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-   -   AEV Hemi conversion kit (http://www.wranglerforum.com/f274/aev-hemi-conversion-kit-175787.html)

Socc3rakd25 07-24-2012 02:48 AM

AEV Hemi conversion kit
 
Lookin into the hemi. Everyone knows aev has the hemi conversion kit, would love to get some opinions. Aev makes all the way up to a 6.4L v8 vvt hemi kit that runs about 7k.
Is the 6.4 significantly better than the 5.7?
Do the gains from the conversion even compare to a full hemi engine swap?
Would love some feedback from those of you with a hemi!!

rtguy 07-24-2012 04:45 AM

Quote:

Originally Posted by Socc3rakd25 (Post 2616179)
Lookin into the hemi. Everyone knows aev has the hemi conversion kit, would love to get some opinions. Aev makes all the way up to a 6.4L v8 vvt hemi kit that runs about 7k.
Is the 6.4 significantly better than the 5.7?
Do the gains from the conversion even compare to a full hemi engine swap?
Would love some feedback from those of you with a hemi!!

not really sure what u are asking here. the conversion kit is just what u need to stuff the hemi into your jeep, not a full motor. u need to get a new motor and tranny seperately. it is still a full engine swap. i hope u are not thinking the kit is a conversion of your current motor into hemispherical cylinders. the kit plus motor plus tranny plus programming=toal cost...not 7k

smaxberry 07-24-2012 06:07 AM

I have been doing a lot of research on this, it is on my 2-3 year plan. I found a vendor that sells the 392 for 6500, the cheapest I have found for a new motor. At that price it is that much better than the 5.7. I have not found if that engine includes all the accessories needed. You only need a new tranny if you have a manual. AEV and Burnsville makes reference to the GetReg 238, hard to find, and hard to find good reviews. The other option for staying or going manual is the NV4500, ~2200-2400 trans. The NV5600 is the exact same trans. The first, second and final drives are the same, but the 4500 is a 5 speed and the 5600 is a 6. I have found the 5600 for under 3k, but have not looked into what else would be needed for mating to a 392. I would think just the bell housing.

The other option is going auto, unless you already are. The current auto will handle this motor. The predicted 8 speed coming next year, will not handle any Hemi conversion, and may not even handle the super charger option.

Jeffs Jeep Yard is good place to start if you are considering a 4BT conversion. I decided against this, even though I am looking at the same costs. Based on I lose cruise control, and there are not snorkel to work with it yet. Most of what I have done involves water, and the 4BT conversion leaves the intake even more exposed. Jeffs page will reference the same manual trans (NV4500) and offer a new 3 speed auto. The JK auto will not work. PM me if you need any more of my research.

Socc3rakd25 07-24-2012 11:53 AM

Quote:

Originally Posted by rtguy (Post 2616283)
not really sure what u are asking here. the conversion kit is just what u need to stuff the hemi into your jeep, not a full motor. u need to get a new motor and tranny seperately. it is still a full engine swap. i hope u are not thinking the kit is a conversion of your current motor into hemispherical cylinders. the kit plus motor plus tranny plus programming=toal cost...not 7k

I realize that. My question was if it is which version of the hemi conversion kit would be better or if just buying a ready to go type hemi would be better. I did word the question a little weird.

Socc3rakd25 07-24-2012 11:58 AM

Quote:

Originally Posted by smaxberry (Post 2616352)
I have been doing a lot of research on this, it is on my 2-3 year plan. I found a vendor that sells the 392 for 6500, the cheapest I have found for a new motor. At that price it is that much better than the 5.7. I have not found if that engine includes all the accessories needed. You only need a new tranny if you have a manual. AEV and Burnsville makes reference to the GetReg 238, hard to find, and hard to find good reviews. The other option for staying or going manual is the NV4500, ~2200-2400 trans. The NV5600 is the exact same trans. The first, second and final drives are the same, but the 4500 is a 5 speed and the 5600 is a 6. I have found the 5600 for under 3k, but have not looked into what else would be needed for mating to a 392. I would think just the bell housing.

The other option is going auto, unless you already are. The current auto will handle this motor. The predicted 8 speed coming next year, will not handle any Hemi conversion, and may not even handle the super charger option.

