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Thread: Thinking about a new power plant

  1. #1
    Junior Member tx_medic's Avatar
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    Default Thinking about a new power plant

    My under-powered 4 cylinder just isn't going to cut it for too much longer and I'm thinking it's time for a 6 or 8. Thought I'd ask around and get some opinions on what to start looking for. Right now I'm leaning to the straight six, but I'm not opposed to alternate suggestions.

    Thanks!
    -Luke
    -Doc

  2. #2
    Senior Member cowboy63b's Avatar
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    i say 8, make it easy on yourself and have hotwire auto modify a harness from a grand cherokee and drop a 5.2 in that booger.
    Quote Originally Posted by Irish_Assassin View Post
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  3. #3
    Devil Doc Navydoc8778's Avatar
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    I would second the cowboy! You could do the (fairly) standard SBC swap, but the 5.2 in mine is a tourqey little bastard, gets great mileage, and is fun as hell. Hit a j/y and pull one, slap that pig in!
    Last edited by Navydoc8778; 09-20-2010 at 17:14.

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    Administrator korisu56's Avatar
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    hell yeah. drop that 8 like the boys above mentioned

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    Non-MVC Supporter Military Jeeper's Avatar
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    If you're gonna do it, do it once and get the power you need on the first try. I wish I would have swapped out my drivetrain for a 350 vice my 304. My .02 cents.
    NOTE: I DO NOT ENDORSE MOUNTAIN VALLEY CUSTOMS (MVC) FOR ANY 4x4 MODIFICATIONS - PM ME IF YOU HAVE QUESTIONS WHY!

    (To those who wonder, I am NOT the club founder, this has been my screen name for over 10 yrs on all other forums and ironically this site is called "Military Jeepers"......contact miljeep for forum related questions)

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    Junior Member tx_medic's Avatar
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    When I do this, I'll have to switch the transmission and transfer case and new drive shafts also? Or will I be able to keep my transfer case and current driveshafts a the lengths they're at now? Do I need to find everything as a complete drive line to swap out? I'm planning on keeping my dana 30 in the front for now (mostly because I just dropped $600 into it in the form of chromoly shafts and a locker), should I get ride of the 35 in back at the same time?
    -Doc

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    Zombie Slayer... JoeySnow70's Avatar
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    With all the fab involved and all the work, do your self a favor and go V8. I6 might look like a simple swap but is not, and there is the price. When you compare the price a I6 with tranny V 5.2 and tranny there is not much difference. Then there is the power issue, you go I6 and soon after you will realize that you coud have gone V8 and got tons of more power....
    Dunno just my .02

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    Zombie Slayer... JoeySnow70's Avatar
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    Quote Originally Posted by tx_medic View Post
    When I do this, I'll have to switch the transmission and transfer case and new drive shafts also? Or will I be able to keep my transfer case and current driveshafts a the lengths they're at now? Do I need to find everything as a complete drive line to swap out? I'm planning on keeping my dana 30 in the front for now (mostly because I just dropped $600 into it in the form of chromoly shafts and a locker), should I get ride of the 35 in back at the same time?
    You will need
    Engine with wirng accesories and computer
    Tranny
    Imput shaft on trans case
    If you can get the whole drop out is sometimes cheaper than trying to piece out stuff toguether....
    engine frame mounts(the 4banger are not strong enough for I6 or V8)
    your d30 with cromo should hold to V8, depending on tire size...

  9. #9
    Senior Member cowboy63b's Avatar
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    it loks like you have a YJ, check out jackhammer's build thread.


    http://www.militaryjeepers.com/commu...5-2.5l-lt-5.2l


    and if you do decide to do this then i can give you a few pointers about grands.
    Quote Originally Posted by Irish_Assassin View Post
    I'd jump all ovet that waggy!!!
    If I offend anyone tonight, I apologize. That's not my intention. I'm not going to guess what your personal line of decency is. I cross my own from time to time. It's how I know I still have one. not that i actually cared in the first place.


    "Cougar or not, I'd bang both those broads like a f***ing retard with a tambourine in each hand"

  10. #10
    Junior Member tx_medic's Avatar
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    I'm running 33x12.5 and don't plan to go much larger anytime soon.

    Wow, that's quite a bit of information... Looks like I've got quite a bit of work ahead of me.

    Thanks!
    -Doc

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