I've read a few posts here that day tuning a 6.0 pretty much leads to popping HG's inevitably without head studs. I talked to a local shop about the process and they told me that even if they were to put head studs in the truck they couldn't guarantee it being bullet proof without inspecting the heads for cracks by sending them off to a machine shop. I haven't noticed any symptoms of a cracked head but I want to be sure if I'm going to tune my truck that I can avoid popping at all costs. I'm preparing for a cross country trip and don't have time for mechanical failure. Advice on tuning/head studs/cracked head symptoms would be greatly appreciated.