Description
Hydraulic Roller – Thumpr: High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle.
COMP Cams Thumpr 283THR7 Camshaft for Small Block Chevrolet Carbureted Engines Originally Equipped with Hydraulic Roller Cams
Hydraulic Roller – Thumpr: High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle.; 283/303 Advertised Duration, 227/241 Duration .050″, .513″/.498″ Lift, 107 Lobe Separation; 1900 to 5600 RPM range; Must use bronze tip fuel pump pushrod when using high pressure or high volume pump;
Fits ’87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc)
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