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

For years indexing the stud was used on LA's . When you have high tension valve springs you need oil .

More oiling the Less heat

Less Heat the more consistent valve lash.

Also keeping the springs and valves cool which means consistent spring pressure and less guide wear from over heated stems.

Oil is the rocker assemblies and valve trains best friend. It doesn't matter who's rockers you are running.

Fill in the pole.