Ihave a Gen V 454 +.030 freshly professionally built. It has crappy oil pressure when hot. ~10 psi at idle and 35/40 running down the road. I pulled the motor and replaced the pump w/ a Milodon 18760 pump. I checked the bearings and everyone looked happy using plasta-gauge.

I plugged the cooler lines that did not help. Somewhere it is bleeding internally. Does anyone have any ideals on what might be missing inside the motor? Of course the builder is saying it is fine… It is not his money of course it fine.