KMMI VALVE SPRING KIT .400 LIFT

KPMI, valve spring kit. .400" lift. Steel top collars

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.

Fits: > 57-E83 XL (NU)