Speed Unlimited carries the full line of Comp Cams components. We are an Authorized Comp Cams Warehouse Distributor.
This is a brand new in the box Comp Cams Pro Magnum Hydraulic Roller Lifters, Small Block Chevy 305 & 350 1987-Up And LS1 With OE Hydraulic Roller, R Series Hi-Rev, Set of 16.
Chevrolet Small block 305 & 350. For use in blocks originally equipped with hydraulic roller cam. ('87 to present, and LS1)
COMP Cams Pro Magnum Hydraulic Roller Lifters are specifically designed to perform at higher engine speeds. When engines are equipped with a hydraulic camshaft, high rpm is limited by the improper position of the internal piston as the lifter inevitably "pumps up". This improper location results in open valves and therefore leads to lost power or sometimes even engine failure.