Manley Upper Valve Spring Collar Kit. Steel for Harley-Davidson
55.61 €
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OEM style replacement precision machined steel valve spring upper collars.
Note: Manley suggests the use of 513884 titanium top collars in high lift applications.
They provide increased strength and reduced inertial mass allowing it to operate at higher RPMs without valve float.
Fits: > 36-84 BT (NU)
Manley Upper Valve Spring Collar Kit. Steel for Harley-Davidson
55.61 €
Note: Manley suggests the use of 513884 titanium top collars in high lift applications.
They provide increased strength and reduced inertial mass allowing it to operate at higher RPMs without valve float.
Fits: > 36-84 BT (NU)