The Right Cylinder Head assembly is constructed from several parts from which the Head Comp,r.cyln. is the most expensive.
Some items from this specific schematic: Bolt,flange,6x22, Bolt,flange,6x22, O-ring.8.7x1.8, Screw,cross 5x8.
The component with the lowest price in the RIGHT CYLINDER HEAD schematic is the Screw,cross 5x8.