Pushrod oiling on a 89 360 LA?

That combo is “partially” pushrod oiled.
The rockers have no oil holes in the pushrod cup, so the oil coming up the pushrod only lubes the pushrod & rocker interface.
The rest of the lube requirements for the head are still handled the traditional way.

“Why” they decided to do it that way on that combo of parts……… I have no idea.