I don't think that fits in a C10 frame...
Call this post closed. I rode the bike to work today.
Much quicker than I would have been able to get it done. So everything worked out with the motor from the parts bike?
Actually, it's not all good, but now I have me a whole bunch of extra parts. The motor is not good in it's current condition. I has a loud ticking coming from the #1 side. I replaced the automatic CCT with my manual one and rechecked the valves to make sure it wasn't them - no change. I'm thinking it is piston slap or a bad rocker assembly. It seems to be coming right from just below where the upper cam gears are. Donna just had right foot surgery so she can't drive and I am chafeur right now so I don't ride much. I'm going to send SISF an email with a few questions before I look for a new motor, perhaps its salvagable. Maybe swapping a piston and rod is feasible if that is all it is. I think the jugs come out of these too? If I need another one, i'll do it over the winter. I still did the ACC at MCB Quantico with it and it didn't blow up.
Do not expect a quick reply from SiSF. He and his family are on a two week fishing trip on an island near St Augustine, FL. No email, limited phone. Back in a week or so. He might have a few things to catch up on upon his return to civilization.