The most expensive part in this assembly is the Cylinder.
Parts such as the Crankcase - Cylinder: Head, Cylinder, Gasket (3jd1) (nas), Pin,dowel (137), P1n, Dowel are included in the G6sb 1970-1972 Crankcase - Cylinder parts fiche.
Of all the components that make up this Crankcase - Cylinder the Ybs66-6 Washer, Plain has the lowest price.