410 exhaust manifold
My 313 engine now 318 gave trouble on the near side manifold when I first had it 21 years ago. I tried all sorts of sealers and gaskets. In the end I took it to and Engineer, as I had put a straight edge on it and found it had slightly "warped", it is extremely light and rather delicate but he managed to gently skim it (there is not much to play with) and it has been trouble free now for 19 years.
If that is any help it could save a few pounds.
Nick
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