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How hot should my engine run?

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  • How hot should my engine run?

    I have a 94 351W out of a Bronco. When I took it out last weekend it ran around 200-205. It never went above that so I am guessing it likes that temp. Is this normal for a late model 351?

  • #2
    Re: How hot should my engine run?

    my 69 runs about that hot on the trail but usually a bit cooler on the street.
    1968, 69 351W,NP 435, Stak 5.22, D44 with 4.10's, chebby discs and a detroit, 9" with 4.11's and a lockright. 35" MTR's, TRO, WH cage, ps, pb, 3.5" susp, 2" body lifts, pile of parts in the garage, empty wallet!

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    • #3
      Re: How hot should my engine run?

      Sounds about right for an EFI motor as they require a hotter thermostat. My carb'd 351 seems to hang around 170 degrees no matter how its being driven (freeway, trail, town).
      1970 Bronco
      My build thread

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      • #4
        Re: How hot should my engine run?

        [QUOTE=CityHick;61645]Sounds about right for an EFI motor as they require a hotter thermostat. QUOTE]

        x2

        My EFI 302 runs 190-200 all the time. I remember when I switched over from carb to EFI, I thought I had an over heating problem since the carb 302 hovered at 160-170 all the time. The up side is the heater works better now in the winter...
        1969 EB, 88 Speed density EFI 302, HP D44 front w/ARB, Radius arm long arm, NP435, D20, D60 w/power lock rear, 4link rear with 4" stretch, Front and rear bumpers made by me.

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