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COMP Cams Camshaft Kit CS XE284H-10

SKU: CCAK12-250-3

Camshaft Kits

CCA Camshaft Kits

COMP Cams Camshaft Kit CS XE284H-10

SKU: CCAK12-250-3

Camshaft Kits

CCA Camshaft Kits

A$1,763.82
Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.
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Description

K-KIT - Complete Kit Includes: Camshaft, Lifters, Valve Springs, Retainers, Valve Locks, Valve Stem Seals, Timing Chain Set, Assembly Lube (in flat tappet applications), 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:296
Advertised Intake Duration:284
Amazon ASIN:B001R99QBW
Assembly Lubricant Included:Yes
Basic Operating RPM Range:2,300-6,500
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 Energy
Description:Xtreme Energy 240/246 Hydraulic Flat Cam K-Kit for Chevrolet Small Block
Engine Family:Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
Exhaust Duration @ .050 in.:246
Exhaust Duration at .050 inch Lift:246
Exhaust Duration:296
Exhaust Valve Lift(in):0.51
Exhaust Valve Lift:0.51
Gaskets Included:No
Intake Duration @ .050 in.:240
Intake Duration at .050 Inch Lift:240
Intake Duration:284
Intake Valve Lift(in):0.507
Intake Valve Lift:0.507
Kit Type:K-Kit - Complete Kit
Lifter Type:Hydraulic Flat Tappet
Lifters Included:Yes
Lobe Separation:110
Part Number:ccaK12-250-3
RPM Range:2000-9000
Title:Xtreme Energy 240/246 Hydraulic Flat Cam K-Kit for Chevrolet Small Block
Usage:Street/Performance
Valve Springs Included: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 Kit

Data: v4.2 - Upd: 2026-09-27 16:44:19

Specifications

Product Attributes - Brand
COMP Cams
Product Attributes - Manufacturer's Part Number
K12-250-3
Product Attributes - Part Type
Camshaft Kits
Product Attributes - Product Line
COMP Cams Xtreme Energy Cam and Lifter Kits
Product Attributes - UPC
036584024545
Product Attributes - Cam Style
Hydraulic flat tappet
Product Attributes - Basic Operating RPM Range
2,300-6,500
Product Attributes - Camshaft Use
Street/Strip
Product Attributes - Intake Duration at 050 inch Lift
240
Product Attributes - Exhaust Duration at 050 inch Lift
246
Product Attributes - Duration at 050 inch Lift
240 int./246 exh.
Product Attributes - Advertised Intake Duration
284
Product Attributes - Advertised Exhaust Duration
296
Product Attributes - Advertised Duration
284 int./296 exh.
Product Attributes - Intake Valve Lift with Factory Rocker Arm Ratio
0.507 in.
Product Attributes - Exhaust Valve Lift with Factory Rocker Arm Ratio
0.510 in.
Product Attributes - Valve Lift with Factory Rocker Arm Ratio
0.507 int./0.510 exh.
Product Attributes - Lobe Separation (degrees)
110
Product Attributes - Grind Number
CS XE284H-10
Product Attributes - Computer-Controlled Compatible
No
Product Attributes - Lifters Included
Yes
Product Attributes - Lifter Style
Hydraulic flat tappet
Product Attributes - Valve Springs Included
Yes
Product Attributes - Outside Diameter of Outer Spring (in.)
1.430 in.
Product Attributes - Retainers Included
Yes
Product Attributes - Locks Included
Yes
Product Attributes - Valve Stem Seals Included
Yes
Product Attributes - Timing Chain and Gears Included
Yes
Product Attributes - Timing Chain Style
Double roller
Product Attributes - Assembly Lubricant Included
Yes
Product Attributes - Pushrods Included
No
Product Attributes - Rocker Arms Included
No
Product Attributes - Gaskets Included
No
Product Attributes - Valve Springs Required
No
Product Attributes - Quantity
Sold as a kit.

Reference Information

Brand Name/s Comp Cams
StreetFX SKU ccaK12-250-3
SFX Item ID 4123727
Supplier Item Code 4123727
Manufacturer SKU K12-250-3
Manufacturer UPC 36584024545
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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