V6 XJ Question - Pirate4x4.Com : 4x4 and Off-Road Forum

Gibson · 10-23-2008, 04:51 PM

I have a question for all you XJ gurus. Will a 4.3 chevy swap in place of the shitty 2.8 that could be had? What all will I need parts wise, other than the 4.3 and relating harness and ecu, XJ, and motor mounts?

Gibson · 10-23-2008, 06:32 PM

nothing?

Tired · 10-23-2008, 06:45 PM

Well, No.
most 4.3s are a 90 deg V6
different mounting and trans than the 60 deg 2.8.

Bigger job than you may suspect.
Although a swap from a late 90s Chev full size 4x4 with the 4.3 will work with the whole powertrain.

I was actually wondering myself what DOES bolt to whatever trans they put behind the 2.8 in the Jeeps...

Gibson · 10-23-2008, 07:29 PM

the only thing i can think of that will is the 3.4 60*. otehr than that, idk.

splasher · 10-23-2008, 08:00 PM

The 4.0 Caddy V8 (sideways Fwd motor) will bolt up to the existing 2.8 tranny, and the 3.4 is basically a bolt in. Those are the only 2 "common swaps" I've heard of besides full replacement of everything 2.8 related.

The swaps on the 2.8 tubs are harder because of the early (smaller) inner fender/firewall configuration. Basically pass it up and get a later model XJ to use as a platform.

Gibson · 10-23-2008, 08:04 PM

i like the sound of the northstar swap, i have a shitty old caddy with a rebuilt northstar sittin at my grandmas, and shes dead, so the car is ripe for hte piken

Tired · 10-23-2008, 08:31 PM

These guys have some good info, very interesting stuff for what goes in what:
http://www.novak-adapt.com/knowledge...buick_swap.htm

splasher · 10-23-2008, 09:39 PM

Pretty sure it's a re-post, but there's lotsa good info here:
http://www.jeeps-offroad.com/showthread.php?t=4740

Gibson · 10-23-2008, 09:48 PM

sounds like all i need is a xj with a 4.0 that is shot, a dakota bellhousing, and teh northstar shit, tehn pound it all out

10-23-2008, 04:51 PM	#1 (permalink)
Gibson Registered User Join Date: Jun 2007 Member # 94562 Location: pittsburgh pa Posts: 162	XJ Question I have a question for all you XJ gurus. Will a 4.3 chevy swap in place of the shitty 2.8 that could be had? What all will I need parts wise, other than the 4.3 and relating harness and ecu, XJ, and motor mounts? __________________ The United States of America July 4, 1776 - November 4, 2008 RIP Last edited by Gibson; 10-23-2008 at 06:09 PM.

10-23-2008, 06:32 PM	#2 (permalink)
Gibson Registered User Join Date: Jun 2007 Member # 94562 Location: pittsburgh pa Posts: 162	nothing? __________________ The United States of America July 4, 1776 - November 4, 2008 RIP

10-23-2008, 07:29 PM	#4 (permalink)
Gibson Registered User Join Date: Jun 2007 Member # 94562 Location: pittsburgh pa Posts: 162	the only thing i can think of that will is the 3.4 60*. otehr than that, idk. __________________ The United States of America July 4, 1776 - November 4, 2008 RIP

10-23-2008, 08:04 PM	#6 (permalink)
Gibson Registered User Join Date: Jun 2007 Member # 94562 Location: pittsburgh pa Posts: 162	i like the sound of the northstar swap, i have a shitty old caddy with a rebuilt northstar sittin at my grandmas, and shes dead, so the car is ripe for hte piken __________________ The United States of America July 4, 1776 - November 4, 2008 RIP

10-23-2008, 09:48 PM	#9 (permalink)
Gibson Registered User Join Date: Jun 2007 Member # 94562 Location: pittsburgh pa Posts: 162	sounds like all i need is a xj with a 4.0 that is shot, a dakota bellhousing, and teh northstar shit, tehn pound it all out __________________ The United States of America July 4, 1776 - November 4, 2008 RIP

10-23-2008, 06:45 PM	#3 (permalink)
Tired Registered User Join Date: Oct 2008 Member # 121338 Location: BC Posts: 44	Well, No. most 4.3s are a 90 deg V6 different mounting and trans than the 60 deg 2.8. Bigger job than you may suspect. Although a swap from a late 90s Chev full size 4x4 with the 4.3 will work with the whole powertrain. I was actually wondering myself what DOES bolt to whatever trans they put behind the 2.8 in the Jeeps...

10-23-2008, 08:00 PM	#5 (permalink)
splasher Registered User Join Date: Dec 2005 Member # 63162 Posts: 109	The 4.0 Caddy V8 (sideways Fwd motor) will bolt up to the existing 2.8 tranny, and the 3.4 is basically a bolt in. Those are the only 2 "common swaps" I've heard of besides full replacement of everything 2.8 related. The swaps on the 2.8 tubs are harder because of the early (smaller) inner fender/firewall configuration. Basically pass it up and get a later model XJ to use as a platform.

10-23-2008, 08:31 PM	#7 (permalink)
Tired Registered User Join Date: Oct 2008 Member # 121338 Location: BC Posts: 44	These guys have some good info, very interesting stuff for what goes in what: http://www.novak-adapt.com/knowledge...buick_swap.htm

10-23-2008, 09:39 PM	#8 (permalink)
splasher Registered User Join Date: Dec 2005 Member # 63162 Posts: 109	Pretty sure it's a re-post, but there's lotsa good info here: http://www.jeeps-offroad.com/showthread.php?t=4740

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