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225 V6 Compression Ratio

Discussion in 'Early CJ5 and CJ6 Tech' started by Harold W., Oct 9, 2008.

  1. Oct 9, 2008
    Harold W.

    Harold W. Member

    Middle Georgia
    Joined:
    May 9, 2003
    Messages:
    61
    I have a chance to buy some new pistons for my V6 rebuild and they are 8.4 to 1 CR as compared to the original 9 to 1. What will I be giving up to go with these or will I be better off tracking down some original pistons. Thanks
     
    Harold W., Oct 9, 2008
    #1
  2. Oct 9, 2008
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
    Joined:
    Jul 30, 2003
    Messages:
    8,525
    I don't think you'll lose anything
    I did the same thing when I rebuilt mine back in '85
    not enough difference to notice in my opinion
     
    jpflat2a, Oct 9, 2008
    #2
  3. Oct 10, 2008
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
    Joined:
    Sep 23, 2002
    Messages:
    12,529
    The power loss will be minimal, probably would never notice, and will run better on crappy gas without detonation issues from low octane fuel. My CJ-5 I purposefully left in lower compression pistons for this reason. The thing will run on most any kind of "gasoline" that burns....
     
    nickmil, Oct 10, 2008
    #3
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