BB Auto Tranny Question

I've got a '74 motorhome 727 in my car. It's the exact same as a car transmission. No mods at all to get it in.

Was it out of a BIG motorhome? The one I have is Big.

Also, How much did you have to alter the drive shaft? Length?

I thought that with auto trannies you had to modifie the tranny mount. Guess I was wrong.

This could be easier than i thought for the swap. I guess the exhaust manifolds won't work though. DO I need ones from a C body?

Phil