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COMP Cams Nitrided Camshaft CB XS282 S

SKU: CCA11-678-20

Camshafts

CCA Camshafts...

COMP Cams Nitrided Camshaft CB XS282 S

SKU: CCA11-678-20

Camshafts

CCA Camshafts...

A$928.85
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

XE NIT 244/252SFTBBC

Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts, the Xtreme Energy grind family offers gains in torque and horsepower while still delivering adequate vacuum for power brakes and other vacuum dependent accessories. Xtreme Energy camshafts work great in carbureted applications, but offer the best performance with aftermarket intake manifolds, lower gear ratios, headers and free flowing exhaust.

Additional Information

Street/strip, 3000+ stall, likes headers and gears, rough idle. Nitrided.

Application Summary

Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts

Part Type

Engine Camshaft

Additional Application Notes
• w/ S Engine VIN; Hyd. Flat Tappet; 2400-6800rpm; Adv. dur. 282 Int./290 Exh.; V. Lift .59 Int./.598 Exh.; Lobe Angle 110 deg.;
• w/ S Engine VIN;
• Hyd. Flat Tappet; 2400-6800rpm; Adv. dur. 282 Int./290 Exh.; V. Lift .59 Int./.598 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 21:25:48

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:B002EDYPCK
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
Camshaft Gear Attachment:3-Bolt
Camshaft Material:Nitrided Cast Iron
Camshaft Series:Xtreme Energy
Description:Xtreme Energy NIT 244/252 Solid Flat Cam for Chevrolet Big Block 396-454
Engine Family:Chevrolet 396-454 c.i. 8 Cylinder (1967-1996)
Exhaust Duration @ .050 in.:252
Exhaust Duration at .050 inch Lift:252
Exhaust Duration:290
Exhaust Valve Lift(in):0.598
Exhaust Valve Lift:0.598
Grind Number:XS282S
Intake Duration @ .050 in.:244
Intake Duration at .050 Inch Lift:244
Intake Duration:282
Intake Valve Lift(in):0.59
Intake Valve Lift:0.59
Lifter Type:Solid Flat Tappet
Lifters Included:No
Part Number:cca11-678-20
RPM Range:2400-7000
Title:Xtreme Energy NIT 244/252 Solid Flat Cam for Chevrolet Big Block 396-454
Usage:Street/Strip
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 19:00:24

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Comp Cams, Comp Cams (edelbrock)
StreetFX SKU cca11-678-20
SFX Item ID 4118500
Accounting SKU cca-11-678-20
Manufacturer SKU 11-678-20
Manufacturer UPC 036584177883
Alternative References 11-678-20, CCA-11-678-20

Camshaft, Mechanical Flat Tappet, Duration 282 Int./290 Exh., Lift 0.590 Int./0.598 Exh., Lobe Separation 110, Chevy, BBC, 396-454, 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 Number11-678-20
Part TypeCamshafts
Product LineCOMP Cams Xtreme Energy Camshafts
UPC036584177883
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 Ratio0.590 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio0.598 in.
Valve Lift with Factory Rocker Arm Ratio0.590 int./0.598 exh.
Camshaft Gear Attachment3-bolt
RemanufacturedNo
Computer-Controlled CompatibleNo
Grind NumberXS282S
Valve Springs RequiredYes
QuantitySold individually.

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