Where on the Block is the number stamped?

Where on the Block is the number stamped?
  • gellersgellers November 2011

    I have a 70 Alglas 33. She has twin 350 crusaders in her. They were removed, rebuilt, and reinstalled, prior to my purchase. It seems as if the number plates have vanished when the rebuild was done.
    The question I have for those of you who know these engines is:
    Where on the block will I find the ID number stamped for these engines?
    Thanks
    gellers
    HeartBeat Alglas 33
    Lake Ontario

  • Rich_PRich_P November 2011

    Just above the bellhousing

    36' Sportfish on Eastern Long Island
  • gellersgellers November 2011

    Thanks for the information. It is a start. The casting number ( 3970010) behind the bell housing tells me that the block was cast for a Corvette engine from the years of 1969 to 1979.
    I did end up finding the engine block stamped number on the right hand side at the front of the block.
    Now to figure out how to decode it.

  • miss+nancymiss nancy November 2011

    That is easy, call your local GM dealer.

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