COMP Cams Thumpr Camshaft Hydraulic Flat Tappet Lift 0.512/0.498" Duration 278/296 - 107 LSA 91609089 Diaphragm / Screws

Diaphragm / Screws

Fits all internally balanced small block Chevy engines

Iron / Organic

1999-2004 Chevrolet Silverado 2500 78

COMP Cams Thumpr Camshaft Hydraulic Flat Tappet Lift 0.512/0.498" Duration 278/296 - 107 LSA 91609089 Diaphragm / ScrewsPerformance street with good low end, stock converter ok, needs gears. Choppy thumping idle. 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 model, if that theoretical performance doesn't translate