Kibblewhite 80-82070 Cylinder Head Service Kit

Max replacement valve lift (intake/ exhaust) .450in., installed height 1.185in., seat pressure 46 lb., open pressure 155 lb.
4 titanium retainers, 4 replacement valve springs, 4 steel base washers, White Diamond intake/ Replacement Exhaust Valves (2 each), 4 C630 replacement valve guides, top end gasket kit.

Everything needed to completely refresh/ upgrade the cylinder head. Include lightweight replacement valve spring kits with steel or titanium replacement valve spring retainers, beehive or dual replacement valve springs, steel base washers and made with Viton™ replacement valve stem seals. Black Diamond or White Diamond stainless steel valves for increased longevity (valves are standard size). C630 bronze replacement valve guides (standard size). Top end gasket kit including base gaskets, engine fits Case™ gaskets, exhaust gaskets, head gaskets and necessary O-rings and washers (as needed per application).

This item fits the following vehicle applications:
2016-2021 fits YAM WR450F
2014-2019 fits YAM YZ450F
2016-2020 fits YAM YZ450FX