Edelbrock 1406 marking question

Engine, Transmission & Driveline

  1. live4theking

    live4theking Old Man with a Hat

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    I've been considering swapping to an Edelbrock 1406 if I'm unable to get a hesitation issue straightened out with the original Holley. Some here have said that the new 1406's run a little bit lean. My questions are what constitutes "newer" and what does this marking mean? To the right of the 1406 designation there appears a number. Is it some type of date code maybe? Just curious if one of you guys know, maybe @Dana. The reason for the curiosity is considering buying an older one and having it rebuilt.


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  2. Dana

    Dana Woodruff Carburetor Specialties FCBO Vendor

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    Your on the right track. Just a date code. I have not experienced the 1406 running lean in stock form. Carburetor manufacturers have to consider their off the shelf unit might be running in Florida @ sea level, and they can’t have a new customer melting pistons. I think they would rather have the guy in Colorado Springs fouling plugs. Have you gone through your ignition system already? Where is your initial timing?
     
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  3. live4theking

    live4theking Old Man with a Hat

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    I'll be digging into the timing when the weather warms up. Without a heated garage in PA I don't get much done during the winter.
     
  4. cbarge

    cbarge World Famous Barge in a Budget FCBO Gold Member

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    John,I cannot remember if you are running points? or Pertronix? or Moparr ECU?
    The Eddy carb will be fine.
    Just have to fine tune it to your motor.
    Maybe metering rod swap and/or adjust the accelerator pump rod.
    I do remember stuff like that when I had my 68 NYer with the 350HP 440..
    I never did like the Holley on mine either--even after getting rebuilt and tuned it too had a flat spot that wont go away.
    Installed a modified Carter 750cfm Marine carb and woke the bitch up.
     
  5. saylor

    saylor Senior Member

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    the electric choke eddys ARE different whatever you heard is correct. i asked eddy tech myself. ill be sure to add the difference details to the eddy carb hacks page im making. its got smaller passages, and the choke works off a heat opening thingy that's capped closed on the manual versions, etc. there are differences. basically the electric models are set leaner. if you want that same size cfm but richer you want the 1405.

    im in the same problem right now myself - I got a 1411. I bought the metering kit for the other style carb (it has a bigger assortment of jets/rods - maybe kit #s 1479 and 1480?? I forget) and changed the rods and maybe springs, to something not stock. its got to be in one of my posts somewhere here on this forum. eddy tech told me don't do it because now im not really matched to any of their jetting charts, so I did it. and I like it.

    down here in TX I don't even need the choke, the manual was fine and I never used it. I got the carb from sandy claus so I went all out and got electric choke..
    ill trade anyone straight up a 1409 for a 1411 - whatevers the manual choke 750 model for this electric model.

    try not to die -

    - saylor
     
    Last edited: Feb 14, 2020
  6. Turboomni

    Turboomni Senior Member

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  7. Turboomni

    Turboomni Senior Member

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    Mine runs good on a stock 440. I did go a bit richer on the metering rods. I have a date code also if that is what it is. Very easy to rebuild too and I run points. This thing is old I believe.


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    Last edited: Feb 14, 2020
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  8. furious70

    furious70 Active Member

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    The elec choke models no matter the cfm are calibrated leaner than manual choke. By the strip kit and you can change that. OOtB they are lean and will castrate any engine - that's been my experience.
     
  9. Turboomni

    Turboomni Senior Member

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    Perhaps as I do not know but the calibration kit will remedy that if that is the case.
     
  10. furious70

    furious70 Active Member

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    yup. Carter called them strip kits (and the carter comp series had the same calibration issues)
     
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  11. 70bigblockdodge

    70bigblockdodge Old Man with a Hat FCBO Gold Member

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    Most carburetor problems are ignition related.
    That being said I have had more than one Holley have a hesitation because of the ball check valve on the accelerator pump inlet (under the bar) should have a lessthan clearance, it is hard to measure (normal feeler guage is too wide). Ones I have had problems with the clearance was enormous. Just a thought of something to check.
    Newer Holley carbs have a rubber check valve that works much better, but will fail due to drying out repeatedly.
     
  12. TxDon

    TxDon Active Member

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    Not sure what engine you have but I put a 1406 electric choke on my 383 after trying unsuccessfully to rebuild the stock AFB. It ran great right out of the box, just a little adjustment needed to idle speed and mixture screws. I would recommend a new one, good deals all the time on Ebay.

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  13. live4theking

    live4theking Old Man with a Hat

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    So, how do you decipher the date stamp?
     
  14. furious70

    furious70 Active Member

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    I don't believe the calibration is age related, they are all lean. Easy to find out, pop the top to see what's in there
     
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  15. Turboomni

    Turboomni Senior Member

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  16. crazyboutwagons

    crazyboutwagons Active Member FCBO Gold Member

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    date code looks like first digit is the last of the year. the next three are day of the year (julian calender date)
     
  17. saylor

    saylor Senior Member

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    the electric choke ones the venturii are smaller, etc. I asked the eddy tech myself im telling ya.

    I did same as turbo ^^ I put a richer metering rod and pink spring 750cfm electric on my 440.

    there are different jet kits - one has less choices inside - compare before you buy!

    try not to die -

    - saylor