New bearings don't have squirt holes in them so they are non effective. The big end of the rod has a chamfer on one side and not on the other. The chamfered side goes toward the fillet radius of the crank's rod journal, the flat side goes towards the adjacent/mating rod. The arrow or mark on the top of the piston, if there is one, goes toward the front of the engine with the rod facing the correct way. rods 2,4,6 and 8 have the chamfer facing the front and 1,3,5 and 7 have the chamfer facing the rear of the engine.