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

Pyrotect Professional Series Arm Restraints are Nomex covered HD foam with adjustable length nylon straps

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

Tachometer Bracket

Ford 9" housing brackets provide a mounting point for upper link

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