Welp mine wasn’t! Thats the fing point. I wasn’t getting crapola out of my top end when hand priming at 60psi. SOMETHING was wrong and I needed to understand what. I was in a debugging mode trying to understand how the system worked.
But it's not pressurized oil there. It just dribbles out. Has to run for a few before it gets oil there. That's why a good prelube is important in the pushrod cups.