(UU-136)-Insert (plugs for thermactor holes in head) - 5/8" - 11 x 7/16" - 14 x 1 1/8" , STANDARD PART (UU-136)-insert(used in front and rear of cyl. head)-5/8"-11 O.D. thread x 7/16"-14 I.D. thread , STANDARD PART
FordPartsGiant.com offers the wholesale prices for genuine 1983 Ford E-350/E-350 Super Duty parts. Parts like Cylinder Block Cylinder Head, Valves And Related Parts are shipped directly from authorized Ford dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 8 Cyl 5.8L. Transmission: 3MT.