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Click on image for the lowdown. 
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| | | Forums66 Topics128,033 Posts1,055,531 Members48,425 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | I think the original thermostat was rated at 160 degrees. The information at that link indicates that it stsrted opening at between 148-156 degrees and was fully opened at 176 degrees. See if you can find the specs for your thermostat, you might be surprised when you see what the temperature is when it is fully opened. | | |
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