I couldnt stand when everyone would say why you building a N/A 4.8L its practically pointless get a 5.3L or 6.0L. Well, blah on yall... cause Guess what I'm joining the bandwagon now. lol, I finally bought one. I'm about to save up and try get some head work done after i send them off to be checked before I do anything else. I really need to start thinking about getting a FLT tranny soon to. Motor came out of a 03 Silverado SS with 86,000 for a lifter knock..