COMP Cams Thumpr Hydraulic Roller - Camshaft - Lift 0.557/0.539 in - Duration 283/303 - 107 LSA - 1900/5600 RPM - Big Block Ford Chassis & Frame Components 7-1/2" long sleeves slide over

7-1/2" long sleeves slide over a variety of boots

Cylinder Head On

Ford Block Ford

Helmet Dryer

The Hex Drive Fuel Pump can be mounted and driven directly from the back of a properly prepared external oil pump or driven directly by the cam through a timing cover adapter

COMP Cams Thumpr Hydraulic Roller - Camshaft - Lift 0.557/0.539 in - Duration 283/303 - 107 LSA - 1900/5600 RPM - Big Block Ford Chassis & Frame Components 7-1/2" long sleeves slide overProduct Description: Camshaft Thumpr Hydraulic Roller Lift 0. 557 0. 539 in Duration 283 303 107 LSA 1900 5600 RPM Big Block Ford Sold Individually The COMP Cams philosophy has never changed: make the highest performing products possible and lead the industry in technological development. One thing COMP Cams has never forgotten: Performance is defined by what happens out on the race track. Because no matter what happens on a dyno or in a computer