operating temperature

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500, 472, 425, 368 Discussion, operating temperature in Cadillac Engine Discussion; I was wondering whats the operating temperature on a big block caddy engine??...
  1. #1
    cadillac_81 is offline Cadillac Owners Member
    Join Date
    Nov 2012

    operating temperature

    I was wondering whats the operating temperature on a big block caddy engine??

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  3. #2
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
    Automobile(s): 2002.5 F55 STS - 65500 miles, 2014 Explorer XLT FWD
    Join Date
    Feb 2006
    MD Eastern Shore, Kent Island

    Re: operating temperature

    Go to a parts store and look up the thermostat for that car, that engine in the references that hang on the parts racks.

    IF your engine calls for a "180 degree" thermostat the normal engine operating temperature range will be 180 +/- to 200 +/-.

    Most emissions controlled (designed) engines run at about 190 - 200. Low temp thermostats (140, 160 degrees) lead to premature engine wear, moisture in cold oil, and poor fuel economy.

    Update your profile to show your car, year, engine, maybe approximate location.

  4. #3
    drmenard is offline Cadillac Owners Connoisseur
    Automobile(s): 95 fleetwood 81 deville
    Join Date
    May 2003

    Re: operating temperature

    My 472 really likes it at 180 degrees...

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