stock,
My conveyor number is 1, do you know where that is located?
I agree with all you said.
I think there is something I know, which is the 2nd owner is the one that put the engine in. He sold it to a 3rd owner who only had it a bit more than a year. The 3rd owner didn't know too much about it, they had bought it for their Father who had a dream to have it, but was diagnosed with Parkinson's and the truck vibrated too much for him.
It was the second owner that I believe put the engine in, and the one that knew about the inline 6 to know what parts to use. I believe he could have put the head on the block intentionally.
You've helped me understand and pointed me in the right direction to dig up a great deal about my engine and truck.
Thanks so much.