Just throwing this out there,seems how people with rebuilds never do usually post back.I'm going on 15k with my rebuild in my GTP,as stated before,it can be done if it's done properly.But it does cost roughly 2 grand to do it properly.The line boring of the mains is a huge part, but so is having a round big end on the rods.That's what screws a lot of people as well,having oblonged big ends.Can't half ass rebuild these and get away with it most of the time.