95 Riv Engine swap Question

I was wondering if it was possible to take a 4.0 V8 out of an olds aurora and put it in a 95 Buick Riviera that had a 3800 Supercharged V6 In it? If possible at all what would i have to replace to make it work?

question 1 why do you want to replace the supercharged engine with a 4.0 northstar engine???????????

you would need ecm,wiring harness tcm (trans. control module)and also the transmission is different. "4t65" in the riviera and 4t80e in the aurora.