The "conversion" gasket set is the English term for a botton-end gasket set, and includes everything below the head gasket. This is a genuine OEM Payen set for pre-A+ engines, and includes the superior molded 12A1175 tappet cover gaskets to prevent leakage. Ref: EF075.
Set does not include red 13H2934 rear main oil seal, which must be ordered separately. To rebuild a complete engine, both a head gasket set and a conversion set must be purchased.