The Pontiac Grand prix GTP has a 3.8 L engine and the bell housing fits our transmission. These engines are a dime a dozen supercharged and 240 HP Buy a used 02 and rip the engine, harness and PCM out of it and it will "plug and play".....well sort of I mean other than small issues (he he) like motor mount compatibility etc
My mechanic uses only Jasper engines and they do not rebuild our Isuzu 3.5 because they cannot get quality parts that they can stand
And this one I can get for 229 a month by.http://fortmyers.craigslist.org/lee/ctd/2663347956.html