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What would be considerd the "general rule of thumb" when it comes to casting dates versus build dates for a 1970 model year 440? Has anyone seen a block that was cast 5-6 months before the actual SPD of the vehicle?



Even though the beginning of the end of HI Performance was on the horizon they were still building HI performance cars pretty regularly. The thought of a couple months is more in line with what I have seen , but casting date is less important that the engine assembly date , but a flag can be thrown up if there is a long time between casting and assembly , it does happen but is not frequent .

Are you trying to confirm an original engine or are you looking for a date correct block for a car you own ?