The Bolt(6x39) is the most widely applied product in the GSXR750 1991 (M) (E01 E02 E04 E15 16 17 18 21 22 24 25 34 39 53) CYLINDER HEAD ( twenty times ).
This schematic depicts all components used in the Gsxr750 1991 (m) (e01 E02 E04 E15 16 17 18 21 22 24 25 34 39 53) Cylinder Head partslist.
The Cylinder Head is made up of components including this Head Assy,cylinder which is the most expensive.