Having opinions and being loyal to a particular brand does'nt make us narrow minded, it makes us the competition, it's what we like and what we choose to have.
No one except your finances and maybe wife/girlfriend can keep you from putting a Supra,GN, Chevy,Ford, Cummins, General Electric turbine, or whatever engine in whatever vehicle you choose, no one here can do that, but the GN guys, as the Supra guys or any other make would do is voice their opinions to this swap.
I, as have others here stand behind the Buick GN and the engine they came with, and just do'nt see any point to this swap, though WICKEDGN said he has no plans to do such, just wondered what we think, well here are the results, just conversation.
I like many makes and models, and respect most hi perf cars and engines, to be real all engines are just glorified air pumps that produce rotating motion all in thier own way. In my experience with swaps, switching from one respected hi perf engine brand to anouther respected brand body causes the same arguments out there as they do here and it does'nt stop. I put a 396 in a 70 GTO Judge when GN's were still a decal package and Toyotas were just commuter cars, and even though it was faster and cheaper than finding a Ram Air engine (High 12"s) I did'nt get much respect for that and always had to deal with " that goat has a Chevy motor" in general disgust. Sure it could beat others but just did'nt fit in too many circles.
My opinion, both cars are highly respected and run, and both can be made to run the extreme with thier respective engines so what would be the point? I am sure the Supra guys would say the same if someone wanted to put a Buick 6 in a Supra.