This 2004 6.0 was upgraded with a BTR camshaft. BTR valve springs. BTR hardened pushrods. New LS7 lifters and ARP head bolts. Rebuilt heads. New Melling oil pump. New GM timing set.
The flywheel exploded at only 100 miles after all of this was done. Some damage to the back of the block but it is just the area where the driver side dowel pin goes.
Roughly $2,000 spent in parts alone. It was pulled to do a Cummins 12v swap.
I have a video of it running.
You get this as shown complete minus intake manifold for $2,000. Price is firm firm firm