OCT 09-5500 - WATER OUTLET RESTRICTER
This anodized aluminum flow restrictor mounts under the water outlet on the intake manifold (where the thermostat is normally placed). It is designed to produce much less turbulence in the water flow and improve cooling. Set contains three plates with 5/8", 3/4", and 1" ID holes for optimum coolant flow. Restrictors are 2 1/8" outside diameter.