LA small block,Do you put an oil passage in your head stud?

Rat Bastid said

They make studs that go from 7/16 threads to 3/8 shank for chevy stuff for a reason. If ARP wanted to, or if there was a need for it they could make a stud that is 1/2 x 7/16 and you could use that if you thought you needed it. IDK, maybe they do make them. I’ve never asked.

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Are you aware that you just contradicted everything you were saying about the 1/2 shank stud being weak at the shank in earlier posts. You said that grove cut it the shank made it weak. But now you are saying they could make a 1/2" thread with a 7/16 shank and it would hold up.

The stud measures .510 at the shank. and the ARP bolt Measures .440 at the shank. The Hole in and Edelbrock head I just measured is .530 so the bolt gives .045 clearance for oil per side. the stud gives .010 per side.

He is cutting at .070 groove in the stud with a balled end mill That is .440 left . Thats a lot of material left on the stud . More then a bolt. Because it is not the total diameter cut. And confidence that the oil is not blocked off.