LS1 or stock 4.0------

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Apr 26, 2010 | 05:33 PM

#16

ig109

Thread Starter

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Joined: Apr 2010

Posts: 97

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I will start up a build thread as soon as possible.. Im going to try and take decent pics.. Only camera i have is my phone.. i hate to post up such terrible pics.. Lets just say i will have to get myself a camera and start snapping pics.. Im going to go thru the engine and replace all the fasteners with ARP. Im pretty sure the engine has been apart before and most of the bolts are one time use.. Just want to be sure.. Im going to start mock up this weekend if everything goes well.. At least im going to start attempting to make an adapter this weekend..

Apr 26, 2010 | 05:41 PM

#17

wewsel

Member

Joined: Aug 2008

Posts: 103

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From: Baton Rouge,LA

Year: 1998

Model: Cherokee

Engine: 4.0 I6

Cool

Apr 26, 2010 | 07:31 PM

#18

keith two tone cherokee

Seasoned Member

Joined: Aug 2009

Posts: 260

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From: westland mi

Year: 93'

Model: Cherokee

Engine: 4.0l

if you don't use it i take donations

Apr 26, 2010 | 07:43 PM

#19

Tural

CF Veteran

Joined: Jan 2010

Posts: 3,379

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From: Forest, VA

Year: 1999

Model: Cherokee

Engine: 4.0 I6

i'm a Mopar guy, but you can't go wrong with LS1. it all depends on if you're willing to do tons of fab work and have a vehicle that will be rather experimental. but experimental opens the endless door to more mods, so for the rest of us, that means knowing someone who can help us if we wanna do the same mods. just my two cents.

Apr 26, 2010 | 07:52 PM

#20

jason96r

Junior Member

Joined: Dec 2009

Posts: 54

Likes: 0

Model: Cherokee

I'd stick with a carb since that would be easier and even the propane carb if you wanted. Just use an electric fuel pump and if everything is set up correctly you will be doing just as good with a carb as FI. Heck just today I started my Barracuda with a high performance engine and carb'ed for the first time since last fall. It is no where close to dialed in and it started easier than my daily driver renix jeep.

Apr 27, 2010 | 01:58 PM

#21

ig109

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Joined: Apr 2010

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Well ive made the executive decision to go with the LS1.. I started a build thread "'Pane in my a$$"

check it out..

Apr 27, 2010 | 04:02 PM

#22

mcguyver_xj

Banned

Joined: Oct 2009

Posts: 2,231

Likes: 1

From: West Springfield, MA

Year: 1999

Model: Cherokee

Engine: 4.0

PAINLESS sells harnesses for LS1's cause i had an 86 olds cutlass that needed a motor and some guy had an ls1 with headers, cam, heads all aftermarket and a 6 speed behind it and i was looking on PAINLESS and they had a ecm and everything

Apr 27, 2010 | 05:00 PM

#23

teggy84

Newbie

Joined: Mar 2010

Posts: 28

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Model: Cherokee

http://http://www.novak-adapt.com/knowledge/xj_swap.htm
happy birthday. they have an adapter for the ax15 to gm gen III ls motors

Apr 27, 2010 | 05:31 PM

#24

206junglist

Member

Joined: Jul 2009

Posts: 216

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From: Seattle, Wa

Year: 1998

Model: Cherokee

Engine: 4.0 HO

Ls1 is going to cost a lot and require a lot of time and custom fab. If money and time is not an issue LS1 all the way. Personally if I was going to swap in anything but a 4.0 it would be Diesel. 4bt or OM 617 maybe an Isuzu. x1235 on build thread

Apr 28, 2010 | 02:22 AM

#25

fantic238

CF Veteran

Joined: Jun 2009

Posts: 5,383

Likes: 5

Year: 1988 limited

Model: Cherokee

Engine: 4.0 litre

Quote:

Originally Posted by ig109

I never thought of that.. I actually have a holley baseplate 4 barrel style propane setup off of an old propane powered Schwans truck.. That would be absolutely sick.. That may be the way to go..

On the oposite end of all of this i am having issues.. I keep reading about how the Lsx engines have .400 difference in the depth of the flywheel-trans mounting surface.. Meaning that i would have to run a spacer to make the clutch pilot on the AX15 line up with the pilot bushing.. Or you can run the extremely hard to find 6.0 truck flywheel that is already thicker and that would fix all of my issues.. OR i could make my own adapter and make it .400 thinner and out of steel to allow me to not have to run anything special.. Either way it is going to be a pain.. but if i can pull it all off then it will be absolutely unstoppable drivetrain wise..

Anyone have one of the Novak adapters??

I can help you out with the propane if you want, i've done a dozen conversions already.