Ford 351C Cleveland Thumpr 227/241 LSA 107 Hydraulic Roller Camshaft, Rough, Lumpy idle,

Comp Cams Thumper Camshaft - 351 Cleveland Hydraulic Roller Camshaft.

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

This Hydraulic Roller camshaft has made 500hp and 520 lbs/Ft on a 393 Cleveland, with ported Cast Iron 2V and a Dual Plane intake manifold. 

Engine Family     Ford 351C, 351M-400M 8 Cylinder (1970-1983)

RPM Operating Range    1,900-5,600

Cam Type            Hydraulic Roller

Camshaft Series    Thumpr

Camshaft Gear Attachment          1-Bolt

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 0.557

Exhaust Valve Lift              0.539”

Lobe Lift Intake       0.322”

Lobe Lift Exhaust              0.312”

Lobe Separation                107

Intake Centerline              102

Valve Timing Lift                0.006

Exhaust Close ATDC         45

Intake Open BTDC            38

Exhaust Open BBDC        78

Intake Close ABDC            65

Lifter Style           Hydraulic Roller