Engine swaps are difficult in these cars due to how the front differential is mounted.
I've stuffed a 511 stroker in a Dodge Aspen, transplanted an entire XJ 4x4 drivetrain into a '46 Ford half ton, etc. I ain't skeert!
Lucky for me, I own and operate a substantial machine shop with 2 & 3 axis CNC lathes, a 4 axis VMC, a 5 axis subspindle millturn, gobs of manual machines, mag break, MIG, TIG, stick and gas welders, heat treat oven, etc. And if I can't make the shape with what I've got, a good friend is the owner of Nemesis Industries just up the road with a massive water jet and 200 ton press break. There's not a lot we can't make happen!