Dennis,
I moved your post so it could become it's own conversation. Don't want to piggy back on another Bolters thread as that can cause confusion.
Your numbers provided may be helpful to find answers to your questions, but it would be better if you could add some pictures of the engine serial number pad (directly behind the distributor) and "casting codes" for the engine block (right side of the block usually just above the oil pan flange between the front of the block and the distributor mounting location) and the head (top and side of the drivers side of the head).
We would also love to see pics of the whole truck as that may also help in confirming just what you have.
Looking forward to seeing pictures so we can try and help you with your questions.

Dan