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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

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.

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.

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. E.O. Number:N/A
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.
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. Exemption Reason:N/A
California Proposition 65:WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
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
Lobe Separation:110
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

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

Data: v4.2 - Upd: 2026-10-13 17:49:24

Specifications

Product Attributes - Brand
COMP Cams
Product Attributes - Manufacturer's Part Number
12-318-4
Product Attributes - Part Type
Camshafts
Product Attributes - Product Line
COMP Cams Xtreme Marine Camshafts
Product Attributes - UPC
036584610434
Product Attributes - Cam Style
Hydraulic flat tappet
Product Attributes - Camshaft Use
Stock Replacement
Product Attributes - Basic Operating RPM Range
2,400-5,400
Product Attributes - Intake Duration at 050 inch Lift
222
Product Attributes - Exhaust Duration at 050 inch Lift
226
Product Attributes - Duration at 050 inch Lift
222 int./226 exh.
Product Attributes - Advertised Intake Duration
268
Product Attributes - Advertised Exhaust Duration
276
Product Attributes - Advertised Duration
268 int./276 exh.
Product Attributes - Intake Valve Lift with Factory Rocker Arm Ratio
0.464 in.
Product Attributes - Exhaust Valve Lift with Factory Rocker Arm Ratio
0.464 in.
Product Attributes - Valve Lift with Factory Rocker Arm Ratio
0.464 int./0.464 exh.
Product Attributes - Lobe Separation (degrees)
110
Product Attributes - Remanufactured
No
Product Attributes - Computer-Controlled Compatible
No
Product Attributes - Grind Number
CS 268AH-10
Product Attributes - Valve Springs Required
Yes
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Comp Cams
StreetFX SKU cca12-318-4
SFX Item ID 4118638
Supplier Item Code 4118638
Manufacturer SKU 12-318-4
Manufacturer UPC 36584610434
Alternative References l46, l48, l65, lm1, lt-1, l82

Compatibility

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.

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