID 4118638
Accounting SKU cca-12-318-4
Manufacturer SKU 12-318-4
Manufacturer UPC 036584610434
Alternative References 12-318-4, CCA-12-318-4

Camshaft, Hydraulic Flat Tappet, Advertised Duration 268/276, Lift .464/.464, Chevy, Small Block, Each

COMP Cams Xtreme Marine camshafts take advantage of the newest developments in camshaft engineering. Their aggressive lobe design produces better throttle response and top-end horsepower than other cams with the same duration at .050 in., while delivering increased engine vacuum. These cams are available for everything from pleasure boats to race applications, so you can always enjoy Xtreme performance on the water. From hydraulic and mechanical, to flat and roller tappet, COMP Cams offers camshafts for your watercraft dating as far back as the 1950s.

Product Attributes
BrandCOMP Cams
Manufacturer's Part Number12-318-4
Part TypeCamshafts
Product LineCOMP Cams Xtreme Marine Camshafts
UPC036584610434
Cam StyleHydraulic flat tappet
Camshaft UseStock Replacement
Basic Operating RPM Range2,400-5,400
Intake Duration at 050 inch Lift222
Exhaust Duration at 050 inch Lift226
Duration at 050 inch Lift222 int./226 exh.
Advertised Intake Duration268
Advertised Exhaust Duration276
Advertised Duration268 int./276 exh.
Intake Valve Lift with Factory Rocker Arm Ratio0.464 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio0.464 in.
Valve Lift with Factory Rocker Arm Ratio0.464 int./0.464 exh.
RemanufacturedNo
Computer-Controlled CompatibleNo
Grind NumberCS 268AH-10
Valve Springs RequiredYes
QuantitySold individually.

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