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Old 02-02-2009, 07:09 PM   #1
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5.7 HEMI Conversion

okay so i definately have my heart set on putting a hemi in my tj. i'm seeing a lot of places that will do the conversion for you, but i would like to do the wrenching myself.
does anyone know of site with a step by step or a parts list? tax time is here and i should have enough to cover it.

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Old 02-02-2009, 07:15 PM   #2
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You can buy all the install parts from AEV and get the engine and trans from a breaker yard. Should be much cheaper but it is still going to be expensive.

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Old 02-02-2009, 07:16 PM   #3
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i wish i got 10 grand back
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Old 02-02-2009, 07:30 PM   #4
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damm ur jeeps gonna fly man u dont even have larger tires and everything .. thats a sweet build
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Old 02-02-2009, 08:02 PM   #5
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cool idea!
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Old 02-02-2009, 08:26 PM   #6
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i wish i got 10 grand back
im getting over 11g's. no hemi for me though
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Old 02-02-2009, 08:43 PM   #7
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A guy in portage (friend of friend)
As a new 0 miles crate 5.7 hemi still on pallet
for 2500 firm
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Old 02-02-2009, 08:51 PM   #8
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I've done about 2 months worth of research on this. Theres a lot of small things to take into consideration. First, you need to talk to the guy at HotwireAuto - Fuel Injected Wiring Harnesses This guy has done the conversion. He will give you all the parts you need, including a fuse block mapped to your jeep's new motor with the VIN. Now if you do the Hemi 5.7, the car version is cheaper but the truck 5.7 will line up better in our TJ's. You will need new motor mounts from Teraflex to weld on too, the stock motor mounts wount fit with the v8. The hemi motor will be easier to make emissions compliant, if that is something that you are interested in. Now the problem with the dodge motor is the transmission. You most likely will need an atlas trans for the power. Now if you are doing a chevy conversion with a 350 block, advance adapters is the place to go. but they will not make you emissions compliant.
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Old 02-02-2009, 10:08 PM   #9
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this is definitely a swap that i want to do someday. i've done a fair amount of research into it as well, but because of the cost and amount of work involved it will probably be last on the list. i had originally wanted to swap in a LS1, but the thought of actually having a hemi under the hood while still being able to pass emissions is much more enticing.

they did a buildup of a 5.7 hemi on xtreme 4x4 on powerblock tv last year it think. i had that on dvr for a while and watched a few times to get the names of some of the companies used. i think hotwire auto was one of the places mentioned to get the computer reflashed with the right vin.

i also found this web page on 4wheeler.com about a buildup of their project jeep. starting at part 11 they talk about the hemi swap:

4wheeler.com teal-j project

there's also this link from jeepforum.com where one of the users on there had it done and he seems pretty willing to discuss it:

jeepforum.com

i'm gonna subscribe to this thread to see where it goes. i'm in south/eastern mass, so i'll be interested to see how you go about doing it... whether you do it yourself or have it done. if you do it then i'll definitely want to see it.
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Old 02-02-2009, 10:13 PM   #10
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i own both a wrangler and a hemi =D its awesome..

one day i plan on putting a 6.1L srt hemi in my charger.. than i will be putting my older 5.7L hemi in my wrangler.. there was a guy in my jeep club (he is friends with the guys from aev.. last time he came in town for chryslers cruise in he brought the guys from truck master design with him and with 3 supercharged tjs) who had a unlimited that was stretched on coil overs with a hemi.. hes sorta talking me into it more and more every time.. too bad he doesnt have that thing anymore.. but nothing beats a 4dr jk on 36s and a brute tj on 36s as well

but than again.. i still owe like 12g on my car.. so about 5 more years and i might be able to do the swaps =D

