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Boring a 225

Discussion in 'Early CJ5 and CJ6 Tech' started by Patrick, Jun 22, 2009.

  1. Jun 22, 2009
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    How far can you safely bore a 225? I have a block that has been bored .040 according to bore measurements. They are pretty round yet, measured at top inline, 90*, and bottom inline, and 90*.
     
    Patrick, Jun 22, 2009
    #1
  2. Jun 22, 2009
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    I can't give you a specific answer as my memory is getting bad on that type of minutiae. I would look and see what pistons and rings are readily available. That is generally a good rule-of-thumb guide and one that works for me.:beer:
     
    nickmil, Jun 22, 2009
    #2
  3. Jun 22, 2009
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    Heh, I was counting on you to answer this Nick;)

    I was thinking .060, but couldn't remember.
     
    Patrick, Jun 22, 2009
    #3
  4. Jun 22, 2009
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    R):beer:I'm thinking .060" also but again, old'timer's is getting to me:(:rofl:
     
    nickmil, Jun 22, 2009
    #4
  5. Jun 22, 2009
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    All right, dang it, now you got me curious. What you got going on?:toetap:
     
    nickmil, Jun 22, 2009
    #5
  6. Jun 22, 2009
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
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    When I bought my kit they had .060" over as an option on the list.
     
    Mcruff, Jun 22, 2009
    #6
  7. Jun 22, 2009
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    Nuthin???:rofl:

    Nah, we just have this motor..A lot of the parts "we" have are community property with my Dad and my Brother and I. When someone needs it, they just use it.
    My Brother is fixin to sell his house and was gonna throw this block away.:shock:
     
    Patrick, Jun 22, 2009
    #7
  8. Jun 22, 2009
    mike starck

    mike starck Member

    salem,oregon
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    im sure you are already aware of the fact that if it would cleanup at .050" over you can use standard bore 231 pistons.there is an issue with compression ratio change on 231's (lower) .sonic mapping costs about a hundred dollers,but you would really know were you stand as far as thin cylinder walls and over heating. just a couple ideas.

    mike s.
     
    mike starck, Jun 22, 2009
    #8
  9. Jun 22, 2009
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    Yes, and I don't want to drop the compression.
     
    Patrick, Jun 22, 2009
    #9
  10. Jun 22, 2009
    fletcher0780

    fletcher0780 Member

    Connecticut
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    but then you could add a blower or turbo R)
     
    fletcher0780, Jun 22, 2009
    #10
  11. Jun 22, 2009
    EricM

    EricM Active Member

    Southern California
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    I'm glad everyone here has taken the high road, and not suggested sending the block to DonX.











    :)
     
    Last edited: Jun 22, 2009
    EricM, Jun 22, 2009
    #11
  12. Jun 22, 2009
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    :?
    Must be an inside joke
     
    Patrick, Jun 22, 2009
    #12
  13. Jun 22, 2009
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    If it were me I'd send the block to Billy or DonX. They could use a good V6 in their Jeeps.
     
    sparky, Jun 22, 2009
    #13
  14. Jun 22, 2009
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    Ah, now I understand. I'll rebuild it first, but I'll have to de-tune the heck out of it so they won't hurt themselves....:rofl::)
     
    Patrick, Jun 22, 2009
    #14
  15. Jun 23, 2009
    blevisay

    blevisay Oh Noooooooooooooooo! Staff Member

    Portland Tn.
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    Here we go again.................

    I'll stoke the F head .005
     
    blevisay, Jun 23, 2009
    #15
  16. Jun 23, 2009
    Vanguard

    Vanguard Take Off! Staff Member

    Vista, CA USA
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    I'm going to the move the hurricane posts to the marine mobile fixment forum.............
     
    Vanguard, Jun 23, 2009
    #16
  17. Jun 23, 2009
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    [​IMG]
     
    Patrick, Jun 23, 2009
    #17
  18. Jun 23, 2009
    blevisay

    blevisay Oh Noooooooooooooooo! Staff Member

    Portland Tn.
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    May as well delete them from the Forum













































    they just dont have as many problems
     
    blevisay, Jun 23, 2009
    #18
  19. Jun 24, 2009
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    Till you try to rev them like a V-6. Then the connecting rods break, bust out the side of the block, break the starter and mounting flanges, etc.....R)
     
    nickmil, Jun 24, 2009
    #19
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