Re: 1997 GT enigine swap with 04
Here are some of the answers I believe you are looking for. I recently swap my 96 gt engine for one out of a 2001 GT. You will need to use your stock 97 computer, don't try to use a newer on 99-04 due to PATS problem. My 96 computer with no tune done a great job. When I started the car for the first time It was a little confused for about 5-10 minutes. After that it was smooth sailing. The 99-04 accessory brackets are configured a little different than the 96-98 cars. I used the 01 set up & belt with only one minor issue. The passenger coil pack bracket will need minor mod to work correctly. In saying that, I used the only bolt that lined up to mount it & have had no problems. If you want to keep it simple & cheap reuse your 97 coil packs. They work just fine & also kinda camo the pi engine!!. I reused my 96 oil pressure sending unit due to the 01 having a different plug on the end. The 96-98 cars have a low oil level sensor that plugs into the side of the oil pan towards the bottom. You can either use the 97 oil pan or do like I did & use the 01 pan & tie the plug to the clutch cable. I check & change my oil reguarly so I wasn't to concerned with the sensor. If you have a updated 97 non pi intake ( cross over ) you can remove the front cross over & install it on the 99-04 intake to keep from having to drill & tap for one of the temp sensors. The 96-98 cars have two in the crossover verses the 99-04's having one. The 96-04 manifolds are the same except for the bolt diameter size on the passenger side. The 96-98's are bigger than the 99-04's. It's was a real easy swap almost 100% direct just a couple little things that can be taken care of while on the engine stand. One more thing to remember, if you buy a complete engine the 96-98 & 01-04 have the same flywheel. The 99-00 have there own. Try to get a 01-04 I personally believe they hold up better. Best upgrade that I could have possibly done to this car. It also turns out to be a better engine that a PI swapped one. Hope this helps out.
1998 coupe auto 3.27
2.25 h-pipe 2 cats
2.25 gt cat back
K&N drop in