Manley Manley, Race Master valve kit. Stock – .550″ valve lift

Description

ManleyManley, Race Master valve kit. Stock – .550″ valve lift  501272

fits  84-99 Evo Big Twin (NU)

Steel top collars. Standard size replacement, installs without machining. Kit includes Race Master valves, performance double spring assemblies, steel or titanium top collars and a complete set of Manley’s fully machined chromoly valve keys. Race Master valves are manufactured of stainless XH-426 for exhaust and stainless NK-842 for intake and offer great ultimate tensile strength, combining superior quality at a competative price. Okay for stock or racing upto 8000 RPM.

 

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