I'll play with a bit more today and take pics. Can anyone confirm the GM/Delco Remy part number 1110292 as correct for 153/181?
Yes that is correct for a 153/181 as they take the same distributor. Listed use from 1962-1970 automotive applications.
Six Ball As soon as I saw your post a bit ago, I knew that was it. Took me less than 5 minutes to get it. It was late yesterday and I'd forgotten to orient the oil pump shaft to the tang on the dist.. Thanks to all who responded. Much appreciated!