165 degree Thermostat vs 180degree

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Posted by Dave on Thursday, April 08, 2004 at 1:04PM :

1948 B-1-PW
230 Flathead 6, Serial T-137-8521

In the PIF's, both 160 degree and 180 degree thermostats are listed. In my Mopar parts book they list 165 degree thermostats for engines up to T137-21560 and 180 degree thereafter.

Why did the temperature increase from 160/165 to 180 degrees for the same motor?

What was changed on the motor to allow it to run hotter?

Could I put in a 180 in lieu of the 165 or vice versa?

Follow Ups:

Re: 165 degree Thermostat vs 180degree - Vaughn 11:40AM 04/09/2004

Re: 165 degree Thermostat vs 180degree - Glen 11:10PM 04/09/2004
- Re: 165 degree Thermostat vs 180degree - Vaughn 11:46PM 04/09/2004

A theory... - Clint Dixon 9:25AM 04/09/2004

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