Hey I'm doing a swap from my 86 Iroc with the 305tbi to my 86 rs with the 2.8, I know the 305 isn't anything worth putting in but i want in a way of a sleeper, I was just wondering what all I'm gonna need from the Iroc currently sporting the 305 pulled to make this swap work, any help is greatly appreciated

 

Everything including radiator back to driveshaft included.
This would include engine/trans because 2.8L has its own bellhousing bolt pattern.
Engine frame mounts, ECM harness and ECM, accessory mounting brackets.
Maybe later diff exchanged due to IROC being better than RS?
For your benefit, get a Haynes manual and take plenty of pictures

Welcome to the Club, Wannabe