Power Valve Block-Off Plug
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Mr. Gasket Power Valve Block-Off Plug

Part No. 1510 Warranty Details  

Fit of this part varies by vehicle & equipment specs Type of Fit

Fits Holley carburetors, includes a teflon washer.

Product Features:
  • Carburetor components
  • Power valve block-off plug
  • Includes teflon washer
  • Skin packaged
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1 Question | 1 Answer
Displaying question 1
  • Q:

    how does the block off valve work and will I still have good performance around town ?
    Asked on 11/21/2013 by david from coquille,or

    1 answer



      That's a great question David! Racers sometimes prefer to race their cars without using a power valve. In these cases, the only way to properly block off the power valve circuit is with one of these power valve plugs from Mr. Gasket. They'll fit any Holley carburetor with 1/2-inch X 28 threads and they come with a new gasket. The fit applications with Holley Carburetor models like: 2300, 4150 HP, 4150, 4160, 4165, 4175, 4180, 4500 HP and 4500.

      Answered on 11/24/2013 by Morgan from AAP
Displaying question 1

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