Mopar Marine Pick

Legend has it, if you use certain marine crank shafts in a vehicle engine, the knurled rear seal area will "push out oil" as it counter- rotates, opposite the way it did in a boat.
:drama:
It ain't legend. It's stone cold fact. The hash marks on the seal surface on the marine crankshafts are cut the opposite direction from car stuff, so it will pump oil right past the seal going clockwise.