The component with the lowest price in the VALVE-ROCKER ARM (SOHC) schematic is the Nut, Tappet Adjg.
On this parts fiche the Cotter, Valve is the most specified component.
sixteen components are listed in the schematic for this Civic 1997 (v) 4dr Dx (ka,kl) Valve-rocker Arm (sohc) .