I agree with Dave, that looks like the oil transfer hole Denny. That feature is on all three of the head gaskets I have. Here's a picture of the old gasket, the installed but failed copper gasket, and the new fiber gasket all stacked on each other.
https://picasaweb.google.com/lh/photo/n-WLhIU5nBMXwcIY6kn7O77Dsnwl3qS3kis-JY3pdR4?feat=directlinkDue south of each cylinder opening you can see all three gaskets have the round hole. On the old fiber gasket you can clearly see the witness mark from the larger head feature.
Like I said before, I'm not sure its the cause of the leak but it is suspect. I have the approval of my social planner to work on the truck today so I'll see how far I get and keep you all updated.
