Street. Track. Everything between.
07 3276 7829
Your garage Find parts for your vehicle Select year, make and model to narrow your search.

COMP Cams Camshaft CS XS282S-10

SKU: CCA12-678-4

Camshafts

CCA Camshafts...

COMP Cams Camshaft CS XS282S-10

SKU: CCA12-678-4

Camshafts

CCA Camshafts...

A$691.69
Available from MFR. In stock at 2 locations (7 available)

Added to cart

We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

Camshaft - Xtreme Energy - Mechanical Flat Tappet - Lift 0.520 / 0.540 in - Duration 282 / 290 - 110 LSA - 2400 / 6800 RPM - Small Block Chevy - Each

XE 244/252 SFT SBC

SBC - 1955-57 models have an oiling groove in the rear journal. The listed part numbered cams will not fit these models, so if you require a Camshaft with the oiling groove, please call us at 1-800-999-0853 or contact us, and we will assist you with placing an order.

Additional Information

Street/strip, 2800+ stall, likes headers and gears, rough idle.

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.

Additional Application Notes
• w/ J Engine VIN;
• Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Mech. Flat Tappet; 2400-6800rpm; Adv. Dur. 282 Int./290 Exh.; Valve Lift .520 Int./.540 Exh.; Lobe Angle 110 deg.;
• w/ J Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Mech. Flat Tappet; 2400-6800rpm; Adv. Dur. 282 Int./290 Exh.; Valve Lift .520 Int./.540 Exh.; Lobe Angle 110 deg.;
• w/ L Engine VIN; w/ K Engine VIN;
• w/ L Engine VIN; w/ K Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Mech. Flat Tappet; 2400-6800rpm; Adv. Dur. 282 Int./290 Exh.; Valve Lift .520 Int./.540 Exh.; Lobe Angle 110 deg.;
• From 1985-1998 Chevrolet introduced the factory roller Small Block into GM cars and trucks. Verify whether or not your vehicle came with a factory roller camshaft. If your vehicle was equipped with a roller camshaft, look to our camshafts and kits that start with "08-".
• w/ H Engine VIN;
• w/ V Engine VIN;
• w/ H Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Mech. Flat Tappet; 2400-6800rpm; Adv. Dur. 282 Int./290 Exh.; Valve Lift .520 Int./.540 Exh.; Lobe Angle 110 deg.;
• w/ V Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Mech. Flat Tappet; 2400-6800rpm; Adv. Dur. 282 Int./290 Exh.; Valve Lift .520 Int./.540 Exh.; Lobe Angle 110 deg.;
• w/ T Engine VIN;
• w/ T Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Mech. Flat Tappet; 2400-6800rpm; Adv. Dur. 282 Int./290 Exh.; Valve Lift .520 Int./.540 Exh.; Lobe Angle 110 deg.;
• w/ K Engine VIN; w/ J Engine VIN;
• w/ K Engine VIN;
• w/ K Engine VIN; w/ J Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Mech. Flat Tappet; 2400-6800rpm; Adv. Dur. 282 Int./290 Exh.; Valve Lift .520 Int./.540 Exh.; Lobe Angle 110 deg.;
• w/ K Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Mech. Flat Tappet; 2400-6800rpm; Adv. Dur. 282 Int./290 Exh.; Valve Lift .520 Int./.540 Exh.; Lobe Angle 110 deg.;
• w/ B Engine VIN;
• w/ B Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Mech. Flat Tappet; 2400-6800rpm; Adv. Dur. 282 Int./290 Exh.; Valve Lift .520 Int./.540 Exh.; Lobe Angle 110 deg.;
• w/ R Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Mech. Flat Tappet; 2400-6800rpm; Adv. Dur. 282 Int./290 Exh.; Valve Lift .520 Int./.540 Exh.; Lobe Angle 110 deg.;
• w/ R Engine VIN;
• w/ X Engine VIN;
• w/ X Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Mech. Flat Tappet; 2400-6800rpm; Adv. Dur. 282 Int./290 Exh.; Valve Lift .520 Int./.540 Exh.; Lobe Angle 110 deg.;
• w/ Y Engine VIN;
• w/ Y Engine VIN; Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle Mech. Flat Tappet; 2400-6800rpm; Adv. Dur. 282 Int./290 Exh.; Valve Lift .520 Int./.540 Exh.; Lobe Angle 110 deg.;

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

Data: v4.2 - Upd: 2026-11-07 21:25:16

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:290
Advertised Intake Duration:282
Amazon ASIN:B000R9Z63K
Assembly Lubricant Included:Yes
Basic Operating RPM Range:2,400-6,800
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:Solid Flat Tappet
Cam and Lifter Kit Upgrade:CL12-678-4
Camshaft Gear Attachment:3-Bolt
Camshaft Material:Cast Iron
Camshaft Series:Xtreme Energy
Description:Xtreme Energy 244/252 Solid Flat Cam for Chevrolet Small Block
Engine Family:Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
Exhaust Duration @ .050 in.:252
Exhaust Duration at .050 inch Lift:252
Exhaust Duration:290
Exhaust Valve Lift(in):0.54
Exhaust Valve Lift:0.54
Grind Number:XS282S
Intake Duration @ .050 in.:244
Intake Duration at .050 Inch Lift:244
Intake Duration:282
Intake Valve Lift(in):0.520
Intake Valve Lift:0.52
K-Kit Upgrade:K12-678-4
Lifter Type:Solid Flat Tappet
Lifters Included:No
Part Number:cca12-678-4
RPM Range:2000-9000
SK-Kit Upgrade:SK12-678-4
Title:Xtreme Energy 244/252 Solid Flat Cam for Chevrolet Small Block
Usage:Street/Performance
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 19:01:14

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Comp Cams, Comp Cams (edelbrock)
StreetFX SKU cca12-678-4
SFX Item ID 4118798
Accounting SKU cca-12-678-4
Manufacturer SKU 12-678-4
Manufacturer UPC 036584070269
Alternative References 12-678-4, CCA-12-678-4, COM12-678-4

Camshaft, Mechanical Flat Tappet, Advertised Duration 282/290, Lift .520/.540, Chevy, Small Block, Each

COMP Cams Xtreme Energy camshafts employ the latest cam technology to provide maximum performance. Whether your use is off-roading, towing, or street performance, there's an Xtreme Energy cam available for you. By using an aggressive lobe profile, these cams provide better throttle response and more top-end horsepower than equivalent cams from other manufacturers—while delivering increased engine vacuum. Hundreds of models are available for fitment on vehicles from 1955 to the present. Select the cam designed for your application.

Product Attributes
BrandCOMP Cams
Manufacturer's Part Number12-678-4
Part TypeCamshafts
Product LineCOMP Cams Xtreme Energy Camshafts
UPC036584070269
Cam StyleSolid flat tappet
Camshaft UseStreet/Strip
Basic Operating RPM Range2,400-6,800
Intake Duration at 050 inch Lift244
Exhaust Duration at 050 inch Lift252
Duration at 050 inch Lift244 int./252 exh.
Advertised Intake Duration282
Advertised Exhaust Duration290
Advertised Duration282 int./290 exh.
Intake Valve Lift with Factory Rocker Arm Ratio0.520 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio0.540 in.
Valve Lift with Factory Rocker Arm Ratio0.520 int./0.540 exh.
Intake Valve Lash0.016 in.
Exhaust Valve Lash0.016 in.
RemanufacturedNo
Computer-Controlled CompatibleNo
Grind NumberCS XS282S-10
Valve Springs RequiredYes
QuantitySold individually.

Compatibility

Loading compatibility information...

Keep shopping

More from Comp Cams