Description & Size Guide
Reduces total valve train mass. Great for racing high lift 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: .480". Installed height: 1.310". Seat pressure 158 lbs. Open pressure: 340 lbs. @ .480" valve lift. Note: Kit must be used with Kibblewhite Precision engineering (KPMI) valve guides. Stock dimensions valve guides must be shortened. Valve guide machining instructions are included with this kit.
36-47 Knucklehead (NU)
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