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.

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MILODON Thermostat, 180 Degree, High-Flow, Copper/Brass, For Chevrolet, For Ford, AMC, Olds, For Pontiac, Each

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