I am trying to find the correct water pump and starter for my 74 SD . It was built in the 7th month of 74 . The part number that is in the GM parts book shows it the same as the regular 400 and 455 for 73-74 1108500 . Does anyone have a late built 74 with the original starter on it. And what date code would the water pump be ? Would it be in 74 or earlier near the date codes of the heads and block?
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