Oil Filter Block-Off Plate Fits: 1957-01 Ford 8, 6, 4 cyl 1959-03 Dodge Chrysler 8, 6, 4, cyl 1970-86 Toyota 4 cyl 1986-96 Toyota 6 cyl. Others: All engines with 2-1/2 I.D. x 2-7/8 O.D. Sealing Area and 3/4 -16 UNF Block Thread. -12AN fitting size Aluminium Block-Off Plates designed for Moroso Dry Sump Oiling System or External Oil Pump Drilled and tapped to accept 1/2 NPT fitting to provide increased clearance for installing input pressure line Includes all mounting hardware and O-rings