• COOLANT FLOW
A. Coolant is drawn from the radiator by the water pump.
B. The pump pushes the coolant into both sides of the block.
C. Coolant flows around the cylinders and up into:
D. The heads where it circulates around the exhaust passages and fire deck areas of the head and flows out the front into:
E. The thermostat housing which stops the main flow when the temperature is below about 180°F directing a small portion (bypass) back to the pump. When the thermostat is open the coolant flows to the top tank of the radiator to be cooled.
