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

Nope. Advice in this case isn’t needed. As I mentioned earlier, I’ve got plenty of oil to the top end. I’m not alone.
Anyway, you are a racer (or former, immersed in it, or?) with access to all the tools to perform something that not everybody needs. You posted it in the small block forum where all levels of ability, performance levels etc visit. Not everyone is a racer, an engine builder, has a shop full of equipment. Yes there are quite a few racers or racer minded, builders here and they all know your mo, but maybe you should be more specific about performance levels this might apply to. That would be my unsolicited advice to you.
But, You only stipulated well into the thread that your example is a 13:1 cr engine that you spin to 9000rpm. You really think everyone needs to do what your talking about? And it’s incumbent upon the reader to be able to know just what level of performance you’re talking about? Come on. You don’t differentiate.
Not everyone needs to do what you’re posting about.
Many use studs for various reasons. Again, You come off like everyone needs to do this mod. Your poll doesn’t even have an option for “don’t need it, I’m good” or to that effect. You didn’t because you obviously think it needs to be done. It kinda shows a one track mind to me. I like perspective, it’s needed in this case.....IMO:)
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If your not building a performance engine then you won't need studs. If you don't need studs then this wouldn't apply to you. Just put your stamped steel rockers on and your good to go. Don't forget to install your timing chain tensioner and your High volume oil pump. LMFAO