Kibblewhite

Black Diamond? valves are CNC machined from one-piece forgings of EV8 Stainless SteelBlack Diamond? proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and...

Black Diamond? valves are CNC machined from one-piece forgings of EV8 Stainless SteelBlack Diamond? proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and...

Extensive R&D on all applications to provide high-performance components that last longer than OEMSuper-clean silicon wire used in valve springs is ground, not shaved, and X-rayed at regular...

Precision-machined from C630Compatible with no-lead fuel and accept any type of valve-stem materialProvide maximum service with chromed valve stemsFeature a tapered nose design for maximum bearing...

Precision-machined from C630Compatible with no-lead fuel and accept any type of valve-stem materialProvide maximum service with chromed valve stemsFeature a tapered nose design for maximum bearing...

CNC-machined dowels used for locating cylinder headMade in the U.S.A.

CNC-machined dowels used for locating cylinder headMade in the U.S.A. Harley-Davidson -- 1200 Custom EFI XLC -- (2016, 2015, 2009, 2007, 2013, 2010, 2012, 2014, 2008, 2011, 2017, 2003, 2019, 2004,...

All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistanceMade in the U.S.A. Yamaha -- YFM...

All valve seals are made of 100% solid Viton® for long lifeMeet or exceed OEM specificationsWhen using Kibblewhite spring kits, Kibblewhite valve seals must be used because of spring clearancesMade...

For use with intake and exhaust valve guidesRetain their ability to seal in adverse conditionsPTFE seals feature a metal jacket with choker springMade in the U.S.A. Harley-Davidson -- 1200 Custom XLC...

Viton intake/exhaust sealsMade in the U.S.A. KTM -- 250 SX-F -- (2013, 2015, 2014); KTM -- 250 XC-F -- (2014, 2015, 2013)

Viton intake/exhaust sealsMade in the U.S.A. Yamaha -- YZ 450 FX -- (2016, 2017, 2018); Yamaha -- YZ 450 F -- (2016, 2014, 2010, 2011, 2013, 2017, 2012, 2015)