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Old 05-21-2002, 07:51 PM
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Question Running temps

What do you guys consider a good range to run a sbc in?

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Old 05-21-2002, 07:59 PM
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I usually see them about 180 to 210 or there abouts'. Down here in Texas they run a little hotter. Just remember that if the engine temp goes above 212 to be careful taking the cap off because the water will boil very fast and could burn you
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Old 05-21-2002, 08:01 PM
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I run a 354 Hemi and am happy when it stays between 180 -220F. Any lower and cold damage (condensation) may occur. Sulfuric and other acids are generated from burning gasoline and will condense on any metal it encounters that is less than 230F. That's why mufflers quickly go south when a car is run short distances and not allowed to get nice and hot. It could go higher (with 13# cap & 50% antifreeze could easily go to 230 with no boiling or heat damage problems) but I get nervous! Chevy 350 should be the same.
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Old 05-21-2002, 08:17 PM
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I was just wondering. I live in Tucson, Az, and as you might guess, it gets pretty warm round here. My truck has generally ran between 180 and 210 for the last month and a half as the weather has warmed up after running no more than 180 all winter. Kinda got me a little worried, but i guess its no big deal. As far as the rad cap goes im covered, has a 16# cap on it right now and the coolant is at aboout 50/50, and mabey a little more watter than coolant.
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Old 05-22-2002, 01:43 AM
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when my 350 was rebuilt it did:nt take long before it was at 200 on a summers day, sometimes would very between 200-220.now its a bit looser it only goes to 200 if i'm in trafic and normally sits on 180 when moveing. i have a extra fan(electric) on a switch so when i'm in trafic i switch it ...it helps.my temp sensor is in the front of the manifold.winter it never gets above 180.
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