Jim,
A few years ago our friend Pedro sent me a busted up cylinder to do a cutaway of the valve pocket area.
This is a 65 with cast in, bronze seats. Hard to see in photos but looking closely, in person you can see the tooling paths. It looks to have been finishec with a form cutter that made the throat, top and seat in one or two cuts. I am pretty much finished with the thing so I will drop it in a box and tell the lol mailman to take it to you. Maybe help further your salvage efforts LOL.
enyhoo keep ur eyes open, it should be in ur paws by Christmas .