http://www.ls1truck.com/forums/lsx-t...rogress-5.html
not a 6.2, but it is a Gen IV engine into my 94 chevy using the Gen III ecm. you dont have to change the lifters like i did being that the 6.2 has VVT, not DOD.
read up on it, really good info. it took me 9 months to do this, all the research and questions asked through the build. you get it pretty easy considering i took a lot of pics, and explained everything i can. pm me if you have any questions.