Hello my names Craig, I have a question about a car I just bought, I just bought a 1999 grand prix, GT, the engine is is no good, I was wondering if anyone knows where I can find a good low mileage engine for a good price really worth buying, and any tips I need to know about the process of the engine swap, like before I actually put the motor in, something I might need to change while the engine is is out and easy to get too, someone yesterday mentioned to me that they have a plastic intake, and they are bad for blowing a intake gasket, he said you can buy a up graded intake and gasket set. can anyone help? this is the first Pontiac I I've ever owned, P.S. this car is a 4 door, has a sun roof, and is a 3800 series, if that has anything to do with the exact type of motor it has, thanks for your help...