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Old 03-05-2019, 06:41 PM   #16
72c20customcamper
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Join Date: Jul 2018
Location: Catskill Mountains,NY
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Re: How hot do Big Blocks normally run?

Quote:
Originally Posted by Steeveedee View Post
I have a 180° thermostat, but pulling a hill with my travel trailer the engine has gotten up to 260°, which is about as hot as would be allowed.. It helps that there is no air in the system and I had a good cap. I don't like it, and went to a truly heavy duty fan clutch, but haven't taken the trailer out for a camp out since I put that clutch on.
I have a 160° I also drilled two 1/16 th bypass holes to help burp the cooling system. But once the stat opens up all the way dont matter. Never use the car when it's cold.
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72 c20 custom camper Husky edition,
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1968 c20 stepside ,85 K20
1977 Suburban sold
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