To Go Wing or not?

When I first got the duster it had a late 70's olds 442 wing on it which surprisingly fit very well within the dusters body lines.

I'd like to see that. I bet it looked cool back it the day. Was the Oldsmobile different than the others? I remember the ones Ford used were the same as Mopar used. Never paided that much attention to the Olds I guess.