My wife has a 340 in her 73 Challenger. I still have a long way to go... to get it road worthy (every time I turn around I have to stop the project for real life)
I have a guy that is talking about selling me his 72 (sounds like it needs work, but likely could be put on the road quickly) but he plans to keep the 360 drive train.
I have at my disposal a 383, 318, and possibly a 360. Unless I swipe the 340 frommy wife. It would be easier to fix her car without the engine in it anyway.
Not sure yet how she would feel about it...but if she got to drive the car, I doubt she would have a problem.