Thread: 010,020 casting marks?
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01-11-2005 02:32 PM #1
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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 04:11 PM.
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