Originally Posted by jockbolter50
i've been unable to locate a set of head bolts here in the UK to fit them

Jock, are you referring to the bolts that attach the manifolds to the cylinder heads? If so, there's nothing particularly unique about them- - - - -they're simply Grade 5 3/8-16 bolts. (3/8 U.N.C.) If you can find bolts that will allow 1/2" or slightly more thread engagement in the exhaust port threads they will work just fine. Slightly over-length bolts can have the threads trimmed to fit without any disasters, also.
Jerry

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