Of all the components used in this assembly the Crankcase,lower is the most expensive.
The twenty-nine Cb450sc Nighthawk 1985 (f) Usa California Lower Crankcase component parts are all listed in this schematic.
A sample from the products for the Lower Crankcase include: Bolt,flange,6x60, Bolt,flange, 6x32, Spring,element, Bolt,flange,6x32.