Holley Bowl Screw Thread Size?




















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  1. #1
    Join Date
    Mar 2009
    Posts
    24

    Default Holley Bowl Screw Thread Size?

    Does anyone know? It doesn't match up in MM or Sae. Have a couple holes stripped out and looking to get a heli coil kit to fit it. Thanks

  2. #2
    Join Date
    Nov 2009
    Location
    Glennville, GA
    Posts
    745

    Default

    They make this liquid steel stuff. It's an epoxy that they say you can drill and tap. I wouldn't trust it to hold anything strong, but valve cover bolts, fuel bowl bolts....stuff like that it should be strong enough.
    Crew Chief "Tip of the day":
    Most handling problems can be solved by adjusting the screw-ball. It can be difficult to fine tune at times. Explaining yourself loudly and striking it on top of the helmet with a dead blow hammer usually works well.

  3. #3

    Default

    They are 12/24, willeys has Helicoil kits for $35.

  4. #4

    Default

    Holley also has a kit to repair these. Don't leave home without it!

  5. #5
    Join Date
    Aug 2007
    Location
    Festus
    Posts
    67

    Default

    www.blp.com only $24 for the kit with the tap, tool and (10)- 12/24 heli coils.
    Jason Crump
    Crump Racing, LLC.

  6. #6
    Join Date
    Mar 2009
    Posts
    24

    Default

    Thanks guys.. I just didn't have a die to check for #12..

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