Hi all, it's been awhile since I've been on here,( changes to the work puter system made it hard to get on). But I've managed a work around. For those who care, I have an 02 QC 4.7 that blew both head gaskets at 85k miles. Rather than put new heads on the old bottom end I got a long block from S and J Engines in Spokane. Well, it's been around 10k miles now and the new motor continues to run excellent. I'm averaging 20-21 mpg highway and 17.5 around town. My old motor never got above 18. So, I'm really pleased with the quality of the work that they put in their long block. Looking forward to hanging around on here again.