Big block head I.D. #'s
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Big block head I.D. #'s
I have an old set of heads off of a '70 383 engine. I need help understanding the casting numbers. One head has a 2843906 on it as well as a 10109, and the other head has 3340 on it and not sure of the other numbers, but it doesn't appear to be 2843906. Both heads appear to be identical. Valves and components are the same. Thanks in advance.
Last edited by wdriver; Dec 2, 2012 at 07:18 PM.
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