You can look up the casing numbers on the side of the engine the number punched in shown in you picture by the distributer is like a serial number but has signifigant imfo for you truck. The cast numbers are cast in tbe block when made and are below the distributer number shown. There is also a number on the head on the drivers side of the engine. The cast numbers are all listed on the web as to the years made and if they were in cars or trucks.
