I'm hoping to flush out the cooling system on my 2000 Malibu with a 3.1 liter engine and am hoping to put in a 180 degree thermostat. I've been to all of the local auto parts stores and they say there isn't such a thing for that year car. I know it isn't a standard option for the car, but does anyone know if there is a 180 degree thermostat that will fit this car? If so, what is the make and part number?

Thanks,
WoodChipper.

I have been looking for one also. I have not been able to find one. I tried Hypertech. But they said there was not enough demand to produce any performance upgrades.

by the way the 3100 is not the same as a 3.1

unless you hate good mileage and low emissions, I wouldn't put a 180 stat in that car. The computer will think the engine isn't properly warmed up and will throw off fuel and ignition curves.

by the way the 3100 is not the same as a 3.1
3100 cc's = 3.1 liters - same thing

What makes you think a 180 degree t-stat would be a performance upgrade? It ain't like the old days anymore. The ecm wants the engine running around 200 degree's.

It isn't a performance upgrade. Hypertech sells performance upgrades and lower temp thermostats. Thats the company that I contacted. After performance upgrades you might want to put a lower temp thermostat. Motor are running hotter in newer vehicles but that is for emissions. Still doesn't mean that it is good for the motor.

3.1=gen2

3100=gen3


differnce is bigger than you might think

you go to a auto store ask for a part for the 3.1 and not the 3100 sfi (sequential fuel injection) your screwed the parts are just not the same and the block is also completly differnt

They suggest the 180 stat in some vehicles because the leaner air/fuel mixture their aftermarket chips uses will cause the car to overheat. IF you have no other mods, a 180 stat is a performance reducer, not performance enhancer.

if you do find a 180 stat i wouldnt use it your computer will throw a code and shut down the temp gauge i no my stat went out and stuck open and the temp was bellow norm and the gauge stoped working until i replaced it.

1.0 L = 1000 cc's
3.1 L = 3100 cc's
This is a standard conversion factor.
BUT 3.1 L usually is designated for MPI
3100 normally SFI