Thumpr 227/241 LSA 107 Hydraulic Roller Camshaft Ford 302W Windsor SBF

31-600-8, COMP Cams Thumpr Retrofit Hydraulic Roller 302 Windsor Camshafts - suits early blocks. 

Very cool thumping idle.

High performance street, stock converter ok, best with 2000+ converter and gears, choppy/thumping idle

COMP Cams is bringing back the musclecar sound—and it's nastier than ever! Few things grab our attention at a car show or cruise night more than a car with a thumping high performance idle. In an ongoing quest to provide you with the performance and sound you demand, COMP Cams' engineering team proudly introduces the Thumpr retrofit hydraulic roller camshafts. They are a series of camshafts designed for use in engines that were originally equipped with flat tappet camshafts. The lobe profile and grind characteristics use a combination of an early exhaust valve opening, a long exhaust duration, and a generous amount of intake and exhaust overlap to maximize the rough-idling characteristics of the cams. They give you a seriously aggressive exhaust note without negatively impacting the power output or streetability of the engine

Engine Family:  Ford 221, 260, 289, 302 c.i. 8 Cylinder (1963-1995)

RPM Operating Range:  1,900-5,600

Grind Number:  283THR7

Cam Type:  Hydraulic Roller

Lifter Style:  Hydraulic Roller

Camshaft Series:  Thumpr

Usage:  Street/Performance

Advertised Intake Duration:  283

Advertised Exhaust Duration:  303

Intake Duration at .050 Inch Lift:  227

Exhaust Duration at .050 Inch Lift:  241

Intake Valve Lift:  0.531

Exhaust Valve Lift:  0.515

Lobe Separation:  107

Camshaft Gear Attachment:  1-Bolt