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Technical Loadomatic Dizzy with Edelbrock Carb

Discussion in 'The Hokey Ass Message Board' started by Flathead 51, Sep 15, 2023.

  1. Flathead 51
    Joined: Mar 14, 2007
    Posts: 151

    Flathead 51
    Member
    from St Paul MN

    I have a rebuilt stock yblock in a 57 country sedan wagon. I'll be putting in a ford 4 barrel intake (ECZ-9425-B) along with a 1403 Edelbrock carb with electric choke. I purchased a CRT Pro Series electronic distributor but quickly found out that the body of the dizzy is too wide and is up against the firewall preventing me from putting the cap on.

    I've decided to go with a PerTronix setup but I'm wondering if I can use the 56 loadomatic dizzy or is that not compatible with the 1403 Edelbrock because the dizzy is vacuum only? Or should I rebuild my 57 dizzy with the PerTronix so I have both vacuum and mechanical?
     
    chryslerfan55 likes this.
  2. BJR
    Joined: Mar 11, 2005
    Posts: 11,192

    BJR
    Member

    Use the 57 Dizzy or get a Mallory Unilite. It is not any bigger around than a stock dizzy.
     
    chryslerfan55 likes this.
  3. chicken
    Joined: Aug 15, 2004
    Posts: 673

    chicken
    Member
    from Kansas

    '57 unit for sure.
     
  4. Petejoe
    Joined: Nov 27, 2002
    Posts: 12,576

    Petejoe
    Member
    from Zoar, Ohio

    Y-block guys!
    Does the 57 loadamatic require a Venturi vacuum??? That’s out of my experience.
     
    gimpyshotrods likes this.
  5. jimmy six
    Joined: Mar 21, 2006
    Posts: 16,943

    jimmy six
    ALLIANCE MEMBER

    There were no 57 loadmatic’s for a standard V8.
    The “E” code dual quad 312 still used Holley 4000’s and I don’t know about the ignition it used.
     
    Petejoe likes this.
  6. 427 sleeper
    Joined: Mar 8, 2017
    Posts: 3,355

    427 sleeper
    ALLIANCE MEMBER

    Why do people insist on using Pertronix junk??? :confused:
     
  7. Lloyd's paint & glass
    Joined: Nov 16, 2019
    Posts: 10,795

    Lloyd's paint & glass
    ALLIANCE MEMBER

    Hey!! Watch your mouth :p
     
  8. 427 sleeper
    Joined: Mar 8, 2017
    Posts: 3,355

    427 sleeper
    ALLIANCE MEMBER

  9. jimmy six
    Joined: Mar 21, 2006
    Posts: 16,943

    jimmy six
    ALLIANCE MEMBER

    Perfect for 9 years! Pertronix II. Ballast used, Their coil,. Haven’t changed a spark plug as they look great. Your experience may differ!
     
    Truckdoctor Andy likes this.
  10. 427 sleeper
    Joined: Mar 8, 2017
    Posts: 3,355

    427 sleeper
    ALLIANCE MEMBER

    I must be one of the special one's that only old technology works for. Never had luck with them.
     
  11. jimmy six
    Joined: Mar 21, 2006
    Posts: 16,943

    jimmy six
    ALLIANCE MEMBER

    It would be nice if some one would respond to the question of a Loadmatic with a later Edelbrock carb.
    I know there is a modification to a Holley 4000 to run a later ignition.
    I too am guilty of responding off topic in the a Pertronix reference.
     
  12. chicken
    Joined: Aug 15, 2004
    Posts: 673

    chicken
    Member
    from Kansas


    No way will a Loadomatic distributor work properly with an Edelbrock carb. The carb will supply 4 times as much vacuum as the distributor is calibrated for at part throttle and will be at full advance as soon as the throttle is touched, then will lose all advance when the throttle is wide open.
     
    jimmy six, gimpyshotrods and jaracer like this.
  13. 427 sleeper
    Joined: Mar 8, 2017
    Posts: 3,355

    427 sleeper
    ALLIANCE MEMBER

    Put a Vertex in it... :eek::rolleyes::p
     
    VANDENPLAS likes this.
  14. pprather
    Joined: Jan 10, 2007
    Posts: 8,842

    pprather
    Member

    I thought 1956 was the last year for the Loadomatic distributor. No?
     
  15. jaracer
    Joined: Oct 4, 2008
    Posts: 3,017

    jaracer
    ALLIANCE MEMBER

    Load-O-Matic distributors require a venturi vacuum signal to get proper advance. The Edelbrock carb has no provision for a venturi vacuum signal. Therefore, it just won't work. You need the 57 or newer distributor that has centrifugal advance.
     
  16. gimpyshotrods
    Joined: May 20, 2009
    Posts: 24,481

    gimpyshotrods
    ALLIANCE MEMBER

    Nope, overall. That garbage made it into the late 1960's!

    It may have been the last year on that engine.

    The proper way to handle a Load-O-Matic is to toss it in the dumpster, after sawing it in half.
     
  17. Flathead 51
    Joined: Mar 14, 2007
    Posts: 151

    Flathead 51
    Member
    from St Paul MN

    Thanks everyone for the reply....very helpful! I will have my 57 dizzy rebuilt!
     
  18. HEATHEN
    Joined: Nov 22, 2005
    Posts: 9,019

    HEATHEN
    Member
    from SIDNEY, NY

    A former girlfriend's '67 200 powered Mustang had one; I guess that Ford just didn't want to admit what a stupid idea it was.
     
    pprather likes this.

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