‘77 440 in a 70 Charger

Hi everyone! I am new here. I am working on my buddy’s 70 Charger that we are converting to a 69 General Lee. Don’t worry the car was a shell missing everything! It currently has a 1977 440, is there any difference between a 77 and say a 70 440 as far as what external accessories can be bolted on like power steering pump, alternator, crank pulley, distributor etc? Does anyone else sell repop parts besides classic industries? Thanks!
Author: DavesGeneral