I have a 98 gtp supercharge and I noticed today when I went to check my coolent there was sluge in my colent tank I checked m oil dipstick. And the oil wasn't milky I changed the oil about 3 weeks ago and it wasn't milky then... I'm ve been told by a few people that its either my headgasket or my intake manafold gasket.. I looked online and found out that gm used plastic intake gaskets and are known to go on the supercharger... I usual do all the work on my car I can but this seems like a job thafs a little difficult so I was wondering if it wpuld be worth paying to get fixed if not are there any cheap motors out there that have more power then the 3800 and would bcompatable with the stock drivetrain n all the other componets on the engine