Gene,
I'll post more details later when I know the extent of the damage. Working 12-13 hours per day lately doesn't leave much energy for my truck.
I posted pictures of my #6 cylinder a while back. The impressions on the piston look like a washer of some sort got in there and beat everything up. The head, the valves, the piston were all beat up badly. I can only imagine the forces transmitted through the rod bearings during that little adventure.
The engine has been pushed right on the ragged edge for the last 50,000 miles.
-Chris