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Discussion Starter · #1 ·
i have a set of 351W heads im not sure what year there off of anyone know how i can find out what year they are from.. im thinking there from the 70's a friend that i no loner talk to gave them to me and he had them rebuild and i want to sell them but i need to know the year
 

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The casting number will be on the outside of the head and read somehing like D2AE-6049-A and the casting date will be by the pushrod holes

The foundry mark will either be DIF or CF
 
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