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Unread 04-29-2011, 12:32 AM   #1
Registered User
1998 ZJ 
Join Date: Mar 2007
Location: Clinton,MS, Mississippi
Posts: 209
Need zj advice

Well i haven't been on here in a while so to everyone old and new hello.
I recently got myself a new jeep it's a 98 grand cherokee 2wd 4.0 . I have a few questions a buddy of mine is calling me out with his 95 thunder chicken because he said i talk to much trash for someone who owns a jeep and not a real racer and i really want to shut him up. i was wondering what all can be done to really pep the zj up i was thinkin 3.73 gears and a trac lock and maybe a 4.7 stroker. but i really don't have any idea of a parts list i'd need for stroking it . it's an auto and don't really want to swap a 5speed in this one because i just got it rebuilt and it's my daily driver. are there any bolt on items like suprchargers for a 4.0 because i haven't found any? Plus are there any performance chips for this thing. if you guys could steer me in the right direction i'd be very grateful

1989 Cherokee 3inch RoughCounrty 31 kumho's M/T
1998 Grand cherokee Jet stage 2 chipped and aero exhuast
89cherokeeJP is offline   Reply With Quote Quick reply to this message
Unread 05-02-2011, 09:08 AM   #2
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1997 ZJ 
Join Date: Sep 2010
Location: Augusta, Maine
Posts: 4,944
Stroke it, performance street cam, WJ intake manifold, 4 hole injectors, K&N cold air intake

then get this:
1997 ZJ Laredo
4" Lift
Plenty of lights
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Unread 05-02-2011, 09:58 PM   #3
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1998 ZJ 
Join Date: Nov 2008
Location: Mid Tn
Posts: 342
in a 98 the easiest swap would be to go to a 5.9. build it up and go for it!
remember: there is more to building an engine than throwing a bunch of money and parts into it. it needs to be well planned and thought out of what exactly you are trying to achieveother than beating your buddy at the next stop light.

go to

plenty of performance info there all geared for Grand's

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Unread 05-02-2011, 10:06 PM   #4
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1998 ZJ 
Join Date: Feb 2011
Location: south berwick, Me
Posts: 310
Is the 99+ xj manifold the same as the wj?
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Unread 05-07-2011, 07:11 PM   #5
Registered User
1998 ZJ 
Join Date: Nov 2009
Location: Rochester NY
Posts: 2,650
please dont ever buy a ebay turbo kit. my buddy bought one and has it on a crx that he dragged. it lasted 47 miles till the turbo blew and the fins got sucked through the intercooler. youre best bet is to stroke it, or like said before, drop in a 5.9L.

definitely check out for some wicked fast ZJs. many of those guys are running 408 strokers and/or blowers.
'98 ZJ on 37s and tons
'97 Cummins 2500
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