COMP Cams Pro-Magnum Lifter FS/FC/FF - 862-16

Pro Magnum Hydraulic Flat Tappet Lifters. Specifications .875" Diameter - 105g Weight - 1.95" Seat Height. Specifically designed to perform at higher engine speeds. Proper position of internal piston at higher RPM prevents lifters from harmful "pumping up". Unique design yields significant power increase over standard hydraulic lifters. Adjustable valve train required. Pre-load .002"-.004" with engine warm. Applications: Ford Small Block V8 289-302-351W, Ford Small Block V8 351C-351M-400M, Ford Big Block V8 429-460