KPMI, valve spring kit. Lift .415". Steel upper retainers

Reduces total valvetrain mass. Ideal for OEM rebuilds to factory specification. The springs are made from the highest quality chrome silicon wire, shot-peened and heat-treated to maximise fatigue life. The kit includes springs, upper retainers, lower retainers and valve keys. Maximum valve lift: .415". Installed height: 1.375". Seat pressure: 129 lbs. Open pressure: 272 lbs. @ .415" valve lift. Note: For .565" diameter valve guides.


Specifications


Brand
Kibblewhite


Application
66-E79 Shovelhead (NU)


Sales unit
Kit


Material
Steel


Packaging weight
0.671 kg


HS Code
84099100


Motorcycle family
BIG TWIN, FX


Original name
KPMI, valve spring kit. .415" lift. Steel top collars