For those of you whom don't know, but I hope most of you do by now. The 3.8 in our cars is a unique beast, in that it requires tight tolerances on the main bearings and etc. For years we have heard how the local engine builders screwed up their 3.8. For those of you that are not aware, GMHTP has an article just on this. It is a three part series. So go pick up the mag or check out the link below for part 1:
http://www.gmhightechperformance.com...2_tech01.shtml