Engines and Components› Camshafts and Valvetrain

COMP Cams

MThmpr 234/249 H-Flt CL-Kit Olds 260-455

$467.17

SKU: C007 CL42-601-5

In Stock
In Stock
Ships by Jun 9
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The COMP Cams CL42-601-5 Mutha Thumpr Camshaft and Lifter Kit is a hydraulic flat tappet design, engineered to deliver significant horsepower and a broad torque curve for Oldsmobile 260-455 cubic inch V8 engines from 1967-1990. It is characterized by an aggressive, rough idle and a distinctive, powerful exhaust note, making it ideal for high-performance street and strip applications.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandCOMP Cams
Part NumberC007 CL42-601-5

Videos

455 10to1 compression on pistons comp cam camshaft rockers & guild plate WESTCHESTER CRANKSHAFTs

455 10to1 compression on pistons comp cam camshaft rockers & guild plate WESTCHESTER CRANKSHAFTs

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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