Chevy Small Block Hydraulic Flat Tappet Street Performance Camshaft/Lifter Kit – Recommended Spring Pressures are 110# On Seat, 280# Open. Product Features Valve Lift .458/.458 Advertised Duration 284/284 Duration At .050″ Lift 218/218
Chevy Small Block Hydraulic Flat Tappet Street Performance Camshaft/Lifter Kit – Recommended Spring Pressures are 110# On Seat, 280# Open. Product Features Valve Lift .458/.458 Advertised Duration 284/284 Duration At .050″ Lift 218/218