The Cylinder / Cylinder Head assembly is constructed from several parts from which the Cylinder Comp. is the most expensive.
Some items from this specific schematic: Plate,decomp Bolt, O-ring,3.7x1.5, O-ring,1.4x3.6, Plug,spark(bp6hs).
This CYLINDER / CYLINDER HEAD assembly utilises four Bolt,flange,6x100(s) - the highest specified component.