sorry no pics of the hemi under the hood but heres the guys old unlimited




oh yah heres pics of my hemi
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Old 02-02-2009, 10:20 PM   #11
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I'm definatley doin the swap in about a month or so. the other problem i have run into is the issue of exhaust system. currently, you have to fabricate an entire system when you drop in the V8 hemi, including headers. however, the guy at hotwireauto has told me that within a month he is heading to moab and hopes to have his header issue resolved and will be selling them. my jeep is my daily driver so i have to stay emissions compliant, especially since i live in NYC suburbs. the hitwireauto guy says with his setup, you will pass california emissions. i cant even begin to tell how many websites ive looked at, called, emailed....AEV no longer offers a kit for the TJ, only for the JK now. I saw the project Teal-J they did, but it wasnt very helpful in the long run for the average guy who like us who can't fabricate all the parts or get them for free. ANYWAY if anyone wants, send me a message on here or email me about this. I'm in the final stages of the research prep (oh wow that sounded kinda intelligent) for this, and trust me, when i do it everything in my jeep should still work and the stupid check engine light should stay off. most likely i'll be a guinea pig for this, but its for the greater good of the TJ!
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Old 02-02-2009, 10:24 PM   #12
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Theres other crap too, like a new radiator and when you go to the V8 you need to get more pressure in your gas line, around 50-60psi. just another thing we dont think about when doin a swap but somethin small that may be overlooked
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Old 02-03-2009, 12:59 AM   #13
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It is really not that hard of a swap. The little things like the radiator and the new fuel pump is nothing. Worry about the big things first then to drop the fuel tank takes like 10 mins! The thing you need to get is the wiring harness for the motor your dropping in. If you felt like it you could wire it up from scratch. It would make it nice and clean but a PITA to figure out.
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Old 02-03-2009, 09:24 AM   #14
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the guy from hotwire auto solves the wiring harness problem, he tkes your stock one with all the quick connects still attached and remaps it to your new motor.
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Old 02-04-2009, 08:33 AM   #15
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well this is what i figure. i can get a wrecked dodge at a junkyard complete with less than 40,000 miles on for around $4000. my tires will be here next month. i went to all my local dealers and couldn't find a set of km2's so i ordered a set of mt/r's for 178.99 a tire out the door. i still need my 15x10 soft 8's but like i said that will be around this time next month. i've been on the phone with aev several times in the last couple of weeks. i figure it's going to cost about $3400 for all the additional parts i need. and then a week in the garage and a couple of cases of booze and i should be good to go. my wife isn't to happy about this decision but i just have to have it. there is no talking me out of it. i did find an srt-8 charger motor and tranny for $4500. i think that would be a little over kill. i just want more power. the 4.0 is just to weak for me.
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Old 02-04-2009, 08:37 AM   #16
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i do have access to a machine shop and their hands that work there. 3 of my friends work at the same shop. i want to do a stretch at the same time as well and the rear suspensions is gonna cost me around $1800. i'm not even worried about inspection i'm sure someone out there will pass it.
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Old 02-04-2009, 08:37 AM   #17
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the Hemi 5.7 truck motor will fit better than the srt-8 motor. you may need to upgrade to an atlas trans to accomadate the new power. but if you can get the whole wrecked truck for 4000$ your savin lots of money!!!
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Old 02-04-2012, 09:05 PM   #18
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For those looking for cheap junk cars to perform these swaps with look up easyexport.us they are like ebay for wrecked vehicles. I have been wanting to do this swap and I have been doing my research and i came across this website. I saw a Dodge 1500 5.7L go for $200 all you have to do is ship it. Just wanted to give out some helpful advice
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Old 02-05-2012, 01:05 PM   #19
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I've got a Hemi and a Wrangler:




The Hemi gas engine makes the 2500 4x4 quad cab scoot pretty well. I think it would be nearly uncontrollable in a Wrangler. Jeeps get squirrelly enough within the speed ranges available to the factory engines.

Plus then you have to slow it down once you get going fast. My truck in the background will go well in excess of 100mph. At those speeds it's a kinetic weapon, but even still the longer wheelbase and huge brakes gives the operator a bit more advantage over a Wrangler, with it's challenged handling, and puny (by comparison) frame & brakes, etc.

The above is assuming a perfect factory quality install. Even factory designs are prone to reliability issues.

For the cost of the Wrangler upgrade, the OP could have a second vehicle with it's own proper Hemi. Hell, I can use my truck to tow my Wrangler if I want. If either one breaks, I can use the other to make parts runs. Both are 4x4, with solid axles... and each has it's primary purpose. I use the Wrangler to commute, and the Ram tows horses and hauls hay.

State Farm gives my a multi-car discount. $50/mo for the Ram and $75 for the Wrangler. I have 10+ years accident free on the Ram policy.



The Jeep, in my mind, has always carried the connotation of being the preeminent "little engine that could" vehicle.
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Old 02-05-2012, 02:56 PM   #20
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http://m.youtube.com/index?desktop_u...?v=jhQYB623Bto

Who needs a hemi when you can build your 4.0! This jeep is a friend of mine...it is awesome! The engine has so much power it will pull he front wheels off the ground...but it also has broke the axle, and transmission. He has built them up now so its good to go!

http://m.youtube.com/index?desktop_u...?v=ZXDufSy_XhU

This one is installed on the dyno. Also yes he had the block done in camo!
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Old 02-05-2012, 04:03 PM   #21
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Since Chrysler's "come back" is all riding on their big motor sales, they should add the V8 as a factory option. There is so much pent up demand. I bet it would be a $1000 option at the most.
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Old 02-05-2012, 04:29 PM   #22
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Since Chrysler's "come back" is all riding on their big motor sales, they should add the V8 as a factory option. There is so much pent up demand. I bet it would be a $1000 option at the most.
I agree. I always wanted to see a factory installed 5.7 in the JK.
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Old 02-05-2012, 06:57 PM   #23
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I intentionally sought out a 2.4L in my Wrangler. It's a 4x4 and not a Corvette. I'll take the 22-23mpg and gladly sacrifice some power. A Hemi in my Jeep wouldn't enable it to tow like a 2500. Consider that the entire drivetrain would need to be upgraded to 1/2-ton at minimum... a V8 is a totally impractical option, unless it went into a Rubicon which is close to half ton already. Now you have a Wrangler that will go anywhere, except past a gas station. And gas will be $5/gal by the time the V8 Wrangler units hit the showroom.

I can see why the company execs don't produce a V8 Wrangler.

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