Spec -o- fuel pump
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500, 472, 425, 368 Discussion, Spec -o- fuel pump in Cadillac Engine Technical Discussion; Can anyone tlell me the specs of my fuel pump? such as gph? eh? eh?...
  1. #1
    MMNineInchNails's Avatar
    MMNineInchNails is offline Cadillac Owners Enthusiast
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    Spec -o- fuel pump

    Can anyone tlell me the specs of my fuel pump? such as gph? eh? eh?

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    lux hauler is offline Cadillac Owners Connoisseur
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    I looked at NAPA's online catalog and here's what I found....
    Attributes: Fuel Pump (OE Mechanical Type)
    Pressure Rating: 5.25 lb - 6.5 lb
    Gallons Per Hour: 20

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    MMNineInchNails is offline Cadillac Owners Enthusiast
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    thanks a lot lux!

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    lux hauler is offline Cadillac Owners Connoisseur
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    That's what they listed as a replacement.
    A factory pump may not be exactly the same but I would think it's close.

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    just wanted to know because i'm going to put a holley electric fuel pump on. probably the 97gph one...

  7. #6
    davesdeville's Avatar
    davesdeville is offline Banned
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    That seems like overkill, even on a 472.

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    lux hauler is offline Cadillac Owners Connoisseur
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    Check the fuel pressure recommendations for your carb. If the pressure of the pump that you get is more than is suggested for the carb, put a pressure regulator in line.

  9. #8
    MMNineInchNails's Avatar
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    overkill? pshhh. My friend put an electric fuel pump around that level, mabye more on his 430 with a 750 carb(same as mine)

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