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Thread: Help id GM Big Block please
          
   
   

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  1. 05-09-2011 09:07 PM #1
    Dean Olson
    Dean Olson is offline Registered User
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    Help id GM Big Block please

     



    I have a BB in my 72 GMC C2500 pickup. It's supposed to have the 402 but I don't think so. What I can get off the back drivers side casting is: 82406. I can read it very well but the closest I can find online is 3902406 which identifies it as a 67 396 out of a camaro or chevelle.

    On the front of the passenger side block is stamped: TI003IV & 7(0)4258(6)1 or may be 7(3)4258(8)1. I added the parentheses to emphasize the numbers I can't read clearly.

    What have I got here?

    Thanks in advance
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  3. 05-09-2011 09:41 PM #2
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    techinspector1
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    '65-'68 396 325hp TH auto
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