Head Gasket Preference

D&R Const said

Thanks for the responses. Do you feel that the ideal gasket bore is the same diameter as the wider part of the taper at the top of the block?

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Ideal yes, but perfect centering of the bores in each gasket hole will not be possible with every gasket on each and every block so some 'hole slop' is wise. Re-ordering head gaskets in case a too tight gasket hole does not center up perfectly on each bore is a time and $$ cost that does not buy you much, if anything.