MANGANESE VALVE GUIDE BROWN : OPTIUNE - STANDARD

Precision-machined guidesManganese bronze guide material is softer than nickel aluminum bronze valve guidesExcellent heat conductivity which promotes long valve lifeGuides can be easily reamed with a battery-operated or electric drill and finished with a high-quality ball honeEliminates the need for expensive honing equipment that would be required for nickel bronze valve guidesMachined to accept OEM and aftermarket sealsMade in the USA

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