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Hemi question

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Old Feb 9, 2012 | 09:15 AM
  #1  
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Default Hemi question

This engine is for sale in Europe and because the Ripp upgrade is not compatible with LPG I'm leaning towards a Hemi swap.

I'm totally new to the swap story, but I found out I need to buy a AEV kit to get the swap done.

Can anyone tell me what Jeep is in the picture (only pic available)and if the AEV kit is always needed? For example this; is a donor car with the computer and everything in it and it's a Jeep. Is it wrong to assume I only need a few new things like motor mounts etc.? I also need to know if the transmission in compatible?

Thanks,

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Old Feb 10, 2012 | 12:05 AM
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Doen't anybody know what car this is, or has the anwer to my questions?

I know it's common in the US to do a Hemi swap and therefore maybe I'm asking stupid questions, but over here I don't think there are much JK's with a hemi. So limited to no info over here.
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Old Feb 10, 2012 | 01:55 AM
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It is a jeep Grand Cherokee. AEV web site has the info about components you need. I think Jeep Speed Shop has kit for truck hemi conversion too.
Search it, lots of info on this forum.
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Old Feb 10, 2012 | 04:21 AM
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If you go to the AEV site under their hemi kits, and click on the installation tab, they have pretty detailed instructions on what it takes to install it. This will give you a good idea on what is involved.

h t tp://www.aev-conversions.com/shop/shop-by-category/powertrain/jk-hemi-kit.html

Burnsville Offroad also makes a good kit.

You can do it without buying a kit, the fella in the thread below recently did, it just takes innovation and maybe a little more time. Think he says he has only $6500 into the swap;

https://www.jk-forum.com/forums/show...6-My-Hemi-swap.

You cannot use the JK tranny. I would not trust it to hold up anyway. The computer, motor mounts, main wiring harness are replaced. Several hoses and lines (A/C) etc have to be modified or replaced. I doubt the stock 3.8 exhaust will line up.

I believe the Grand Cherokee is the engine of choice because the accessories (A/C pump, alternator, etc) work and fit with the swap. Using a car hemi, some accessories need to be replaced. At least, thats how it was a couple years ago.

Check your local vehicle codes and or inspection requirements. If, like in Michigan you have no vehicle inspections so anything goes, a V-8 is quite a nice improvement to a JK in my opinion.

If you search around there are some pretty good threads on here created by people who did the swap themselves.

Last edited by Yankee; Feb 10, 2012 at 04:30 AM.
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Old Feb 10, 2012 | 05:17 AM
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Originally Posted by Yankee
If you go to the AEV site under their hemi kits, and click on the installation tab, they have pretty detailed instructions on what it takes to install it. This will give you a good idea on what is involved.

h t tp://www.aev-conversions.com/shop/shop-by-category/powertrain/jk-hemi-kit.html

Burnsville Offroad also makes a good kit.

You can do it without buying a kit, the fella in the thread below recently did, it just takes innovation and maybe a little more time. Think he says he has only $6500 into the swap;

https://www.jk-forum.com/forums/show...6-My-Hemi-swap.

You cannot use the JK tranny. I would not trust it to hold up anyway. The computer, motor mounts, main wiring harness are replaced. Several hoses and lines (A/C) etc have to be modified or replaced. I doubt the stock 3.8 exhaust will line up.

I believe the Grand Cherokee is the engine of choice because the accessories (A/C pump, alternator, etc) work and fit with the swap. Using a car hemi, some accessories need to be replaced. At least, thats how it was a couple years ago.

Check your local vehicle codes and or inspection requirements. If, like in Michigan you have no vehicle inspections so anything goes, a V-8 is quite a nice improvement to a JK in my opinion.

If you search around there are some pretty good threads on here created by people who did the swap themselves.
Thanks, that's info I can use. I know there are many threads on this topic and I also saw your name pass by a lot of times , but there are so many threads on this topic that
I don't no where to start. And I'm not familiar with all the engine and tranny numbers.
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Old Feb 11, 2012 | 12:25 AM
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Yankee;
Can you tell me if the auto transmission of a grand cherokee fits in the wrangler and do most people stay with the original transfer case?

Thanks,
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Old Feb 11, 2012 | 11:39 AM
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Youll keep the transfer case. You wil need 5.7 or 6.1 (widely used) and the 545rfe transmission. Depending on the year of the engine, that will determine your complexity. Jeep speed sells complete do it yourself kits. Hotwire auto also sells the electronics and small parts.
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Old Feb 11, 2012 | 11:54 AM
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To be more precise, that's a Grand Cherokee WK I between 2005-2007 model year.
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Old Feb 11, 2012 | 03:13 PM
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Originally Posted by diegom6
To be more precise, that's a Grand Cherokee WK I between 2005-2007 model year.
You can use that motor, though most installers and myself will say find a newer model. If you can get an 09 and up you will have virtually no issues installing, and by that I mean nearly all lines will be in the right place, ie a/c, power steering. If you are really serious about it give Todd a call at Jeep Speed Shop. They sell an install kit for every motor that can fit and very competitively priced. I got several parts from him, while sourcing the rest myself. I didnt save a ton by doing that myself, in hindsight getting the kit from someone is way less hassle.
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Old Feb 11, 2012 | 03:17 PM
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Originally Posted by Dennisr
This engine is for sale in Europe and because the Ripp upgrade is not compatible with LPG I'm leaning towards a Hemi swap.

I'm totally new to the swap story, but I found out I need to buy a AEV kit to get the swap done.

Can anyone tell me what Jeep is in the picture (only pic available)and if the AEV kit is always needed? For example this; is a donor car with the computer and everything in it and it's a Jeep. Is it wrong to assume I only need a few new things like motor mounts etc.? I also need to know if the transmission in compatible?

Thanks,

Attachment 276019
You cant use the computer from the cherokee. They will give you a new computer to match up to the motor you install. I got my harness and computer from Hotwire Auto. You give them the VIN of your JK, they flash up the new computer and it really is plug n play. Check Jeep Speed Shop .com to see what all comes in the kit. All items are required, you can use much other than the motor and trans from the cherokee.
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