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Technical Who can make me a set of throttle blades for an Edelbrock carburetor

Discussion in 'The Hokey Ass Message Board' started by wheeltramp brian, Nov 18, 2022.

  1. wheeltramp brian
    Joined: Jun 11, 2010
    Posts: 2,560

    wheeltramp brian
    Member

    I've got a 650 AVS to Edelbrock carburetor that a customer had on his car with an extremely large cam and compression. To try and make it run in idle the throttle blades were drilled. While this helped for sure it didn't cure it and I ended up putting a four corner idle Holly on it and it's awesome. I need to get new throttle blades for the primaries and secondaries so that the carb will work again. The problem is I spoke with Edelbrock and they will not sell me the throttle blades separately for whatever reason but they would sell me some for a holly go figure. So is there anybody out there that can make me a set of throttle blades and if so I can get you the specs on them thank you. Brian 661-878-0676 20221118_092529.jpg
     
  2. Callmaker
    Joined: Feb 17, 2020
    Posts: 170

    Callmaker
    Member

    Maybe you could just plug those holes? pop rivet? ????
     
  3. X-cpe
    Joined: Mar 9, 2018
    Posts: 1,959

    X-cpe

    Start hunting cheap cores. Maybe PM carbking.
     
  4. 19Eddy30
    Joined: Mar 27, 2011
    Posts: 2,314

    19Eddy30
    Member
    from VA

    Smash rivets ,Solder, lead , brass.JB weld Tig weld just a few choices to fix!
     

  5. Pav8427
    Joined: Jul 30, 2021
    Posts: 146

    Pav8427
    Member

    Look for a local laser shop. Bring yours in and they can reverse engineer.
     
  6. wheeltramp brian
    Joined: Jun 11, 2010
    Posts: 2,560

    wheeltramp brian
    Member

    I'd rather not fill them in or put a rivet in fear of something would drop out.
     
    Lloyd's paint & glass likes this.
  7. wheeltramp brian
    Joined: Jun 11, 2010
    Posts: 2,560

    wheeltramp brian
    Member

    Egads has got me set up with some primary blades already and I'm working on the secondaries. Here's a picture and dimensions 20221118_103002.jpg 20221118_103002.jpg
     
  8. 19Eddy30
    Joined: Mar 27, 2011
    Posts: 2,314

    19Eddy30
    Member
    from VA

    No different than a screw that holds the butterfly in falling out ,a smash rivet done correctly use a tool to set thickness of metal, but can use a hammer and be delicate. methods suggested in the past we're in how to articles in mags.
     
    PhilA and Rand Man like this.
  9. gimpyshotrods
    Joined: May 20, 2009
    Posts: 23,264

    gimpyshotrods
    ALLIANCE MEMBER

    When I get to an actual computer I will look up the specs.

    I might have the secondaries.
     
  10. gimpyshotrods
    Joined: May 20, 2009
    Posts: 23,264

    gimpyshotrods
    ALLIANCE MEMBER

    The Edelbrock carburetor manual is showing all secondaries* at 1-11/16, which is 1.6875".

    Unless the AVS is not in that manul, that is.

    Those secondaries I have.

    *Except for the 800, which are 1-3/4". That is shared with the AVS2 650.
     
    Last edited: Nov 18, 2022
  11. wheeltramp brian
    Joined: Jun 11, 2010
    Posts: 2,560

    wheeltramp brian
    Member

    The AVS secondaries are definitely bigger than the regular edelbrocks. The bore on the secondaries on this are 1 and 3/4 but the actual plate is 1.8215
     
  12. A rivet + JB Weld, good to go.
     
    missysdad1 likes this.
  13. Jethro
    Joined: Mar 5, 2001
    Posts: 1,908

    Jethro
    ALLIANCE MEMBER

  14. saltflats
    Joined: Aug 14, 2007
    Posts: 12,594

    saltflats
    Member
    from Missouri

    Try Nick Smithberg
     
    porkshop likes this.
  15. Illustrious Hector
    Joined: Jun 15, 2020
    Posts: 452

    Illustrious Hector
    Member

    It would take my laser guy 3 days tops, only cause it's brass.
     
  16. TRENDZ
    Joined: Oct 16, 2018
    Posts: 386

    TRENDZ

    most lasers will only cut square to the face. throttle blades are an ellipse with angular edge surface.
    Much easier to make on a lathe.
     
