Yes.
A powerglide is a 2 speed automatic transmission.
First of all, A powerglide and a TH 400 turbo are 2 different transmissions. And YES either 1 will bolt right to the big block engines.
Yes, same bolt pattern.
yes
Yes it will bolt right up. Just need to change Fly-wheel
any pre 1964 small blocks ie. 289
yes
No. The one engine will interfere with the other. Both cannot occupy the same space.
If they are both Chevrolet the bolt pattern is the same.
yes they do
yes the Chevy in line 6 cylinder and the 350 share the same bolt pattern from 1963 and up.
Yes. They share the same bolt pattern at the bell housing to the block.