COMP Cams Ford Small Block Camshaft Complete Kit FS 291TH HR07 Thumpr

The COMP Cams Xtreme Energy camshaft delivers enhanced street performance for Ford Small Block engines, providing very strong torque and horsepower gains with a smooth idle and responsive throttle—ideal for mild performance upgrades and heavier vehicle applications. Engineered for excellent low- to mid-range power, it works best with proven combinations such as the Edelbrock Performer intake manifold and a TCI Street Rodder or stock torque converter for reliable drivability. Featuring full-size base circles, this camshaft works seamlessly with COMP Cams Evolution hydraulic roller tappets and eliminates the need for dog bones and lifter retainers—components never intended for pre-1985 applications. This camshaft supersedes part number K31-601-8, delivering a dependable upgrade for improved performance and everyday usability.

Additional Information

The COMP Cams Mutha Thumpr series delivers aggressive street/strip performance for Ford Small Block engines, producing a rough lopey idle, strong midrange power, and sharp throttle response. Ideal for 9:1 compression combos with headers.

Part Type

Engine Camshaft Kit

• Eliminates the need for dog bones and lifter retainers, which were never intended for use in pre-1985 applications.
• Features full-size base circles, works seamlessly with our Comp Cams Evolution hydraulic roller tappets.
• Supersedes K31-601-8

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Product Downloads

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1.	Installation Instructions

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Reference Information