Reduces total valve train mass. Great for stock & racing performance builds. The springs are manufactured from the highest quality clean chrome silicone wire; shot peened and heat treated for maximum fatigue life. Kit includes springs; upper collars; lower collars and valve keys. Max valve lift: .600″. Installed height: 1.810″. Seat pressure 163 lbs. Open pressure: 361 lbs. @ .600″ valve lift.
KPMI, valve spring kit. .600″ lift. Steel top collars
€203.30
84-99 Evo Big Twin; 99-04 Twin Cam; 86-03 XL Sportster (NU)