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231 plug gap?

Discussion in 'Early CJ5 and CJ6 Tech' started by Sledgehammer, Jul 25, 2008.

  1. Jul 25, 2008
    Sledgehammer

    Sledgehammer Sure, I'll try it

    Ellery, Il
    Joined:
    Jun 7, 2006
    Messages:
    341
    Does anyone know what the plug gap should be on a 74-75 231? I don't know what the engine came from originally to check. Thanks
     
    Sledgehammer, Jul 25, 2008
    #1
  2. Jul 25, 2008
    groomer_guy

    groomer_guy Member

    Western...
    Joined:
    May 12, 2007
    Messages:
    233
    I also have a 231OF in my JEEP. I have the same as a 225OF. Runs good and plugs look good. Also have an HEI on it too though. Hope this helps.
     
    groomer_guy, Jul 25, 2008
    #2
  3. Jul 25, 2008
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
    Joined:
    Sep 23, 2002
    Messages:
    12,529
    With HEI I run .040" Spec is probably either that or .045" but I've found .040" is a good balance gap for coil saturation and flame front time.
     
    nickmil, Jul 25, 2008
    #3
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