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COMP Cams Cam & Lifter Kit CS XM 290H-1

SKU: CCACL12-248-4

Camshaft Kits

CCA Cam & Lifter Kits...

COMP Cams Cam & Lifter Kit CS XM 290H-1

SKU: CCACL12-248-4

Camshaft Kits

CCA Cam & Lifter Kits...

A$857.39
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Description

CL-KIT - Cam and Lifter Kit Includes: Camshaft, Lifters, Assembly Lube, Decals and Instructions.

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:306
Advertised Intake Duration:290
Amazon ASIN:B001GESG8C
Assembly Lubricant Included:Yes
Basic Operating RPM Range:2,500-6,500
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:Xtreme Marine
Description:Xtreme Marine 246/256 Hydraulic Flat Cam and Lifter Kit Chevrolet Small Block
Engine Family:Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
Exhaust Duration @ .050 in.:256
Exhaust Duration at .050 inch Lift:256
Exhaust Duration:306
Exhaust Valve Lift(in):0.522
Exhaust Valve Lift:0.522
Gaskets Included:No
Intake Duration @ .050 in.:246
Intake Duration at .050 Inch Lift:246
Intake Duration:290
Intake Valve Lift(in):0.516
Intake Valve Lift:0.516
Kit Type:CL-Kit - Cam and Lifter Kit
Lifter Type:Hydraulic Flat Tappet
Lifters Included:Yes
Lobe Separation:112
Locks Included:No
Part Number:ccaCL12-248-4
RPM Range:2000-9000
Retainers Included:No
Timing Chain and Gears Included:No
Title:Xtreme Marine 246/256 Hydraulic Flat Cam and Lifter Kit Chevrolet Small Block
Usage:OEM
Valve Springs Required:Yes
Valve Stem Seals Included:No

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 and Lifter Kit

Data: v4.2 - Upd: 2026-10-13 17:42:44

Specifications

Product Attributes - Brand
COMP Cams
Product Attributes - Manufacturer's Part Number
CL12-248-4
Product Attributes - Part Type
Camshaft Kits
Product Attributes - Product Line
COMP Cams Xtreme Marine Cam and Lifter Kits
Product Attributes - UPC
036584041528
Product Attributes - Cam Style
Hydraulic flat tappet
Product Attributes - Basic Operating RPM Range
2,500-6,500
Product Attributes - Camshaft Use
Stock Replacement
Product Attributes - Intake Duration at 050 inch Lift
246
Product Attributes - Exhaust Duration at 050 inch Lift
256
Product Attributes - Duration at 050 inch Lift
246 int./256 exh.
Product Attributes - Advertised Intake Duration
290
Product Attributes - Advertised Exhaust Duration
306
Product Attributes - Advertised Duration
290 int./306 exh.
Product Attributes - Intake Valve Lift with Factory Rocker Arm Ratio
0.516 in.
Product Attributes - Exhaust Valve Lift with Factory Rocker Arm Ratio
0.522 in.
Product Attributes - Valve Lift with Factory Rocker Arm Ratio
0.516 int./0.522 exh.
Product Attributes - Lobe Separation (degrees)
112
Product Attributes - Camshaft Gear Attachment
3-bolt
Product Attributes - Grind Number
XM290H
Product Attributes - Computer-Controlled Compatible
No
Product Attributes - Lifters Included
Yes
Product Attributes - Lifter Style
Hydraulic flat tappet
Product Attributes - Valve Springs Included
No
Product Attributes - Retainers Included
No
Product Attributes - Locks Included
No
Product Attributes - Valve Stem Seals Included
No
Product Attributes - Timing Chain and Gears Included
No
Product Attributes - Assembly Lubricant Included
No
Product Attributes - Pushrods Included
No
Product Attributes - Rocker Arms Included
No
Product Attributes - Gaskets Included
No
Product Attributes - Valve Springs Required
Yes
Product Attributes - Quantity
Sold as a kit.

Reference Information

Brand Name/s Comp Cams
StreetFX SKU ccaCL12-248-4
SFX Item ID 4123022
Supplier Item Code 4123022
Manufacturer SKU CL12-248-4
Manufacturer UPC 36584041528
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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