12-03-2017, 09:24 PM
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Yenko Contributing Member
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Join Date: Jan 2001
Location: Illinois
Posts: 21,025
Thanks: 70
Thanked 3,756 Times in 1,507 Posts
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The engine block deck stamp.
Here's one.. http://www.chevelles.com/forums/60-w...%93ls6%94.html
136370K126847
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