This doesn't look good!

[fatherdoug]

I have a thermostat that is sticking open. (Robert Shaw 333-192). Temps only get up to 180 when engine is warm. I thought no problem - order another one. Much to my amazement, I cannot locate a thermostat for a 400 engine.

Flowkooler no longer lists a thermostat for the 400. Tried a lot of other sites, and they all say they are no longer available and will not be reordered. WTH!

I did find a thermostat on a Mustang website for a 351C for (gulp) $55. Is the "C" thermostat interchangeable with the "M" thermostat?

If I remember the Motorcraft RT-139 is the proper replacement? I am having a hard time finding one of those, also.

Does someone have a source for these that they would be willing to share?

[DNFXDLI]

This could suck!!...time to do some looking, thanks for the heads up!

Edit...I'm pretty sure the 351C is the same....flame suit on if I'm wrong!

[fatherdoug]

It sucks cold air already.

[DNFXDLI]

Better than hairy donkey nads

[kiwi f150]

Here you go Doug - this is a 180 deg one but summit have 160 and 195 deg ones too depending on your needs.

http://www.summitracing.com/int/part...view/make/ford

[kiwi f150]

Here's another one for the 400

http://www.autopartswarehouse.com/sh...ord/m-400.html

[fatherdoug]

Thank you, Mark! I also located a NAPA THM 297 that has the flange on the bottom for the M engine internal bypass. I'm not sure about chain store quality, though.

http://www.napaonline.com/Catalog/Ca...297_0293194651

[fatherdoug]

Originally Posted by kiwi f150

Here you go Doug - this is a 180 deg one but summit have 160 and 195 deg ones too depending on your needs.

http://www.summitracing.com/int/part...view/make/ford

Not sure if this one would work? There is no picture of the bottom of the thermostat.

Autparts Warehouse also lists the thermostat for the Windsor engine......

[fatherdoug]

Originally Posted by DNFXDLI

Better than hairy donkey nads

Or hairy sheeps nads. Eric can run with this one..............

[kiwi f150]

Yep i just went back and did some more looking on the summit site - if you go looking for the 385/cleveland series specifically it brings up this one and in the comments on the sidebar there is a chap who say's it fits and it works but it's not quite right.

http://www.summitracing.com/int/part...l/f-250-pickup