Big Al, regardless of what old transmission you have if you decide to change to a new tranny then there is plenty of info out there. There are a few posts here on Classic Olds that are on the subject.
http://classicoldsmobile.com/forums/...94-1962-a.html
I believe there is a company called Tanson that makes an adapter for the 394 to adapt it to "modern Chevy bellpatterns." You also might check out the following article, I didn't read it but I found it with a simple search on the internet.
http://www.streetrodderweb.com/tech/...mission_swaps/
Also, check out the following website. If you are going to swap to a modern overdrive tranny then you will need to install a throttle valve.
http://www.tvmadeez.com/
Good luck, and keep the questions coming.
