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What year did the 231 exhaust ports change?

Discussion in 'Early CJ5 and CJ6 Tech' started by willys59cj5, Jan 17, 2006.

  1. willys59cj5

    willys59cj5 Sponsor

    I have a drivers side 231 manifold, but the ports are different. It is short and fat...more square like. My 225 manifolds are tall and thin:)
     
    willys59cj5, Jan 17, 2006
    #1
  2. $ sink

    $ sink Gazillians of posts

    $ sink, Jan 17, 2006
    #2
  3. nickmil

    nickmil In mothballs.

    '78 is when the port change occurred. Nickmil.
     
    nickmil, Jan 17, 2006
    #3
  4. willys59cj5

    willys59cj5 Sponsor

    Thanks guys:)
     
    willys59cj5, Jan 17, 2006
    #4