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COMP Cams Camshaft Kit CS 279T H-107 T

SKU: CCAGK12-600-4

Camshaft Kits

CCA Camshaft Kits...

COMP Cams Camshaft Kit CS 279T H-107 T

SKU: CCAGK12-600-4

Camshaft Kits

CCA Camshaft Kits...

A$1,341.35
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Description

Thumpr 227/241 Hydraulic Flat Cam GK-Kit for Chevrolet Small Block 262-400. High performance street, stock converter ok, best with 2000+ converter and Gears, choppy/thumping idle.

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:B002EE8YQC
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 Series:Thumpr
Description:Thumpr 227/241 Hydraulic Flat Cam GK-Kit 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
Gaskets Included:No
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
K-Kit Upgrade:K12-600-4
Kit Type:GK-Kit - Cam and Gear Kit
Lifter Type:Hydraulic Flat Tappet
Lifters Included:Yes
Locks Included:No
Part Number:ccaGK12-600-4
Pushrods Included:No
RPM Range:2000-9000
Retainers Included:No
Timing Chain and Gears Included:Yes
Title:Thumpr 227/241 Hydraulic Flat Cam GK-Kit for Chevrolet Small Block
Usage:Street/Performance
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 17:41:09

Specifications

Product Attributes - Brand
COMP Cams
Product Attributes - Manufacturer's Part Number
GK12-600-4
Product Attributes - Part Type
Camshaft Kits
Product Attributes - Product Line
COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits
Product Attributes - UPC
036584183204
Product Attributes - Cam Style
Hydraulic flat tappet
Product Attributes - Basic Operating RPM Range
2,000-5,800
Product Attributes - Camshaft Use
Street/Strip
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 - Grind Number
279TH7
Product Attributes - Computer-Controlled Compatible
No
Product Attributes - Lifters Included
Yes
Product Attributes - Lifter Style
Hydraulic flat tappet
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
Gears
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
Yes
Product Attributes - Quantity
Sold as a kit.

Reference Information

Brand Name/s Comp Cams
StreetFX SKU ccaGK12-600-4
SFX Item ID 4123502
Supplier Item Code 4123502
Manufacturer SKU GK12-600-4
Manufacturer UPC 36584183204
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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