Description
Fastheads offers new OEM Kawasaki cylinder heads with Kibblewhite stainless steel Valve and their spring kit. The new head will come professionally assembled with the Kibblewhite White Diamond intake and exhaust valves, Heavy Duty High REV Kibblewhite spring kit with Ti retainers, hardened spring locators, OEM cotters, Viton MX guide seals, cam caps, and exhaust studs. We also professionally assemble and vacuum test every head before shipping to you.
The Kibblewhite Spring Kit is expensive but absolutely necessary to support the 70% heavier Kibblewhite Stainless valves compared to the original Titanium valves. Due to the high RPM of the KX250F we suggest staying with Titanium valves and the lighter OEM springs as originally designed. Fastheads offers an upgraded Titanium valve package with Chromium Nitride PVD coated valves that last just as long or longer than stainless without the 2-3 horsepower lose. About $100 more.
If you do not purchase the complete head option you will need to install your cams, lifter buckets, and cam retainers. You will also need to set your valve lash. If you don’t have a shim kit and the necessary tools you can purchase them from our store page.
