What does the number 5 mean on a Ford block date code?
What does the number 5 mean on a Ford block date code? Look at the first digit of the Ford block date code, which appears like a four-digit code, sometimes with a fifth digit representing the engine size or horsepower. The first number represents the decade year. For this example, in a four-digit code of "5E30", "5" means 1995 when appearing as the first digit. What are the casting numbers for a Ford engine block? A Note about Ford FE Blocks Casting Number Years CID Engine Family Block 427 1968 427 FE Medium-Block 471 1955-1964 272/292/312 Y-Block Small-Block 475-1433 1958-1976...