Register now to get rid of these ads!

Carb spacers for early Carter 4 BBL?

Discussion in 'The Hokey Ass Message Board' started by Carnuba, Jul 17, 2012.

  1. Carnuba
    Joined: Mar 19, 2012
    Posts: 430

    Carnuba
    BANNED

    Is there such a thing? I need to put a dual quad setup on a Nomad with power brakes. I don't want to drill the intake, so if I can find 2 spacers (so both carbs remain the same height), the rear can be drilled for a vacuum fitting. Thanks

    [​IMG]
     
  2. carbking
    Joined: Dec 20, 2008
    Posts: 3,959

    carbking
    Member

    Option B:

    Many original equipment units used a vacuum source through a hollow carb stud. I am pretty sure they are available somewhere. If not, they are easy to make (I have made dozens over the years). The stud extends maybe 3/8~1/2 inch above the mounting nut. This portion of the stud has no theads, and is smooth to accept a vacuum hose. If you can't find one, the local FLAPS has steel studs. Obtain one with the correct thread and length for your application, chuck it up in your lathe, and drill a hole lengthwise through the stud.

    Jon.
     
  3. Carnuba
    Joined: Mar 19, 2012
    Posts: 430

    Carnuba
    BANNED

    I've seen those. They're OK for vacuum advance or a vacuum modulator on an automatic trans....but not nearly enough volume for a power brake booster or PCV (I need both of those)
     
  4. Moneymaker
    Joined: Sep 19, 2011
    Posts: 320

    Moneymaker
    Member

  5. carbking
    Joined: Dec 20, 2008
    Posts: 3,959

    carbking
    Member

    To use a spacer on the dual quads for the small block, you should machine a spacer to duplicate the flange gasket profile of the gasket you show. The figure 8 gasket was done because of idle and off-idle issues with these carbs on the 283. If you have a 350, the open spacer might be OK.

    Jon.
     
  6. nmpontiac
    Joined: Apr 24, 2007
    Posts: 1,235

    nmpontiac
    Member
    from Taos, NM

    You might try making the spacers out of 1/2" delrin and get a little insulating effect, too.Try your closest plastics supplier.
     

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.