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Old 11-09-2017, 11:35 PM   #5
Flathead
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Join Date: May 2010
Location: Southern Maine
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Default Re: spark plugs for a Weiand head

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Was the L87YC a plug for the VW beetle? That's what comes to mind. They had a longer reach than the J series but shorter than N series. Best to look in an old Champion catalog.
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