I Need help! Rods or piston mix up! NEED HELP!!

you should have 4 left and 4 right meaning that the oiling hole on the crank end of the rod points toward the opposite side of the block. the notch or "f" in the piston goes to the front of the block. if you use all new bearings and rod to rod clearance is right, i dont think it would matter which piston goes where.