Thanks for the replies. Yes I think a GOOD bore/hone and new pistons will square it away. #2 wall will either clean up or be sleeved. I have an appointment to pressure test to be sure that it is not a crack.
The history on the short block is quite interesting and I have paperwork to prove most of it.
I bought the short block from a gentleman who grew up in Detroit. He bought the block as soon as Mancini had several to choose from. This one sonic tested the best.
The crank with standard Mopar journals was in a shipment from Callies to Scott Karlita. Not having the “special” journal size, Scott sold it.
The whole short block was sent to Diamond (early this century) where pistons were provided, Manley rods were purchased (standard Mopar length, journal and pin as they were on sale). The bore and finish hone and balance (Mallory metal) was done by none other than Butch Elkins before he passed away and Diamond closed the machine shop. This is reportedly one of the last engines that Butch did.