After I'm done with my NV3500 swap, I decided I'm going to either swap my 318 out for a different motor or bore it out. I just happen to mention this to a friend of mine and it turns out he has a '74 383 that he'll give me. so I was wondering if the trans, flywheel, and clutch kit i have are swappable or am I out of luck in that department...

 

I assume that 383 is a big block? If so, nope. There may be an adapter out there that someone sells, but otherwise it won't work.