Moroso introduces a GM LS spin-on oil filter adapter that mounts the spin-on oil filter sideways, Part No. 23711. Designed for applications that require a spin-on Oil Filter but don't have the room for one that mounts north to south. Fits Moroso Part Nos. 20138, 20139, 20142, 20143, 20145, 21046, 20147, 20148, 20149, 20150, 21151, 21152, 21153, 21154, 21157 & 21158 oil pans. Accepts 22mm thread Moroso No. 22463 or O.E.M. spin-on oil filter. Constructed out of billet aluminum construction, has a ¼" N.P.T. oil pressure port and includes mounting hardware and engine block sealing O-rings.