Just so you all know I'm still here. Finally got the 6.0 in my car last night. Today is going to be spent on tightening and plugging everything back up.
6.0 block, 853 heads, LS6 intake, pro 85mm t.b., slp lid, tci 3500 stall, shift kit, all new gaskets, mounts, sensors, and bushings. Over 2 months of not driving it.
This winter I plan on going with some better heads and a cam. And probably a rearend before spring hits.