Australia-wide shipping on performance, 4x4 and vehicle-specific upgrades.

COMP Cams Camshaft CS 287T H-107 MT Thu

SKU: CCA12-601-4

Camshafts

CCA Camshafts

COMP Cams Camshaft CS 287T H-107 MT Thu

SKU: CCA12-601-4

Camshafts

CCA Camshafts

A$702.12
Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.
View cart
We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

Mutha' Thumpr 235/249 Hydraulic Flat Cam for Chevrolet Small Block 262-400. High performance street/strip, needs 9:1 compression, 2500+ stall, intake, Gears and headers, rough 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:305
Advertised Intake Duration:287
Amazon ASIN:B002EE69M8
Assembly Lubricant Included:Yes
Basic Operating RPM Range:2,200-6,100
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
Cam and Lifter Kit Upgrade:CL12-601-4
Cam, Lifter and Gear Drive Upgrade:GK12-601-4
Camshaft Gear Attachment:3-Bolt
Camshaft Material:Cast Iron
Camshaft Series:Thumpr
Description:Mutha' Thumpr 235/249 Hydraulic Flat Cam for Chevrolet Small Block
Engine Family:Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
Exhaust Duration @ .050 in.:249
Exhaust Duration at .050 inch Lift:249
Exhaust Duration:305
Exhaust Valve Lift(in):0.476
Exhaust Valve Lift:0.476
Grind Number:287TH7
Intake Duration @ .050 in.:235
Intake Duration at .050 Inch Lift:235
Intake Duration:287
Intake Valve Lift(in):0.489
Intake Valve Lift:0.489
K-Kit Upgrade:K12-601-4
Lifter Type:Hydraulic Flat Tappet
Lifters Included:No
Lobe Separation:107
Part Number:cca12-601-4
RPM Range:2000-9000
Title:Mutha' Thumpr 235/249 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: 2026-09-27 16:39:14

Specifications

Product Attributes - Brand
COMP Cams
Product Attributes - Manufacturer's Part Number
12-601-4
Product Attributes - Part Type
Camshafts
Product Attributes - Product Line
COMP Cams Thumpr Hydraulic Flat Tappet Camshafts
Product Attributes - UPC
036584175261
Product Attributes - Cam Style
Hydraulic flat tappet
Product Attributes - Camshaft Use
Street/Strip
Product Attributes - Basic Operating RPM Range
2,200-6,100
Product Attributes - Intake Duration at 050 inch Lift
235
Product Attributes - Exhaust Duration at 050 inch Lift
249
Product Attributes - Duration at 050 inch Lift
235 int./249 exh.
Product Attributes - Advertised Intake Duration
287
Product Attributes - Advertised Exhaust Duration
305
Product Attributes - Advertised Duration
287 int./305 exh.
Product Attributes - Intake Valve Lift with Factory Rocker Arm Ratio
0.489 in.
Product Attributes - Exhaust Valve Lift with Factory Rocker Arm Ratio
0.476 in.
Product Attributes - Valve Lift with Factory Rocker Arm Ratio
0.489 int./0.476 exh.
Product Attributes - Lobe Separation (degrees)
107
Product Attributes - Remanufactured
No
Product Attributes - Computer-Controlled Compatible
No
Product Attributes - Grind Number
287TH7
Product Attributes - Valve Springs Required
Yes
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Comp Cams
StreetFX SKU cca12-601-4
SFX Item ID 4118735
Supplier Item Code 4118735
Manufacturer SKU 12-601-4
Manufacturer UPC 36584175261
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