Here is an older 928 with an LS3..
And anotherone with a Toyota V12
Both done by the same guys. Very nicely done. Both cars were taken down to the unibody and rebuilt back up all new. Both cars were also salvage title wrecked cars.
There is also a guy here in OKC that does GM into Porsche swaps, he does both 928s and 944s. Wasn't real impressed when I saw his gutted out car.