Thread: NGK Plugs
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Old 06-02-2007, 01:55 AM
Chevy454 Chevy454 is offline
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Default Re: NGK Plugs
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Hmmmm... so what's an NGK 'R5671A-8'?? A buddy thinks they will fit the Deuce?

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The difference is the seats (gasketed verses tapered)...the 5671 is for the 840s, the UR5 is for the 291.
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