The original Thickness of the V8 head

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    There has been some discussion on what is an execeptable skimming of the heads on the V8 engine. I have not been able to find anywhere the original thickness measurement to judge if any heads offered are suitable for refurbishment. Does anyone out there know what the original thickness was and what skimming is acceptable.



    The original thickness is 3”. The factory originally said they could be skimmed by 10 thou, and it has been suggested that 20 thou is quite ok. Indeed I have seen 100 thou mentioned but that would be a brave man.

    The other point to consider is that if too much is taken off, the inlet manifold bolt holes will not line up, although of course they can be enlarged. I also believe that thicker head gaskets have been used.

    Best wishes

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