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Advice wanted

Discussion in 'Early CJ5 and CJ6 Tech' started by SFaulken, Jul 28, 2011.

  1. Jul 28, 2011
    SFaulken

    SFaulken Active Member

    Bellevue, WA
    Joined:
    May 24, 2011
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    1,178
    So I got some measuring and figuring done on the Dauntless out of my CJ5, and it is savable with a .080" Overbore, which by all accounts is well within safe tolerances for a bore on this block.

    So here is where I need some advice from some folks with more experience with Jeeps

    I'm looking at $500-600 dollars for the engine kit, and probably another $500-600 in machine work (just ballparking, after checking some pricing at Summit Racing, Local Machine Shop, Etc.)

    So as a nice round number, I'm looking at $1200 into getting the mighty might dauntless running again.

    In conjuction with the engine rebuild, I have a T18 that will be going back into the jeep at the same time.

    I do currently own a fresh, Running 302 Ford, that I figure is around a 215HP build, and would need Zero Dollars (other than the time and cost of reworking mounting and the cost of a clutch, since I have the T18 to SBF Bellhousing and Flywheel as well)

    So what are the Pros and Cons of stuffing the 302 in there as opposed to rebuilding the Dauntless?

    I have the cash to rebuild the V6, but I've really got other plans for the money, so I'm pretty torn. I'm not fixated on tossing a V8 in the Jeep, but I do have a running engine.

    Hence, I come here asking you fine fellows for some advice.
     
  2. Jul 28, 2011
    lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    Huntingdon PA
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    Sep 20, 2002
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    Looking strictly at the economics of the situation, the fresh rebuild, the 302 reliability, and the easy mate to the T18...
    I'd definitely drop in the 302 and consider the 225 rebuild a future project.
     
  3. Jul 28, 2011
    jasonjp62

    jasonjp62 Member

    Pennsboro WV.
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    799
    drop in the 302 and call it a day!
     
  4. Jul 28, 2011
    bkd

    bkd Moderator Supreme Staff Member 2022 Sponsor

    K-Town Tenn.
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    Running a 5.0 H/O in my cj6 with a T18.......very doable ..............if I were starting over I'd probably go dauntless BUT in your case think the Ford could be a good choice.....one thing to more is the sbf has a power band that favors higher rpm, I'm geared so it's not a issue but something to keep in mind

    Sent from my DROID2 using Tapatalk
     
  5. Jul 28, 2011
    SFaulken

    SFaulken Active Member

    Bellevue, WA
    Joined:
    May 24, 2011
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    Oh, I'm fully aware of how the SBF's run, I've got a pretty hot one in my '41 Ford Pickup, this one has the later small heads and just an RV cam in it, so it's happiest running right around 2000-2500RPM, although that's well under where max HP would be. Right now my CJ has 3.73's in it, but it's going to end up with 4.88's this winter most likely....
     
  6. Jul 28, 2011
    bkd

    bkd Moderator Supreme Staff Member 2022 Sponsor

    K-Town Tenn.
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    Then you should be good to go............my build thread has lots of pics/ info on the 289 then the 5.0 efi conversion.....if it helps

    Sent from my DROID2 using Tapatalk
     
  7. Jul 28, 2011
    cj5lover

    cj5lover Member

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    May 23, 2011
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    just my opinion, but i like to see things original. if moneys tight, i vote for selling the v-8 and put the v-6 back in the jeep.
     
  8. Jul 28, 2011
    SFaulken

    SFaulken Active Member

    Bellevue, WA
    Joined:
    May 24, 2011
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    1,178
    That's crazy talk.

    Sell an engine? I might need it someday.
     
  9. Jul 28, 2011
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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    Jul 30, 2003
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    8,524
    Patrick recently purchased an assembled V6 short block.
    why mess with yours ?
    and stay with the 225 is my vote.
     
  10. Jul 28, 2011
    Corveeper

    Corveeper Member

    Chanute, Kansas
    Joined:
    Jul 29, 2005
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    817
    A 327 is much the same way, big bore and short stroke means a top heavy power band. But with 4.27 gears and an SM420 transmission I have no problems at all getting it rolling as fast as I have nerve for.
     
  11. Jul 28, 2011
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    I'd say go with the 225 whether you rebuild yours or purchase a good used or a long block. The 302 is doable but no conversion is cheap and the 225 fits very nice in the engine bay. It keeps the balance of the cj nice and has plenty of power.
     
  12. Jul 28, 2011
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    Well, long block, but yeah. After core return it was right at $1600, with a 7 year 100K mile warranty . All new pistons, valves, springs, etc., etc.
     
  13. Jul 28, 2011
    givemethewillys

    givemethewillys Been here since sparky ran it. 2022 Sponsor

    New Kent, VA
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    Patrick, did you find this deal online or local?
     
  14. Jul 28, 2011
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    Well, I found the rebuilder online. They're in Washington state.
     
  15. Jul 28, 2011
    givemethewillys

    givemethewillys Been here since sparky ran it. 2022 Sponsor

    New Kent, VA
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    hmmm, for me the shipping would probably kill the deal. But, on the original question I vote dauntless. I haven't had the pleasure of driving one yet but it seems like the perfect combination of power, weight, and coolness :)
     
  16. Jul 28, 2011
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    Shipping is $175 anywhere in the lower 48

    Now back to your regularly scheduled thread
     
  17. Jul 28, 2011
    otto5

    otto5 New Member

    Beavercreek, OR
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    If it was me, I wouldn't waste any cash on the 225 and would look for an even-fire 231. I remember swapping a 225 into a Vega HB back in my high school days and everyone who rode in the car commented on its vibration, resonance, etc. Plus a lot of money was spent and not a lot of power was made. In my opinion the V6 makes a fine jeep engine, but a newer V6 makes an excellent jeep engine.
     
  18. Jul 28, 2011
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
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    I like the V6 fit and power in the jeeps. But then I am only over 300 in HP and torque, so I know how 'not a lot of power' can be made from the V6s.

    Once we started putting the V6s in the rigs in the 70s, we never looked back on the small V8s we used to use.
     
  19. Jul 28, 2011
    wheelie

    wheelie beeg dummy 2024 Sponsor 2023 Sponsor

    York, PA
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    302. But, if you're gonna put big tires on it and don't have a light foot, you may end up tearing up the rest of the drivetrain.
     
  20. Jul 28, 2011
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    Just curious ... How much time have you spent behind the wheel of a properly running 225 powered Jeep?
     
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