Question about 1999 Ford Super Duty F 450

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I have a bad power valve in my 4 barrel carburater engine is a 370 v. 1981 i would like to buy just the power valve and change it myself without rebuilding the entire carb is this possible

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  • hogger38 Mar 01, 2015

    You can buy the valve separate either post the carb list number or take the HOLLEY list number to a Hygrade parts supplier and the can get you the proper valve. You will need 2 gaskets to remove the front float bowl and metering plate to change the valve. It screws into the primary metering plate. It takes a inch 12 point socket. If you post the Holley Carblist number I can give you the Hygrade Power Valve number.

  • hogger38 Mar 01, 2015

    You can buy the power valve separate. Either post the Holley listr number and I can give you the Hygrade valve number or take the carb LIST number to a Hygrade supplier and they can get you the valve.You will need 2 gaskets to remove the front float bowl and metering plate. The valve screws into the metering plate using a 1 inch 12 point socket. I believe there is a short brass pump transfer coinnecting the metering plate to main body with an ?`ring on each end. A drop of oil on the rings will make it go back in without damaging the ?`rings



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Napa sells component parts for carbs.

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