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

COMP Cams Camshaft Kit CS 299T HR-7 BMT

SKU: CCAK12-602-8

Camshaft Kits

CCA Camshaft Kits...

COMP Cams Camshaft Kit CS 299T HR-7 BMT

SKU: CCAK12-602-8

Camshaft Kits

CCA Camshaft Kits...

A$3,846.19
LOW STOCK! Est Ship 4-7 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.
View cart 0
We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

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:319
Advertised Intake Duration:299
Amazon ASIN:B001GEXBHS
Assembly Lubricant Included:No
Basic Operating RPM Range:2,500-6,200
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 Roller
Camshaft Gear Attachment:3-Bolt
Camshaft Material:Austempered Ductile Iron
Camshaft Series:Thumpr
Description:Big Mutha' Thumpr 243/257 Hydraulic Roller Cam K-Kit for Chevrolet Small Block
Engine Family:Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
Exhaust Duration @ .050 in.:257
Exhaust Duration at .050 inch Lift:257
Exhaust Duration:319
Exhaust Valve Lift(in):0.517
Exhaust Valve Lift:0.517
Gaskets Included:No
Intake Duration @ .050 in.:243
Intake Duration at .050 Inch Lift:243
Intake Duration:299
Intake Valve Lift(in):0.531
Intake Valve Lift:0.531
Kit Type:K-Kit - Complete Kit
Lifter Type:Hydraulic Roller
Lifters Included:Yes
Lobe Separation:107
Part Number:ccaK12-602-8
RPM Range:2000-9000
Title:Big Mutha' Thumpr 243/257 Hydraulic Roller Cam K-Kit for Chevrolet Small Block
Usage:Street/Strip
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: 2026-10-15 19:41:04

Specifications

Product Attributes - Brand
COMP Cams
Product Attributes - Manufacturer's Part Number
K12-602-8
Product Attributes - Part Type
Camshaft Kits
Product Attributes - Product Line
COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits
Product Attributes - UPC
036584153450
Product Attributes - Cam Style
Hydraulic roller, Retro-fit
Product Attributes - Basic Operating RPM Range
2,500-6,200
Product Attributes - Camshaft Use
Street/Strip
Product Attributes - Intake Duration at 050 inch Lift
243
Product Attributes - Exhaust Duration at 050 inch Lift
257
Product Attributes - Duration at 050 inch Lift
243 int./257 exh.
Product Attributes - Advertised Intake Duration
299
Product Attributes - Advertised Exhaust Duration
319
Product Attributes - Advertised Duration
299 int./319 exh.
Product Attributes - Intake Valve Lift with Factory Rocker Arm Ratio
0.531 in.
Product Attributes - Exhaust Valve Lift with Factory Rocker Arm Ratio
0.517 in.
Product Attributes - Valve Lift with Factory Rocker Arm Ratio
0.531 int./0.517 exh.
Product Attributes - Lobe Separation (degrees)
107
Product Attributes - Grind Number
299THR7
Product Attributes - Computer-Controlled Compatible
No
Product Attributes - Lifters Included
Yes
Product Attributes - Lifter Style
Hydraulic roller
Product Attributes - Valve Springs Included
Yes
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
No
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 ccaK12-602-8
SFX Item ID 4123777
Supplier Item Code 4123777
Manufacturer SKU K12-602-8
Manufacturer UPC 36584153450
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.

Loading compatibility information...

Keep shopping

More from Comp Cams