Are there any reliable and trustworthy thermostat brands out there anymore? What do you all use? I am finishing up the recently dyno'ed 469 and need to pull the housing a final time and put in a thermostat. I usually had a few laying around, but I haven't needed one in a long time and I don't seem to have anything new.

Suggestions for a good brand easily bought?
Thanks all,

 

Stant Superstat 180* is what I use.

 

I believe Stant products are good products.

 

I was just reading this thread
https://classicoldsmobile.com/forums...otorad-170578/

And found out Motorad bought out Stant. I may go with the Robertshaw/Flowkooler one.

 

I have been in the heavy equipment industry for some time now. I use a John Deere thermostat. 180 degree that fits in their dozers. Never seen one fail. If interested, the PN is DZ100555

 

Sure! Let me know the part number and I’ll check it out. Thanks!

 

Dz100555

 

Thanks a bunch!

 

The Robert Shaw & John Deere thermostats are the same kind that go in my Ford diesel truck. Currently, I have a Motorcraft part in my diesel truck, but MotorRad 423180 is the same part.

 

I stick with the Robert Shaw high-flow style (or the private labeled ones like Mr. Gasket or flowkooler) . Ironically, that was the OEM design in my parents ski boat with a Ford 351. It stuck this summer (30 years old), the marina only sold the generic thermostat type that we commonly see. Instead of running around 10*F higher than the thermostat rating on the gauge, the boat was running 30*F above the thermostat rating with the new one, especially when skiing. Pulled that junk right back out to go back to the balanced flow design.

 

Thanks Luke! I think that clinches it for me. I'll get one and test it in a pot of water with a thermocouple to my digital meter before I use it just to make sure all is good.

As an aside, as a 16 year old who bought his first car (1970 Impala with a 454, not the SS), I had an out of box failed parts store thermostat. So I took it back and they claimed I didn't know what I was talking about. I told them I had put it in a pot of water on the stove next to another one I had and theirs didn't open but the other one did. They exchanged it. This was in summer of 1981. That was my first car.