Originally Posted by thedroid
The pan is a Milodon 10qt with a built in windage tray and hinged baffles. The pickup came with the pan ad is about 3/16" from the bottom and I have verified this when assemling the engine.
I run that same oil pan on my jet boat, sometimes up to 5400-5500 rpm (usually 5200-5300rpm), and it works well for me.
On the other hand, I know several other
people that run that oil pan and they all have oil pressure problems
. They also run their jet boats to an rpm point that is higher than mine, such as 5700 and higher (just like you). They each changed to a different pan and the oiling problems went away.
This does not necessarily mean that your oil pan is the culprit. But if you look at the pan design, the gating is not that great (oil can still escape down one side of the pan), and the zeus'd in windage tray does not cover/seprate the entire sump/bottom of the pan from the windage area of the crankcase.
No disprespect to Milodon, as I use a LOT of their parts in my boat engine. I suggest you look at the simpler things first (such as the filter positioning) before you jump and pull your engine to swap pans.