T Stat Temp?

[Cummins12V98]

I am removing my antifreeze tank off to gat a hole fixed. It sets on top of the intake where the T Stat is located. My temp running in the SanJuans are on the top side of 160. No idea what temp the Stat is. If it’s a 180 does that sound right?

Looking for proper stat temp for 350 with Edelbrock manifold and carb.

Thanks

[gordo]

More than likely its a 140. The will run hotter than the thermostat. I ran a 140 on my 350 and it would maintain 160-165 and when I dropped down to idle it go down to 140-145.

[Cummins12V98]

Is it fine to be running 165 cruising or would it be better hotter like 185 or so?

[noluck]

with a heat exchanger there is no reason to run it cooler, if you had raw water cooling then yes 160 the reason for that is salt water gets more corrosive the hotter it gets

[Cummins12V98]

Ok to be clear noluck should I keep it as is since I do have a heat exchanger or is it better to go hotter and if so what temp?

Thanks

[noluck]

the 180 is good

[Bill V]

On a fresh water cooled engine it is best to keep it running as close to 180-190 as possible. They'll last longer and get better performance numbers including fuel mileage.

[Cummins12V98]

Thanks guys!!!

[Cummins12V98]

Another "T" stat question! The 301 has 3 bypass holes, the 308 does not. What would be the better stat for my GM 350?

I replaced the 180 with another and vague reads the same. I hit it with my Fluke temp reader and it was 180+, so sending unit (new) or gauge is off.

I just want a QUALITY stat as everything made is just junk these days and the "T" stat is kinda sorta important!!!


EMP/Stewart Components 301 - EMP Stewart High Performance Thermostats


Compare
Thermostat, 180 Degree, High-Flow, Copper/Steel, 3 Bypass Holes, Each

EMP/Stewart Components 308 - EMP Stewart High Performance Thermostats


Compare
Thermostat, 180 Degree, High-Flow, Copper/Steel, Each