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

Ideal for stock-spec OEM rebuilds. This is a stock replacement valve spring kit and is suitable up to a valve lift of .415" with a moderate seat pressure of 129 lbs. The springs are manufactured from the highest quality clean chromium-silicon wire, shot-peened and heat treated for maximum fatigue life. The kit includes springs, upper retainers, lower retainers and valve locks. Maximum valve lift: .415". Installed height: 1.375". Seat pressure 129 lbs. Open pressure: 272 lbs. @ valve lift of .415".


Specifications


Brand
Kibblewhite


Application
48-65 Panhead (NU)


Sales unit
Kit


Material
Steel


Packaging weight
0.653 kg


HS Code
84099100


Motorcycle family
BIG TWIN


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