You'll need a v8 cross member.
The upgrades are mostly bolt in, just swap as long as you have the right brakes n backing plates etc.
15 inch wheels n tires will fit no problem ...Given the bolt circle is the one you're using.
2 inch headers?? Small block street stuff with me 1 5/8 to 1 3/4 primary. Go with a 3 inch exhaust.
Power steering may hinder, just make sure the application is with power IF you have power steering.