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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!
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| | | | Joined: Apr 2008 Posts: 19 New Guy | | New Guy Joined: Apr 2008 Posts: 19 | Does my 1944 1 1/2 ton 235 engine work with a pressure cap? What pressure? Also, what temperature thermostat is used? | | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | Usually a very low pressure cap. And 180 degree is a normal thermostat, but you may consider a 160 if you haul a lot or drive when it's really hot out.
Grigg | | | | | Joined: Apr 2008 Posts: 19 New Guy | | New Guy Joined: Apr 2008 Posts: 19 | My ranch is at 6700 feet, and most of my driving is at altitudes above 5000 feet, which means water boils at about 200 degrees F. I purchased a 160 degree thermostat and a 4 psi radiator cap yesterday. Do you think this might be about right for my situation? | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | very unlikely you'll ever get that thing to overheat if everything is in good condition - if the rad is the same as I had on a 46, it should have a NO pressure cap - careful you don't pop some seams
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