Well it fit my truck
I own a c1500 with a 305 and a 4l60 and I bought.
454 out of a 91 chevy 3500 will my original
If it does bolt up it won't be " plug and play " , And if you get it working it'll destroy the original drive train . That's what I think
Electronic nightmare trying to get 91 engine (GM OBD1) to work in a 96 GM OBD2 vehicle. Plus there will need to be some hardware changes.