so let me get this strait, for a 6 bolt block, and a 7 bolt head, i use the 6 bolt head bolts, and i just need to re drill the bolt hole for the one that the oil goes tru because 6 bolt bolts have thicker head bolts, and i dont need to drill all of the rest right? and to be safer do a head oil port mod as well. that should be it right?
and 1/2 inch is all i need to drill it out to?
Last edited by Vancho; 11-28-2011 at 08:21 PM.
Reason: forgot to put something in