Does anybody know what the difference is between a '98 3.8L and a 00-04 3.8L??? I can't find a website that will tell me the difference. My 98 spun a bearing and I want to put a low milage engine in there. I found a 00-04 Impala 3.8L engine for what I want to spend, but I don't know it is interchangeable. They are both Vin K. I need to know if the motor mounts are in the same place, same kind of sensors, exhaust manifolds will bolt up or not, wiring harness, etc... Please help!