Parts such as the Cylinder Head: Bolt,flange,6x28, Pin Knock 10x16, Sparkplug (dr7es), Guide,in.valve are included in the Cb650sc Nighthawk 1982 (c) Usa Cylinder Head parts fiche.
The Cylinder Head is made up of components including this Head,cylinder which is the most expensive.
Check out any of the twenty-seven Cylinder Head components enlisted.