This Peterson Fluid Systems oil inlet adapter (-10 port x -12 x 3.250") is an aluminum fitting that combines a -10AN port with a -12AN outlet and a 3.250-inch length. Designed for front-of-block oil input over the water pump on small-block Chevy engines, it helps position the oil feed where required for particular plumbing layouts.
Peterson Fluid Systems Oil Inlet Fitting -10AN Portx - 12 x 3.250