I'm about two seconds away from taking my head off my truck and putting one off another motor on. I think it is a valve but not sure. Any final advise.

 

Why wouldn't you pull the head if you have no compression?

Once you get it off you'll at least know what the problem is. We could guess here on the internet all day and never figure it out.

Btw, I had to search for your other thread to find out what's already been suggested to you. Why start a new one?