Location for oil holes on rocker arms?

PRH said

Think about how many thousands of sets of those have been put into service in the last 30-40 years.

No hole to the valve spring side....... yet you don’t hear of any failures as a result.

The BB ones don’t have the hole either.

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Yeah, for most street/strip stuff you don’t need any hole. I think I mentioned that in one of my posts, but maybe I thought it in my head but didn’t type it out.

If they are going to put an oil hole in the rocker IMO it needs to blow oil Dora fly on the valve spring to help cool them. The rest will take care of itself.