D5AE: Casting Code: This code identifies the intake manifold as being specifically designed for the 351 Windsor engine. It is a unique identifier for this particular intake manifold.
9425: Date Code: This code represents the date when the intake manifold was manufactured. The first two digits, "94," indicate the year (1994), and the last three digits, "25," indicate the day of the year (25th day). In this case, the intake manifold was manufactured on January 25, 1994.
DC: Production Plant Code: This code identifies the production plant where the intake manifold was manufactured. In this case, the "DC" code indicates that the intake manifold was produced at the Dearborn Casting Plant in Dearborn, Michigan.
