What Is The Normal Temp Of A Running 5.7L V8 Engine At What Temp Does Damage Occur

Posted in Perfomance Parts | Asked on Jun 21, 2010

I’ve just installed a jasper crate engine(5.7L) in my ’99 Chevy Tahoe. It’s running between 180 and 210. Is 210 too hot?

There are 4 Answers for "What Is The Normal Temp Of A Running 5.7L V8 Engine At What Temp Does Damage Occur"

  1. Jeff G says:

    I used to have a Suburban with the 5.7L Vortec in it. 210 was normal/average.

  2. Matthew says:

    No that sounds right. The computer has to have it about that hot so the thermostat opens up at the right time. If it runs to cool your gas mileage will drop. If it hits the red you have problems. My 4.3 runs at about 220.

  3. gormana99 says:

    thermostat should open at 190 engine temp will vary depending on conditions. For example if you are running the a/c the ambient temp, towing, driving conditions. To hot starts around 240 to 260. I am a ASE certified GM mechanic.

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