Jeffs Jeep Yard is good place to start if you are considering a 4BT conversion. I decided against this, even though I am looking at the same costs. Based on I lose cruise control, and there are not snorkel to work with it yet. Most of what I have done involves water, and the 4BT conversion leaves the intake even more exposed. Jeffs page will reference the same manual trans (NV4500) and offer a new 3 speed auto. The JK auto will not work. PM me if you need any more of my research.

This is great research, Ive looked into some of this myself and I have the 2011 auto. and I really would love to keep the transmission if I can. I'll look into some of the stuff you mentioned and pm with any questions. Thanks again :thumb:

landi jeep 07-24-2012 12:43 PM

Quote:

Originally Posted by smaxberry (Post 2616352)
I have been doing a lot of research on this, it is on my 2-3 year plan. I found a vendor that sells the 392 for 6500, the cheapest I have found for a new motor. At that price it is that much better than the 5.7. I have not found if that engine includes all the accessories needed. You only need a new tranny if you have a manual. AEV and Burnsville makes reference to the GetReg 238, hard to find, and hard to find good reviews. The other option for staying or going manual is the NV4500, ~2200-2400 trans. The NV5600 is the exact same trans. The first, second and final drives are the same, but the 4500 is a 5 speed and the 5600 is a 6. I have found the 5600 for under 3k, but have not looked into what else would be needed for mating to a 392. I would think just the bell housing.

The other option is going auto, unless you already are. The current auto will handle this motor. The predicted 8 speed coming next year, will not handle any Hemi conversion, and may not even handle the super charger option.

Jeffs Jeep Yard is good place to start if you are considering a 4BT conversion. I decided against this, even though I am looking at the same costs. Based on I lose cruise control, and there are not snorkel to work with it yet. Most of what I have done involves water, and the 4BT conversion leaves the intake even more exposed. Jeffs page will reference the same manual trans (NV4500) and offer a new 3 speed auto. The JK auto will not work. PM me if you need any more of my research.

good info for us! thanks

nwapache 07-24-2012 10:03 PM

Where did you find that price on a 392?

smaxberry 07-25-2012 05:46 AM

Quote:

Originally Posted by nwapache (Post 2619041)
Where did you find that price on a 392?

Jeep, Wrangler items in JeepsAreUs store on eBay!

They do specials on this engine at this price, I have never seen what their normal asking price is. But the 6500 is still what they are asking even though the deadline has passed.

smaxberry 08-17-2012 07:43 PM

So I did some more research on the NV5600. The gears are 5.63, 3.38, 2.04, 1.39, 1.00, 0.73. The current 6spd 4.46, 2.61, 1.72, 1.25, 1.00, 0.84.

I have been thinking how I wanted to spread out my build. 37s will barely work with the gear chart commonly found here. With the stock set up 37s would be about 2100 rpm. With the 392 and nv5600 37s at 70 and 4.10 would be about 2k. Now that doesn't sound much. Better, but the 6.4 at 2k is about 150hp and 360ft-lb, the 6.1 is about 135 and 310, respectively. Which tells me that the 392 at 2k would give me the same accelerations I see now at a little under 3k, but the ability to pass while staying in 6th.

I would like the ability to keep this as a DD, but wheel anywhere I want when ever I want. I am not that worried about being called a poser given the money I drop for the lack of dedicated off roading, plenty of CJs get bigger than needed engines winches and other goodies and never go off road.

Please back me up if you think I am wrong somewhere.

damndirtydog 08-17-2012 08:25 PM

Quote:

Originally Posted by Socc3rakd25 (Post 2617184)
I realize that. My question was if it is which version of the hemi conversion kit would be better or if just buying a ready to go type hemi would be better. I did word the question a little weird.

I don't believe that Chrysler actually makes a "ready to go" complete drop in hemi for Wrangler. If your new jeep did not come from the factory with the hemi, shops that were modifying existing jeeps were fabricating and using other parts i:e, mounting brackets, wiring harness' modules etc. AEV produced the hemi kit to eliminate the need for scrounging up all the necessary adaptive parts. Also it's highly recommended to use the AEV ventilated hood because of the added heat from a larger engine and smaller engine compartment.

wanderer 08-17-2012 08:32 PM

chevy v-8 swap
 
There is anew kit out that llows for a chevy v-8 either 5.7 or 6.? whatever out alos there was an article on it in one of the 4 wheel drive rags a few months back


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