Top End Engine Gasket Set - Honda CB500 CB500K CB550 CB550F CB550K 1971-1978 Top end gasket set for the Honda CB500 &amp; CB550 fours. If you're doing an engine rebuild this is a great set to have on hand. ISO 9001 100% Non-asbestos gaskets Fits Honda: CB500K - 1971-1973 - CB550F Super Sport - 1975-1977 - CB550K - 1974-1978