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COMP Cams Nitrided Camshaft CS 279T H7

SKU: CCA12-600-20

Camshafts

CCA Camshafts...

COMP Cams Nitrided Camshaft CS 279T H7

SKU: CCA12-600-20

Camshafts

CCA Camshafts...

A$957.64
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

Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series' early intake valve opening and long exhaust duration create optimum overlap for that race car idle. The Thumpr grinds all require an aftermarket torque converter and lower gear ratio to ensure the drivetrain always puts the engine in its powerband. Additionally, Thumpr camshafts typically deliver reduced vacuum at idle, making a vacuum canister, pump or hydroboost a requirement for vehicles running power brakes.

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:297
Advertised Intake Duration:279
Amazon ASIN:B002EDYKBQ
Assembly Lubricant Included:Yes
Basic Operating RPM Range:2,000-5,800
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:Nitrided Cast Iron
Camshaft Series:Thumpr
Description:Thumpr NIT 227/241 Hydraulic Flat Cam for Chevrolet Small Block
Engine Family:Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
Exhaust Duration @ .050 in.:241
Exhaust Duration at .050 inch Lift:241
Exhaust Duration:297
Exhaust Valve Lift(in):0.465
Exhaust Valve Lift:0.465
Grind Number:279TH7
Intake Duration @ .050 in.:227
Intake Duration at .050 Inch Lift:227
Intake Duration:279
Intake Valve Lift(in):0.479
Intake Valve Lift:0.479
Lifter Type:Hydraulic Flat Tappet
Lifters Included:No
Lobe Separation:107
Part Number:cca12-600-20
RPM Range:2000-7000
Title:Thumpr NIT 227/241 Hydraulic Flat Cam for Chevrolet Small Block
Usage:Street/Strip
Valve Springs Required: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

Data: v4.2 - Upd: 2026-10-13 17:49:23

Specifications

Product Attributes - Brand
COMP Cams
Product Attributes - Manufacturer's Part Number
12-600-20
Product Attributes - Part Type
Camshafts
Product Attributes - Product Line
COMP Cams Thumpr Pro-Plasma Nitrided Camshafts
Product Attributes - UPC
036584177920
Product Attributes - Cam Style
Hydraulic flat tappet
Product Attributes - Camshaft Use
Street/Strip
Product Attributes - Basic Operating RPM Range
2,000-5,800
Product Attributes - Intake Duration at 050 inch Lift
227
Product Attributes - Exhaust Duration at 050 inch Lift
241
Product Attributes - Duration at 050 inch Lift
227 int./241 exh.
Product Attributes - Advertised Intake Duration
279
Product Attributes - Advertised Exhaust Duration
297
Product Attributes - Advertised Duration
279 int./297 exh.
Product Attributes - Intake Valve Lift with Factory Rocker Arm Ratio
0.479 in.
Product Attributes - Exhaust Valve Lift with Factory Rocker Arm Ratio
0.465 in.
Product Attributes - Valve Lift with Factory Rocker Arm Ratio
0.479 int./0.465 exh.
Product Attributes - Lobe Separation (degrees)
107
Product Attributes - Remanufactured
No
Product Attributes - Computer-Controlled Compatible
No
Product Attributes - Grind Number
279TH7
Product Attributes - Valve Springs Required
Yes
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Nitrided camshaft.

Reference Information

Brand Name/s Comp Cams
StreetFX SKU cca12-600-20
SFX Item ID 4118731
Supplier Item Code 4118731
Manufacturer SKU 12-600-20
Manufacturer UPC 36584177920
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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