64 Dart GT
Did I read you wanted a big block in that car?
I know everything is possible, but a big block in an early a, are you leaving the front suspension or going custom front end with coil overs and remove the inner fenders.
Really a stroked small block would make it a screamer and fit 408 stoker will fit better and easier to work on than a 400 (not as wide as the RB) or 440
Good luck on building your car your way
Mig want to start a thread in members restoration so it doesn't get lost like it will here.