MTFCA Forum

Need advise on early head.
In the process of replacing my head gasket, I noticed that of the 4 holes that had been drilled for larger head bolts, which had been shimmed back to the original size, three had been pushed lower by the head bolt. Now there are three hole shims that protrude lower than the surface of the head. They range from .021 to .019 of an inch. The head gasket did not leak there or anywhere these holes, but was leaking out the side. There was no leaking into the cylinders; it was seeping out to the outside of the block. My question is, do I need to have this head planned again or will this cause a problem? I would appreciate your thoughts!

John there are ways of making a sleeve slightly longer than the head thickness. Then slightly counter sink the cast iron at both ends and peen flare both ends. Not all is lost.

Hope this Helps,

Hank

It is or was possible that they had been drilled for a larger bolts at one time but more likely drilled and sleeved for internal cracks, just file them flush with the head deck.

Thanks Gentlemen for the input! I will get it put back together tomorrow.