54Vicky, It was nice to have met you. Thank you for the adaptor. One step closer to getting my engine buttoned up.
Frank
no problem Frank I also enjoyed yapping your ear off and meeting you anything to help a fellow member and car guy.now to get that bolt out if you dont have another one I am pretty sure it is a 7/16 fine thread I meant to give you a couple but once I open my mouth my mind shuts down.they are a grade 8 I think.they are not GM but what I have in the past is measure the depth of crank hole make sure there is not too much shoulder on bolt run a die down thread cut off excess.then file rough part from cutting then put a slight camphor to aid in threading in then back the die off I found this easier then trying to running die on after cutting.again nice meeting you I will follow your progress here and elsewhere Barry