Proflow Billet Aluminium Top Water Housing, For Nissan, For Holden, RB30, Polished Silver

Proflow's RB billet aluminium thermostat housing is designed to to suit Nissan RB30 engines, replacing the top radiator hose outlet completely. It also features a -12AN ORB thread so you can run custom braided hose. Supplied with replacement gaskets and bolts.