I have an 84 GN, and was wondering what I need to change it over to an 87 GN setup. I was thinking I could just buy a used Plenum, Throttle Body and turbo mounts. I already have the Intercooler, and shroud. Is that all I need?
i think that if you want to do it right, then you will essentially need an entire engine (and everything bolted to it) and wiring harness from an 86 or 87 turbocharged Regal.