I think though if you go 98 engine, you will have to have the 98PCM? We put a 99 PCM and we tried a 97 PCM in my friends 98 and it would die every time he would go to stop. When we swapped back to the 98 PCM it was fine. And, I would think if you were swapping it into a VATS car, you would need the parameters in the PCM for the VATS.....may be wrong on this, but, just wanted to throw that out there in case there was a problem. I did have it wrong in the last post thinking engine was going in the 98. So with that being said, I would say, keep the 97 stuff in there and see if its fine, just from my experience, it didnt work. If not, then your looking at converting over the wiring and PCM from the 98 car to the 97...
