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Unread 04-09-2009, 08:12 PM   #1
rosenb1995yj
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1995 YJ Wrangler 
 
Join Date: Apr 2009
Location: cincinnati
Posts: 1
Looking for help in engine swap choices, Chevy, Jeep, or any others

I have a 95 yj and i would really like to get rid of the 2.5 and AX-5 combo. I have done research but i cannot get a strait answer from anybody. I have narrowed it down to three choices.

4.3 chevy v-6 and NV 3550 to my NV231
5.3 chevy v8 and NV 3550 to my NV231
or
4.7 from the Grand Cherokee or Dakota to the NV3550.

I dont have a ton of money to spend but does anyone know if the 4.7 will accept the AX-15 or NV3550 with no adapter?
Which Tranny is better and is it strong enough?
And Which combo will give me the best option to be a dual purpose jeep?
And finally any other suggestions?

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Unread 04-15-2009, 09:05 AM   #2
FrankZ
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1997 XJ Cherokee 
 
Join Date: Nov 2004
Location: Colorado Springs, Colorado
Posts: 1,242
http://www.novak-adapt.com/knowledge/xj_swap.htm
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Unread 04-15-2009, 09:32 AM   #3
YeepieJeepie
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1990 YJ Wrangler 
 
Join Date: Mar 2009
Location: North Carolina
Posts: 376
Actually this is the one for the YJ:

http://www.novak-adapt.com/knowledge/yj_87_95_swap.htm

Also peruse the www.advanceadapters.com site.

I decided to go with a GM engine for my swap. The engines are more common and the swap has been done many times so there's more info and parts available. I thought about the V6, but since it has only a slight HP advantage over the 4.0L for much more work. I decided to go with a V8 Vortec engine. 5.3L Vortecs are very common and Novak says your NV3550 should handle it. You'll need a bell housing adapter.

According to Novak: "GM engine swaps are almost invariably easier, more productive and more affordable than Dodge, Ford and other conversions. These companies make some great engines, but you have to pick your battles when doing a swap and going with a well supported, well documented, easily acquired and broadly familiar powertrain is a key to success and satisfaction."

I'm going with a 6.0L Vortec. I figure if I'm going to do this, I'm going all the way. But I'll have to swap out my transmission too, as well as the rear end.

Last edited by YeepieJeepie; 04-15-2009 at 09:48 AM..
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Unread 04-15-2009, 09:52 AM   #4
FrankZ
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1997 XJ Cherokee 
 
Join Date: Nov 2004
Location: Colorado Springs, Colorado
Posts: 1,242
OOPS! I gots too many of dem der pages bookmarked.


Sorry 'bout that.
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Unread 07-03-2009, 12:42 AM   #5
FrankZ
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1997 XJ Cherokee 
 
Join Date: Nov 2004
Location: Colorado Springs, Colorado
Posts: 1,242
FWIW,
I'm currnetly working on my swap. I picked up a 99 5.3L for $150 and am in the process of rebuilding it...well still working on cleaning up the heads right now.

For those that are planning on swapping an LS motor into their rig:
www.LS1tech.com
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