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What's normal for Big Block water temp?

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Old Dec 15, 2008 | 02:15 PM
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Default What's normal for Big Block water temp?

Just curious.. What temperature would be for normal operating range for a Big Block?

I have a 70 454 LS5, and Just would like to know. Operating stats

Correct Water Temp.. What's the high to be safe? 200?

Also normal Oil pressure. PSI

Thanks

Last edited by Augustus; Dec 15, 2008 at 03:56 PM.
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Old Dec 15, 2008 | 07:16 PM
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my car runs about 190,anything past the 212 mark and you got problems.oil pressure when I first start it the needle is pined,after it warms up 60 t0 70 psi
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Old Dec 15, 2008 | 07:37 PM
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The temp in ANY vehicle is regulated by the thermostat if it is working properly.
A 190* t-stat should run at approx 190.
Sly
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Old Dec 15, 2008 | 08:42 PM
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My 69 bb runs 200-230, depending on the outside temp and whether moving or stopped. I have a 180 stat.
My oil pressure when wam is about 35 at idle, and up to 60 while running at speed.
Thermostat determines minimum operational temp. The max temp is determined by the engine itself, the cooling system, air flow, etc.
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Old Dec 15, 2008 | 09:51 PM
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Thanks guys,

So 200 - 212 or to a Max of 220-230 depending on outside temp.

So at just under 200 it should be okay.

And Oil pressure 35 - 60 psi

Thanks good to know.
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Old Dec 15, 2008 | 10:29 PM
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my 69 427 never gets up to 200 it's right about 195. I also have a 160 thermostat
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Old Dec 16, 2008 | 12:03 AM
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You are correct....Stat opens at min... Sorry if i confused anyone.
Sly
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Old Dec 16, 2008 | 12:12 AM
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My 3 '70 LS5's and '71 LS5 typically ran around 210 most of the time and 225 or 230 on a hot day and stalled in slowing moving traffic. I live in California and the average temperature is usually around 79 in spring, summer, fall.
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Old Dec 16, 2008 | 01:03 AM
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guys ,
the values are those indicated by the temp gage. but make a test with an electronic temp gage directly on the engine and check if the reading matches with the cockpit gage.
On both my vettes ( 79 350 and 69 427 ) there was a large mismatch
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Old Dec 16, 2008 | 04:41 AM
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.

No higher than a small block of the same year. Those of non emission controlled engines will run cooler than those computerized and with sensors to control engine performance to meet either State or Federal standards.
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