What thermostat to choose for 350 and quadrajet

[kikkegek]

Originally Posted by 454HO

Not sure if you are aware or not, but the heater core bypasses the thermostat. I see in the second photo of post #14 that one of the heater hoses is hooked up to the intake manifold water passage just to the left of the thermostat housing. Since you do not show an overall pic of the engine bay it is impossible for me to see if that hose goes to the heater box on the firewall and then a second hose goes back to the radiator as it is supposed to. Assuming it does, that is definately a path for coolant to flow and potential source of heat loss, especially if you have the cabin heater on while you are driving.

I know which hoses you mean!
they are for the evaporator of my LPG-system.

here's a overal pic of it. but thanks!
ignore the two red arrows please.