727 guru question...

I have a small block very short shaft 727 in my divorced transfer case power wagon..
QUESTION: If I wanted to put in a big block could I just get a big block 727 case and use my short shaft tail housing and guts?? Of course new torque converter...
Would the big block torque converter have the same pump and seal size?...
Thank you for anybody's knowledge on this... It seems possible but LOL maybe it's just wishful thinking...


@TrailBeast
727 Front pump seal all the same from 1962 on. 727 front pump bushing the same. 1962 on, although you can get it either in babbit or bronze. No difference in the size of the converter hub, regardless of engine in front of it. There are 3 different sizes though for the extension seal.