Kibblewhite Precision 30-33450 Cylinder Head Service Kit

Generally ships to addresses in the contiguous United States the same business day if ordered by 12:15PM Central Time!

Everything needed to completely refresh/ upgrade the cylinder head.
Include lightweight racing valve spring kits with steel or titanium valve spring retainers, beehive or dual valve springs, steel base washers and Viton valve stem seals.
Black Diamond or White Diamond stainless steel valves for increased longevity (valves are standard size).
C630 bronze valve guides (standard size).
Top end gasket kit including base gaskets, engine case gaskets, exhaust gaskets, head gaskets and necessary O-rings and washers (as needed per application).
Intake: .440in. max valve lift, 1.215in. installed height,40 lb. seat pressure, 147 lb. open pressure, .440in. maxlift; Exhaust: .440in. max valve lift, 1.365in. installed height,70 lb. seat pressure, 203 lb. open pressure, .440in. max lift
Honda CRF450X 2012-2017
Honda CRF450X 2005-2009