Stop in for a cup of coffee

No... it actually has a (relatively speaking) built 225 Slant 6 in it. Bored, decked, 4 barrel, headers etc..... something broke during the transmission fiasco (why am I not completely flaming that guy again???). Might be a broken rod... uncomfortable rattle/clanking above idle. Almost no power as I coaxed it home.
Ah k... so... heres what i would do in your situation.... pull the 6, open it up and see what broke, it might be something absolutely stupid or not... you can still buy used 6's super cheap and if a 6turns over i would put money on it running... no idea on the trans (sorry my memory is ****) but first order would be to find out what's wrong with the current 6.

also, if the 6 is trash make sure then sell off that intake/header and **** to offset whatever you do do, those parts bring a decent buck :)