4.0 replacement motor - JeepForum.com
 
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post #1 of 7 Old 08-04-2005, 09:09 PM Thread Starter
Jeepin Cam
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Location: St. Petersburg, FL
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4.0 replacement motor

Were is a good place to get a replacement 4.0 liter crate motor or long block I think I am going to need on for my 92 it has some rocker arm nosie and has low oil pressure I just want it to last till I can save up enough for a new one. or would it be better to get it rebuilt once it craps??


Two awesome XJs
92 Larado, 4x4, 4.0 liter, 140,000 miles, 3 Inch Rocky Road BB, 31 ATs

95 Country, 4x4, 257,000 miles runs like a champ!!, 4.0 liter, Stocker can't convince dad it needs a lift!!
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post #2 of 7 Old 08-05-2005, 07:55 PM
brandoncrone
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Run some 10W-30 or 20W-50 in it to builid up some extra oil pressure until you are ready. Aside from Mopar (which offers a 3 year 36000 mile warranty) there are tons of places for a crate engine, you could always go to a salvage yard and go used if you can find a low mileage one.

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post #3 of 7 Old 08-07-2005, 12:48 AM
gumcrew2
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I've got one you can have for $50 lol. It ran when I pulled it from an XJ, only problem was it reved uncontrolably high from twisting on a broken motor mount. It has 190,000 and I don't know the history of it. I'm the 3rd owner. I'd say buy a junker and build a stroker. It isn't hard or expensive, you can do it for under $500 + engine. All you need is a 258 crank and connecting rods and your set. Or if you really want to be sure it's a good engine, get the 258 crank and rods, bore it out .030 and get some cheap pistons.

"Nitrous? So is that like viagra for your Jeep?" -mom

"I flopped it"
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post #4 of 7 Old 08-08-2005, 09:35 AM Thread Starter
Jeepin Cam
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Well I could go pull a engine from the junkyard and build a stroker but I dont know if could rebuild it myself?? I dont really have the tools or expertece (spelling??). but a stroker for 500 + engine sounds pretty good! I think I could pull the motor and reinstall it it is just getting it rebuilt.

Two awesome XJs
92 Larado, 4x4, 4.0 liter, 140,000 miles, 3 Inch Rocky Road BB, 31 ATs

95 Country, 4x4, 257,000 miles runs like a champ!!, 4.0 liter, Stocker can't convince dad it needs a lift!!
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post #5 of 7 Old 08-08-2005, 01:25 PM
azcoyote
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Bet either of these guys would walk you through what you needed for the upgade to their engine...

http://cgi.ebay.com/ebaymotors/Amc-J...spagenameZWDVW


http://cgi.ebay.com/ebaymotors/TITAN...spagenameZWDVW


One of these plus what you already have should equal a solid engine.

http://www.jeep4.0performance.4mg.com/stroker.html


Cheers,
Wiley

JEEPLESS... :(
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post #6 of 7 Old 08-10-2005, 10:05 PM
PDshooter
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Jasper engines.......Jasper Ind..Ck them out.

96 GC 117K 4.0
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post #7 of 7 Old 08-14-2005, 07:35 AM
ExplorerDMB
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Jaspers can be expensive, but you get a good warranty behind it. At the shop I work at we are a Jasper installer and we actually do a lot. We have a Hummer H1 and a Motorhome right now that we are doing. I believe the warranties are like 3/yr 75,000 parts/labor.

-Drew


Cherokee - '92 Laredo 4x4
Explorer - '00 XLT 4x4 7" Lift, 4.56s, LSD, 33's
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