  17. gimpyshotrods
    Joined: May 20, 2009
    Posts: 23,264

    gimpyshotrods
    ALLIANCE MEMBER

    I would get some silicon bronze tig rod that is the same diameter, or as close as it can be, to the hole.

    Cut a short length of it, put it it in the hole, peen it down on both sides, and then very gently "wet" it down to the throttle blade with a TIG torch., on both sides.

    That will minimize/prevent distortion.
     
  18. Corn Fed
    Joined: May 16, 2002
    Posts: 3,278

    Corn Fed
    Member

    Unless you find someone here that is willing to do it for the fun of it, I cant imagine it being economical to pay to have new ones made. You'd probably be better off just junking the carb and buying a whole new one. Sure, they are in the $400 range but how many hours and $$$$ do you think someone would have wrapped up in the whole thing? Design, material procurement, machine set up, machining, inspection, shipping to you.
     
    loudbang, XXL__, clem and 2 others like this.
  19. Silver solder will solve your problem. Just solder them up and call it good.

    Actually soft solder would work too. Silver solder would just be better.
     
  20. AccurateMike
    Joined: Sep 14, 2020
    Posts: 631

    AccurateMike
    Member

    About making them, what @Jethro said exactly. The ones I used to do were 7 degrees. If you set up to do one, may as well put a stack of blanks on and do a bunch. If you need quantity, talk to the people that make throttle bodies for injection. I used to pay ~$7 each to beat having to make them (I probably was buying 25-50 at a time).
     
    19Eddy30 likes this.
  21. wheeltramp brian
    Joined: Jun 11, 2010
    Posts: 2,560

    wheeltramp brian
    Member

    Thanks for all the responses everybody. I've got a set of primaries handled just thinking about secondaries if I can't find any I may have to just plug them. It's lame that the tech at Edelbrock I talked to said they have a box of about a thousand of them sitting there but won't sell them to me because it's a liability but they will sell me holley ones LOL
     
  22. RmK57
    Joined: Dec 31, 2008
    Posts: 2,659

    RmK57
    Member

    I use jb weld on a carb to plug the butterfly holes. Lasted for years. Recently I removed the carb for a different project and thought I could just pop out the expoxy with a small screwdriver. No way it was really stuck, had to use a drill of the same size to remove it.
     
    missysdad1 and Desoto291Hemi like this.
  23. 19Eddy30
    Joined: Mar 27, 2011
    Posts: 2,314

    19Eddy30
    Member
    from VA

    There a few of us that could make them ,
    Lathe ,mill or drill press, from start to finish 1-2 hrs, set up & fixture would be more then half the time .
     
  24. Used to see $35-$50 used Edelbrock carbs on marketplace all the time, not anymore?
     
  25. Don't throttle plates usually have a compound beveled/angled edge and not a square edge like a coin? That's not easy to make from scratch in your typical shop at the side of the house.
    Or am I overthinking it?
     
    jimmy six, deathrowdave and Beanscoot like this.
  26. gimpyshotrods
    Joined: May 20, 2009
    Posts: 23,264

    gimpyshotrods
    ALLIANCE MEMBER

    I wish.
     
  27. missysdad1
    Joined: Dec 9, 2008
    Posts: 3,305

    missysdad1
    Member

    I'd just JB Weld it and go down the road. If you clean everything carefully it will stay bonded forever...but if it falls out it is soft enough that it won't hurt the engine. Good luck.
     
    XXL__, olscrounger, vtx1800 and 2 others like this.
  28. lostone
    Joined: Oct 13, 2013
    Posts: 2,820

    lostone
    Member
    from kansas

    I'm with gimpyshotrods, just plug and a touch with a tig and your done.

    Machine shop maybe, I'd check with any muffler shops, welding or fab shops. Surely someone around you has a tig. Quick 10 minute fix...

    .
     
    gimpyshotrods likes this.
  29. wheeltramp brian
    Joined: Jun 11, 2010
    Posts: 2,560

    wheeltramp brian
    Member

    I've got a TIG welder here at the shop just trying to see if I can get some throttle blades before I patch it up
     
  30. 19Eddy30
    Joined: Mar 27, 2011
    Posts: 2,314

    19Eddy30
    Member
    from VA

    HAMBer pics Jethro
    Yes there in a Angle
    894565D0-E044-48CB-9868-DA6FE03729BC.png
     

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