Peterson Fluid Systems front-of-block oil inlet fitting (-10AN x 1/2 NPT x 3") is made to allow oil input at the front of the block over the water pump on small-block Chevy engines. The aluminum adapter provides a -10AN inlet with a 1/2 NPT pipe connection and a three-inch length to position oil feed where needed for certain plumbing layouts.
Peterson Fluid Systems Oil Inlet Fitting -10AN x 1/2 x 3 A