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Casting numbers
I just checked my block casting number and its 3837004 I looked it up and they are 56 numbers one one site and 55-57 numbers on another. My truck is a 59. Is there any difference I should know about between my 59 and the earlier numbers? Will the parts on both motors interchange or were there changes from year to year?
Last edited by popeyestruck; 06-20-2022 at 05:11 AM.
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