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Old 04-10-2016, 05:56 PM   #1
jmtaylor11
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Join Date: Mar 2013
Posts: 1
Default Spark plugs for Offy 1069-400 heads ?

What spark plug do I use with Offenhauser 1069-400 aluminum finned heads for my 1951 Ford? It appears that I need a plug with about 5/8 inch reach.
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