LS1 Coolant Direction?
LS1 Coolant Flow Direction? I've been trying to determine which way the coolant goes through the radiator. One place in the shop manual says the thermostat housing lets coolant into the engine, but in another place it says the T-stat housing lets the coolant flow out of the engine into the radiator . . . which is right? 
Last edited by Cal; Mar 20, 2004 at 03:30 PM.
The water goes into the motor thru the lower hose thru the motor & out the upper hose thru the radiator.
The thermostat regulates temperture by controlling the amount of cooled water the water pump can pull from the radiator.
The thermostat regulates temperture by controlling the amount of cooled water the water pump can pull from the radiator.
