Quote:

On a all iron cold motors (heads and blocks) with hydraulic lifters and adjustable rocker arms like yours I like and use between 1/4 to 1/2 turn preload from zero I have seen recommendations from some of the cam grinders to look for .015 preload cold on a all iron motor between the lifter cup and the retaining ring on top of the lifters when adjusted cold with the intake off




I use 0.010" or less cold with iron.