yes, for a drag car where the block is changed regularly it isnt a problem, but for an endurance race, it would really suck to be pulling 20+psi of boost and the head pull the studs just enough to blow the hg. and trust me, the hondas block had all the threads in the block for the head studs stripped when we went to replace the hg. block was junk. pistons were stock cast units and were fine. aluminum blocks are no good if you want any amount of reliability at serious hp levels.
william