Reduces total valve train mass. Great for OEM rebuilds with stock specifications. 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: .400″. Installed height: 1.245″. Seat pressure 95 lbs. Open pressure: 330 lbs. @ .400″ valve lift.
KPMI, valve spring kit. .400″ lift. Steel top collars
€172.20
57-E83 XL Sportster (NU)