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Thread: 010,020 casting marks?
          
   
   

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  1. 01-11-2005 03:32 PM #1
    lost
    lost is offline CHR Member
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    Question 010,020 casting marks?

     



    Some blocks have a "010" above a "020" under the timing chain cover, I understand that to make the block more desirable over one without these casting marks, is that true? If so, Why?
    I was told it represented 1%zinc and 2%nickle added to the block during the casting process.
    Thanks,
    LOST
    Some blocks meaning Chevy small blocks.
    Thanks
    Last edited by lost; 01-11-2005 at 05:11 PM.
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