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225 swap to mid 80's 231

Discussion in 'Early CJ5 and CJ6 Tech' started by billybbean, Jun 19, 2011.

  1. Jun 19, 2011
    billybbean

    billybbean Member

    Kemmerer, Wyoming
    Joined:
    Apr 29, 2010
    Messages:
    55
    I have the opportunity to pick up a rebuilt 231. The guy says it's an 82-87 rear wheel drive engine. Would this 231 go in place of my 225 without much headach?
     
  2. Jun 19, 2011
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
    Joined:
    Mar 4, 2003
    Messages:
    4,569
    If it is a rear wheel motor, and comes with a fly wheel, just pop it in. If you have to use your fly wheel, you may want to think about getting a neutral balance on it. Do a search on info for the flywheel balance.
     
  3. Jun 19, 2011
    billybbean

    billybbean Member

    Kemmerer, Wyoming
    Joined:
    Apr 29, 2010
    Messages:
    55
    Thanks Warloch. I've read the info on here about swaping and such here. With the engine being an 80's model I wasn't sure if there had been some changes. I'll look into the flywheel. Thanks!
     
  4. Jun 21, 2011
    Bob Greenslade

    Bob Greenslade Member

    Roseville CA
    Joined:
    Sep 15, 2008
    Messages:
    232
    If you wheel the Jeep you will want to keep the 225 flywheel. Get it balanced to the 231.
     
  5. Jun 22, 2011
    billybbean

    billybbean Member

    Kemmerer, Wyoming
    Joined:
    Apr 29, 2010
    Messages:
    55
    I am going to stick with the 225. I found another 225 close to me. Going to go pick it up this weekend. Should be a fun project. Hopefuly I'll have it redy to go in this fall, in time for hunting.
     

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