Originally Posted By dvw
Weak springs will hammer the bearings in the tappets worse than high spring pressure. What are the cam specs? What is a "large drag race roller"? Specs?
Doug



This is right as any valve float or anything that can let the valves bounce or hammer on the roller lifter wheel is not good for the roller lifter. You want enough spring pressure to keep that roller wheel on the cam. Why not go with a street type of hydraulic roller as they run less spring press then what you have ? Ron