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Thread: Block Question

  1. 03-18-2012, 04:37 PM #1
    superman_jjs
    superman_jjs is offline Junior Member
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    Block Question

    Ok, I have found the block casting numbers but now I have another question. I have found the listings for the casting numbers but I am wondering what the "GM 4" casting means?

    Does anyone know what that means?

    Thanks,
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  2. 03-18-2012, 08:11 PM #2
    raycow
    raycow is offline Senior Member
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    That number is used to track the machine that made the mold, in case a problem is discovered with the casting.

    Ray
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