Thread: Spark plugs for Offy's
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Old 01-16-2011, 01:35 PM   #11
19Fordy
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Default Re: Spark plugs for Offy's
The NGK GR 2635 spark plug has an 11/16 ' reach with the washer. I use them on my MCF flathead heads. Perhaps they are long enough for Offy's.
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