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.

More From This Category

Proflow Fitting, 1/2in. Male Barb To -10AN Adaptor, Blue

Proflow Fitting, 1/2in. Male Barb To -10AN Adaptor, Blue

$18.98

RTS Differential 9", True Grip Pro LSD Traction System, 28-Spline, 6 Helical Gear, For Ford, 9 in, Each

RTS Differential 9", True Grip Pro LSD Traction System, 28-Spline, 6 Helical Gear, For Ford, 9 in, Each

$832.30