Thanks for the feedback guys.
I am looking at some previous readings on this subject and it seems so far, there are more questions than answers.
The drilled bolt hole is at the threaded end of the bolts and is only slightly more than the bolt thread in depth before it is intersected. One of the bolts even has a groove ground down the length of the threads to allow oil to travel.
I reckon I should look at the engine block inside the tapped hole areas, and see what oil supply holes might come into play. It makes sense that the oil provision would be on the center oil tube area of the vertical passage hole. I'll focus on that.
Any other thoughts or comments are certainly appreciated.

Jerry


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