Hey thanks Tech, I forgot all about the bore chamfer - been 25 years since I built anything.

76GMC, It looks as though the MRG-1134 head gasket with a compressed thickness of .028 could get me to a dead on quench distance of .040" with a finished deck height of 9.020", if I went for a piston to deck clearance of .012".

Is it likely that a nominal .005" off the deck will square things up (I don't know how far out a new bare block is likely to be)?

Do you guys think the 4.130 bore of this gasket is OK? It would yield a nominal .050" bore edge clearance - sound like enough room for the bore chamfer with no gasket overhang?