Yes you can, as long as they’re both push buttons from the same year. 63-65 all interchange internally. 62 and older gets iffy.
The cables for the slant 6 and small block are the same even. Though routing is different so may have to move a bracket here or there. Big block are longer.
I would use the kick down lever internally from the v8 trans though. The ratios is slightly different at least unless it’s been changed.
Converter, that’s where it’ll get interesting. Physically it’ll bolt in, whether or not the stall is correct is another matter and dependent on your engine