stock or hv oil pump

You mean like how the factory did it on this 65' 318? 5 out of 6 webs have holes.
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If it has 6 main bearing woulden it have 10 cylinders?

But I guess those holes would act like the holes I'm talkin about. They're just not round. LOL

Do you have that block in the picture? If so could you post a few more pictures of it?