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Exhaust Manifold Question

Discussion in 'Early CJ5 and CJ6 Tech' started by mickeykelley, Apr 17, 2017.

  1. Apr 17, 2017
    mickeykelley

    mickeykelley Well-Known Member

    Republic of Texas
    Joined:
    Oct 10, 2015
    Messages:
    1,909
    I was looking at a replacement exhaust manifold for my F134 and found one on eBay. However the picture on his shows 4 plugs that actually opens to the inside of the runners. What are these for? My 58 CJ5 does not have them. Otherwise they look the same.

    [​IMG]
     
    mickeykelley, Apr 17, 2017
    #1
  2. Apr 17, 2017
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Hills of NH
    Joined:
    Aug 3, 2003
    Messages:
    9,832
    Prolaby air-injection ports for smog control. Unheard of in 1958.
     
    PeteL, Apr 17, 2017
    #2
  3. Apr 17, 2017
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    12,378
    What Pete said. My '69 had that.
     
    Glenn, Apr 17, 2017
    #3
  4. Apr 17, 2017
    Keys5a

    Keys5a Sponsor

    Florida Keys
    Joined:
    Jan 23, 2014
    Messages:
    4,192
    The last couple years of the F134 had these, maybe starting in '68?, through '71. This should still work, but obviously isn't original for your Willys with these ports.
    -Donny
     
    Keys5a, Apr 17, 2017
    #4
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