1963 Dodge Dart 440 727 install.

I'm in the process of gathering parts to install a 440 and automatic in my 63 Dart. I'm wondering if anyone has done this and if so, does the trans tunnel need to be enlarged to fit the automatic? The car is currently straight six with three on the tree. Thank you for any information you can provide.
Anything you want to do, you can do.
Have a vision and go for it.
I'm not very familiar with early A bodies so I don't know if the transmission mount is in the same spot as the later A bodies, but if it is, I would go about it from that spot, then use a front plate to mount the engine. I myself am not afraid to cut a car up and make stuff work.
There is a guy on here and maybe he'd chime in
@66Valiant528 I assume by his username he might know something about it.