Like most of gm engines, the iron duke could be found in just about any car, until replaced with the 2.4 I believe in the 90's. I'm surprised the G bodies didn't get them, of coarse if you had a fwd gm that wasn't the 2.8v6 or 3.8v6- it had the duke. The rear drivtrain was basically pulled from a Citation and shoved in backwards, with the steering disabled. I'm suprised they never threw a bunch of cosworth parts at it and called it a Fiero Monza.
People have put pontiac gtp/ssei supercharged 3.8s in them, which I would prefer to the famed v8 swap, which is usually a Northstar from a fwd v8 gm sedan like an Alero, STS/Seville, DTS/Deville, Aurura. Personally, I think the Northstar was a turd, that was killed if it was made to do too much v8 stuff.