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COMP Cams Camshaft Kit CS XR276HR-10

SKU: CCASK12-423-8

Camshaft Kits

CCA Camshaft Kits...

COMP Cams Camshaft Kit CS XR276HR-10

SKU: CCASK12-423-8

Camshaft Kits

CCA Camshaft Kits...

A$2,780.89
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Description

SK-KIT - Small Kit Includes: Camshaft, Lifters, Timing Chain Set, 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:282
Advertised Intake Duration:276
Amazon ASIN:B001GF3B0Y
Assembly Lubricant Included:No
Basic Operating RPM Range:1,900-5,600
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 Roller
Camshaft Gear Attachment:3-Bolt
Camshaft Material:Austempered Ductile Iron
Camshaft Series:Xtreme Energy
Description:Xtreme Energy 224/230 Hydraulic Roller Cam SK-Kit for Chevrolet Small Block
Engine Family:Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
Exhaust Duration @ .050 in.:230
Exhaust Duration at .050 inch Lift:230
Exhaust Duration:282
Exhaust Valve Lift(in):0.51
Exhaust Valve Lift:0.51
Gaskets Included:No
Intake Duration @ .050 in.:224
Intake Duration at .050 Inch Lift:224
Intake Duration:276
Intake Valve Lift(in):0.502
Intake Valve Lift:0.502
Kit Type:SK-Kit - Small Kit
Lifter Type:Hydraulic Roller
Lifters Included:Yes
Lobe Separation:110
Locks Included:No
Part Number:ccaSK12-423-8
Pushrods Included:No
RPM Range:1000-7000
Retainers Included:No
Timing Chain and Gears Included:Yes
Title:Xtreme Energy 224/230 Hydraulic Roller Cam SK-Kit for Chevrolet Small Block
Usage:Street/Performance
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 Kit

Data: v4.2 - Upd: 2026-10-13 17:39:54

Specifications

Product Attributes - Brand
COMP Cams
Product Attributes - Manufacturer's Part Number
SK12-423-8
Product Attributes - Part Type
Camshaft Kits
Product Attributes - Product Line
COMP Cams Xtreme Energy Retrofit Cam and Lifter Kits
Product Attributes - UPC
036584025733
Product Attributes - Cam Style
Hydraulic roller, Retro-fit
Product Attributes - Basic Operating RPM Range
1,900-5,600
Product Attributes - Camshaft Use
Street/Strip
Product Attributes - Intake Duration at 050 inch Lift
224
Product Attributes - Exhaust Duration at 050 inch Lift
230
Product Attributes - Duration at 050 inch Lift
224 int./230 exh.
Product Attributes - Advertised Intake Duration
276
Product Attributes - Advertised Exhaust Duration
282
Product Attributes - Advertised Duration
276 int./282 exh.
Product Attributes - Intake Valve Lift with Factory Rocker Arm Ratio
0.502 in.
Product Attributes - Exhaust Valve Lift with Factory Rocker Arm Ratio
0.510 in.
Product Attributes - Valve Lift with Factory Rocker Arm Ratio
0.502 int./0.510 exh.
Product Attributes - Lobe Separation (degrees)
110
Product Attributes - Grind Number
CS XR276HR-10
Product Attributes - Computer-Controlled Compatible
No
Product Attributes - Lifters Included
Yes
Product Attributes - Lifter Style
Hydraulic roller
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
Yes
Product Attributes - Timing Chain Style
Double non-roller
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.
Product Attributes - Notes
Retro-fit: Designed for early non-roller blocks. Requires thrust button and wear plate.

Reference Information

Brand Name/s Comp Cams
StreetFX SKU ccaSK12-423-8
SFX Item ID 4124450
Supplier Item Code 4124450
Manufacturer SKU SK12-423-8
Manufacturer UPC 36584025733
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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