Chevrolet PERFORMANCE Racing Hydraulic Roller Lifter Kit
[88958689]

These lifters perform very well under higher rpms runs. They're basically drops in too. No preload bs you have to deal with since they're higher end stock replacements used in the gm racing vehicles. While my Corvette isn't a race specific vehicle, I do attend summer road course events and I've already ran these a summer and pulled them while doing some head work and the lifters look brand new, even after all the beating I gave on the track. One satisfied GM owner here.