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14+ YFZ450R YFZ 450R Ported Assembled Head Porting Assembly Kibblewhite Valves


Compatible Vehicles
Submodel Year Make Model
-- 2021 Yamaha YFZ450R
-- 2020 Yamaha YFZ450R
-- 2019 Yamaha YFZ450R
-- 2018 Yamaha YFZ450R
-- 2017 Yamaha YFZ450R
-- 2016 Yamaha YFZ450R
Special Edition 2016 Yamaha YFZ450R
-- 2015 Yamaha YFZ450R
-- 2014 Yamaha YFZ450R
Team Yamaha 2014 Yamaha YFZ450REL
-- 2021 Yamaha YFZ450RSE
-- 2020 Yamaha YFZ450RSE
-- 2019 Yamaha YFZ450RSE
-- 2018 Yamaha YFZ450RSE
-- 2017 Yamaha YFZ450RSE
Special Edition 2015 Yamaha YFZ450RSE
Special Edition 2014 Yamaha YFZ450RSE
Custom Graphics 2013 Yamaha YFZ450RW
Custom Graphics 2012 Yamaha YFZ450RW


 - BRAND NEW OEM Yamaha cylinder head**
- Full race port and polish
- Complete assembly with valve adjustment
- Kibblewhite 80-80206 valve spring kit with titanium retainers
 - Kibblewhite stainless intake and exhaust valves
- Valve keepers/Cotters
 - Valve stem seals
 - Online and phone tech support

It will make a great addition to your stock or built motor.  

Please check your order thoroughly when receiving it.  If for any reason at all you are not 100% happy please contact us right away so we can help resolve the issue.  If for any reason at all you are not happy with your order you are welcome to return it UNOPENED NEVER INSTALLED COMPLETE (NOTHING MISSING) AND BRAND NEW IN THE ORIGINAL PACKAGING for a FULL REFUND! *If we receive your order back incomplete, packaging ripped open and/or parts missing we will have to deduct our loss from your refund.

**DO NOT ATTEMPT TO INSTALL CAMS OR INSTALL THIS HEAD YOURSELF.  This head should only have the cams installed and be assembled by a qualified, experienced mechanic.  Warranty does not cover any failure that is a result of improper cam installation, incorrect timing being set, improper break in, improper tuning, or misuse.  For any warranty to be considered the head must be sent in with an itemized invoice or receipt from a shop or dealer for the cam installation and head install on cylinder.  We can not warranty anything based on phone calls or photos alone.