External Oil Plumbing Made Easy!Designed to plumb Moroso Accumulators, External or Dry Sump Oil Pumps, or a remote oil cooler for a wet sump oiling system. Fits Small Block Chevy engines without modifications and Big Block Mark IV Chevy engines with minor block modifications. Eliminates the need for a remote oil filter and associated plumbing hardware. Lowers oil filter by 1-1/2". Equipped with 1/2" NPT inlet and outlet ports. Includes full instructions, mounting bolts and O-rings.