Just picked this up this new to me XCD replacement GM motor from the original owner. Still in the original crate ...never opened! Kind of cool to see how they were assembled with the correct nuts and bolts. I see that there are a few other cub members that have also latched on to one of these. The guy I purchased this from also has 3 new Muncie transmissions still in the crate, he's not sue if they are M-20,21 or 22's. When he digs them out ....I'll be on the run!