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231 V6 Pcv Locations

Discussion in 'Early CJ5 and CJ6 Tech' started by Flat47, Jul 14, 2018.

  1. Flat47

    Flat47 Member

    I'm putting a 231 intake on my 225 and am at the point of plumbing things. The 225 just had a PCV valve on the passenger's side valve cover. The 231 intake has a PCV valve aft of the carb.

    What are people thoughts on blocking off one? Which one?

    Thanks!
     
    Flat47, Jul 14, 2018
    #1
  2. colojeepguy

    colojeepguy Colorado Springs

    Shouldn't really matter, as long as you have the PCV valve hooked up to manifold vacuum and a breather on one of the valve covers.
     
    colojeepguy, Jul 14, 2018
    #2
  3. jzeber

    jzeber Well-Known Member 2022 Sponsor

    My 231 has it in the valve cover.
     
    jzeber, Jul 15, 2018
    #3
  4. Warloch

    Warloch Did you say Flattie??? Staff Member

    I hope your following the prescribed work on the heads in this swap. There can be some passages that do not line up with a 225 block and 231 heads. Pat Ganahl's V6 Performance book can lay this all out for you if your not already there.
     
    Warloch, Jul 16, 2018
    #4