Manley Manley, valve spring top collar set. Steel

Description

Manley Manley, valve spring top collar set. Steel

36-84 Big Twin (NU)

OEM style replacement precision machined steel valve spring top collars. Note: Manley suggests the use of 513884 titanium top collars on high lift applications. They provide increased strength and reduced inertia mass which allows you to run higher R.P.M.’s without valve float.

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