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#6
09-13-2009, 04:01 AM
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Re: "0" Stamped SBC Factory Valve Covers
[ QUOTE ]
Interesting. Any idea what the "O" signifies? Jason [/ QUOTE ] Might indicate the inboard side for the engine plant installer, as there's nothing on the top of the raw valve cover (like script) to show the correct orientation, and they can be installed backwards. 
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'69 Z/28 Fathom Green CRG 
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