The most reasonably priced component used on the Sv650s 2004 (k4) Usa (e03) Rear Cylinder Head (model K3/k4/k5/k6) is the Pin(6.2x8x11).
Parts such as the Rear Cylinder Head (model K3/k4/k5/k6): Gasket(5.8x13x1.2) (nas), Head Assy,cylinder Rr, Bolt(10x160), Bolt(7x17.5) are included in the Sv650s 2004 (k4) Usa (e03) Rear Cylinder Head (model K3/k4/k5/k6) parts fiche.
This REAR CYLINDER HEAD (MODEL K3/K4/K5/K6) assembly utilises twelve Bolt(6x39)(s) - the highest specified component.