Thumpr 227/241Hydraulic Roller & Evolution Lifter Kit, Ford 221-302

Description

The COMP Cams Thumpr camshaft delivers a signature lopey idle, strong low- to mid-RPM torque, and improved horsepower, making it ideal for street/strip builds seeking aggressive sound, throttle response, and classic muscle performance. Designed for high-performance street applications, it provides an unmistakable idle quality while pairing exceptionally well with popular upgrades like the Edelbrock RPM Air Gap intake manifold and TCI Saturday Night Special torque converter. Built withfull-size base circles for added durability, this cam 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 CL31-600-8, delivering proven performance and simplified valvetrain compatibility in one upgraded design.

COMP Cams® is the leading American manufacturer of high-quality, performance-based internal engine components, including camshafts, valve springs, rocker arms, lifters, pushrods, and other valve train components. We help our customers with innovative technological advancements through extensive research and development. Our quality workmanship and engineering ensure confidence for racers and street performance enthusiasts. COMP Cams is a proud member of the Edelbrock Group family of brands, which include Edelbrock®, FAST® (Fuel Air Spark Technology), TCI® Automotive, Russell® Performance and Lunati Power®. Headquartered in Olive Branch, Mississippi, COMP Cams remains an innovative American company focused on results-driven technology and superior customer support. We believe in the automotive lifestyle and continue to support the passion for our American pastime. For more information about the Edelbrock Group or any partner brands, visit www.edelbrockgroup.com.

Features & benefits

• 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 CL31-600-8
• New Melling lifters should always be part of a new camshaft installation. To make selection of the desired combination of camshaft and lifters easier, Melling offers camshaft / lifter kits that provide the camshaft and correct lifter combinations for your engine application.

Specifications

Videos and guides

California residents

WARNING: This product can expose you to Zinc Dithiophosphate, Paraffinic Pertroleum Oil, Anthraquinone Dye, known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.

Carb Status

California carb status to be completed