Driveshaft Length

Thanks for the info, GT. I am looking at trying to move the motor forward to avoid the interference. I would like to go to a built I already need a new oil pan and radiator. I'm going to use electric fans
:popcorn:
You're opening up a real can of worms trying to move the engine.
You're not the first one down this road, not by a longshot. Instead of making twice the work for yourself and risk a stalled or abandoned project, do your due diligence and research it.
Here, I'll even get you started:
63 dart v8 swap