COMP Cams Thumpr Hydraulic Flat Tappet Camshaft - 107 LSA - Small Block Ford 15-NEC-B-A 1999-2000 Chevrolet K3500

1999-2000 Chevrolet K3500

runs a magnetic particle filled fluid over and through metal parts

GM HEI 4 Pin 1974-88

pit or trailer

COMP Cams Thumpr Hydraulic Flat Tappet Camshaft - 107 LSA - Small Block Ford 15-NEC-B-A 1999-2000 Chevrolet K3500Designed to deliver an aggressive, hard hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series' early intake valve opening and long exhaust duration create optimum overlap for that race car idle. The Thumpr grinds all require an aftermarket torque converter and lower gear ratio to ensure the drivetrain