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Old 02-29-2004 | 05:14 PM
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Antique
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Default RE: Which ngk plug for brison 3.2

The RD series plugs are for a tapered seat, and have no gasket..The RC series have a flat seat with a gasket..You can use either in the engine, but the taper seat plug will have to be tighter to not leak around the bottom...The engine was made for a plug with a washer...