Big Block Engine ID- the Big P + - NCRS Discussion Boards

Big Block Engine ID- the Big P +

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  • Peter M.
    Very Frequent User
    • February 1, 1984
    • 361

    Big Block Engine ID- the Big P +

  • Harmon C.
    Extremely Frequent Poster
    • August 31, 1994
    • 3228

    #2
    Re: Big Block Engine ID- the Big P +

    The GM-1 or GM-2 was the mold the block came from. The foundry had more than one mold and if poor quality happened they needed to know what mold it came from. Lyle
    Lyle

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