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Old 07-01-2013, 10:37 PM   #1
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Exclamation 4 cylinder to 6 cylinder

hey yall i got a 1997 jeep wrangler 4 cylinder. has 140,000 miles and runs just fine so will be a little while before this happens. BUt obviously the 4 is just not strong enough for my DD. I know people say to just go with the 6 that buying a jeep with the 6 is easier but i have my doubts. so what all would i need to be able to upgrade? i know obviously the engine, ax 15 trans, wiring harness...what else? its a 5 speed so i need a manual trans too...so just what i need to do this and possibly a ballpark idea of what itd cost to have someone do it. Thanks guys!

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Old 07-01-2013, 10:59 PM   #2
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Motor mounts, electical, exhaust and a slew of other stuff. By the time you buy and motor and tranny and then pay the 1500-2000 labor fees....it would be cheaper to sell the 4 cyl and buy 6 cyl.

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Old 07-03-2013, 10:35 PM   #3
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Unless you can do it yourself there is No way that I could see where you would save money over selling yours and buying a 6cyl. Even if you did do it yourself I still don't think you'll do it for less. Save yourself a lot of time, money and head aches. Sorry
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Old 07-03-2013, 11:54 PM   #4
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You're getting perfect advice from the above replies. I have done the swap, only because we were "attached" to our Jeep. I would not under any circumstances try it again, even knowing what to expect and how to remedy stupid issues.
Just sell yours now while its running and get what you really want or as close to that as you can afford. Seriously, you'll spend well over $2000 just in parts and components alone. But I will give you one positive note....IF you're hell bent to do this, a 97 is the easiest model year to do. It becomes more complicated each and every year newer.
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Old 07-04-2013, 01:16 AM   #5
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i've never really understood why people say the 4cyl isnt "strong enough" for their daily driver...like...what are you running on your jeep that is so heavy or big that you cant drive it?? I agree the 6 is more powerful, obviously, but the 4 does just fine in town. The automatic, ok...i slightly see this due to the stock gearing and not being able to shift yourself...but a manual? The 5 speed comes with 4.10's which more than turn the stock tires...hell, i'm running 35's on my 2.5 at the moment and get around in town just fine with no issue.

i'm regearing in two-three weeks and i know that'll make a huge difference as well by going with the 4.88's

you're not going to do this swap cheap at all unless you're doing it yourself so like they said above, sell the 4 and buy a 6 if you're going to do this.

Otherwise, just regear and call it a day...it'll be more than adequate for a dd
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Old 07-04-2013, 10:31 AM   #6
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Unless you have a garage, lift, welder, compressor, cutting torch and a full, monster sized rollaway of tools. Plus tons of daily mechanic experience: forget it.

I changed a Comanche from 2 wd to 4 wd with the help of a buddy who was a caterpillar mechanic and it was very difficult. I had the donor truck within 10ft of the garage and lift and it was still a huge pain. Plus very expensive to do it right.
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Old 07-04-2013, 01:42 PM   #7
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okay, from looking at different forums on here and different sites, from what ive read, what if i bought a 97 cherokee as a donor and took everything out of it to go in mine? just a thought.
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Old 07-04-2013, 04:48 PM   #8
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Just don't do it, using Cherokee components will only cause you to lose your mind sooner. Really man, we're telling you straight, just don't do it.
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Old 07-04-2013, 08:38 PM   #9
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Quote:
Originally Posted by logangrin View Post
okay, from looking at different forums on here and different sites, from what ive read, what if i bought a 97 cherokee as a donor and took everything out of it to go in mine? just a thought.
Seriously bro, these guys know what they're talking about here. Regear or learn to live with your 2.5, or buy a 4.0.
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Old 07-04-2013, 10:04 PM   #10
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If you are going to go through all that trouble, you may as well swap in a V8. The difficulty level between the 4.0 swap and V8 swap isn't much different. They will both take about the same amount of time and money.

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4.0l swap , engine 4.0 , engine conversion , swaps

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