Find parts for your rideFind your bikeHide bike finder
Choose from the vehicle applications currently listed in our catalog. Engine sizes refer to the standard engine.
Bike not listed or engine modified? Contact us to check fitment.
KPMI, valve spring kit. .415" lift. Steel top collars
Choose options
The details that matter
Details
Description
Reduces total valve train mass. Great for OEM rebuilds with stock specifications from stock .348" lift to a maximum of .415" valve lift. 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: .415". Installed height: 1.375". Seat pressure 127 lbs. Open pressure: 270 lbs. @ .415" valve lift.
Note: Components are stock style replacement and can be used without modifications.
Specifications
| Unit | KIT |
|---|
Fitment
36-47 Knucklehead (NU)
Part numbers
| Supplier SKU | 524459 |
|---|---|
| Manufacturer part | 20-20425 |
Specifications
| Brand | Kibblewhite |
|---|---|
| Category | Valve springs |
Fitment
Part numbers
Need a hand choosing? Talk to the workshop
