I read this in other posts on overheating but need a quick update what size thermostat is reccommended and does the spring side go in the head........thanks

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1964 Dodge Dart 270 four door. Three speed automatic 225 Slant with a Carter BBS carb.

I'd say a 180-195, and yes..

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MRO....

Cheap, Fast, Reliable.... Pick 2...

I concur with the above statement!

Ok thanks it had a 160 in it, but after the reading on overheating I wanted to go with a reccommended 180-195.......Thanks

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1964 Dodge Dart 270 four door. Three speed automatic 225 Slant with a Carter BBS carb.

"180-195" doesn't mean anything. That's two different thermostat temperatures.

180° is the correct and optimal choice. Preferably Stant SuperStat #45358. You can use a 195° thermostat, but it will tend to cause and/or aggravate hot-start/hot-idle issues -- this is the reality of running yesterday's car on today's gasoline. 160° or no thermostat at all is never the correct choice.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

Thanks for clarifying that Dan...........

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1964 Dodge Dart 270 four door. Three speed automatic 225 Slant with a Carter BBS carb.

if i am running a 195 because of simple ignorance, could that cause overheating at highway speed? just wondering if i tried to fix the problem with mine the wrong way.

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-Christopher

"Gray Ghost"-1970 Dart.
"Frederick II"-1994 Geo Metro.

I run 195s in my cars. It should not cause overheating on the hwy. Check that your gauge is not just reading high too.

Mileage will generally be better w/a 195, but as Dan said you can have hot starting issues.

Lou

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Home of Slant6-powered fun machines since 1988

No.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

Installed a 180 degree thermostat, the Stant Dan suggested. So far so good seems to operate better then the 160 degree.......again thanks for all the responses and help.

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1964 Dodge Dart 270 four door. Three speed automatic 225 Slant with a Carter BBS carb.