Looked at what appeared to be a mostly original unrestored 71 with a 429. Date code of the engine is in line with the production date of the vehicle. However the water pump appears to be dated 7A14. How would this be possible? I didn’t think the 429/460 came out until 1968. Will other Ford engine water pumps say from an FE motor work on the 429/460s? Attached is a photo of the water pump and engine date code.