Calgary Jeep Association
4x4 Related Groups => Tech Talk => Topic started by: murdajeep on June 13, 2007, 05:55:04 PM
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I got a 91 YJ 4.0L
I recently went out and sucked in a bunch of water and
ever since the jeep has been burning mad oil. Serves me right for
not snorkeling the jeep. I have done the snorkel and works great,
but now I have to decide what to do with the engine. I keep just
throwing in $8 crappy tire oil every week. I know the the Rings are
more than likely shot and the top end could be damaged.
Any suggestions on what i should do (ie, rebuild it, get it rebuilt, buy a
reman, or buy a used)
Any hints would help.
Thx
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stroke it :D
make that puppy a 4.6 L
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is there any kits out there to stroke it?
Or a shop here in calgary that will do it.
How much am I looking at paying?
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i thought i read somehwere that the early HO4.0L heads flowed the best and had the best results from porting. i know its a hi-horse power thing but it can't hurt if you have the head off.
most likly you bent a rod and its just letting oil burn right on through. this happened to me old engine. but it ran fine and didnt burn oil... for 2 years. then the #1 rod let go through the side of the block.
start lookin for an engine, or pull your sooner then later. or look into that V8 swap.
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you can get stroker kits. search the net
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I was actually looking around at stroker kits this week. They range from 1-2 grand US. The two grand kit looks pretty complete, and say to give in the neighborhood of 260 hp and 350 torque.
http://www.ajeepthing.com/stroker-motor.html
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if your going to go through all that trouble why would you not just throw in a chevy small block?? i plan on dropping a big block into my gmc, so im thinking i will throw the 350 into the jeep. im sure someone here has done it. and i dont imagine it taking much if you can pick up a full doner vechicle. just my .02c
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if your going to go through all that trouble why would you not just throw in a chevy small block?? i plan on dropping a big block into my gmc, so im thinking i will throw the 350 into the jeep. im sure someone here has done it. and i dont imagine it taking much if you can pick up a full doner vechicle. just my .02c
Because 350's are made by Chevy and the 4.0 is made by Jeep. Other than some axles why would anyone run Chevy parts. :lol: Plus it'd be cool to have a stroked 4.0.
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Plus there is no need to change the wiring when doing a stroked 4L.
Same computer, same sensors. Makes for a much easier upgrade than a non-4L motor.
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anyone know of a place I can get a rebuilt or used 4.0
and how much is it gonna cost?
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Craig's List, Ken and Lisa, Ebay, Autozone in the states can get them both from the junkyard and rebuilt, classifieds.
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i heard some place that because I have a 91 engine
I cannot put a 92-95 engine in. That it must be a 91 jeep
yj engine for a 5spd.
Is this true or can I use any 4.0 from a manual tranny
from 91-95?
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Check this page out. It has all sort of info on stroking 4.0L. It also includes a bunch of different parts combinations and the expected horsepower when finished.
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hey easy on the whole jeep/chevy thing, i kinda like the mix. :lol:
i find chevy easier to maintain and cheaper for parts and i get 300plus hp with torque to spare,
darren
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not sure why your were told replace with 91 only ... anyone ?
I am not as talented as some (ok many :roll: ) on this site but my suggestion is if you were happy with perf before your misfortune then I would think the most econo solution is to rebuild what you have to stock or find a good same as 91-95 swap ...
if your one of the talented than of course anything goes ...
having said that, if $ is no concern then a v10 viper engine will also fit
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hmmm a v10 RT jeep, now you got me thinking!!!! but in all honesty i would stick with a rebuild.the I6 4.0 is a very capable motor
darren
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druel .... http://www.burnsvilleoffroad.com/MotorSwap/TJ/TJ83L.aspx
interesting it says you only need to swap axles with the viper install , I would think tranny/tc would follow :roll:
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I think throwing a 5.7 hemi or a turbo diesel in a jeep would be awesome!
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ya I found a couple of 4.0 I6's at Jeep stuff so i will prob give then a call.
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Check this page out. It has all sort of info on stroking 4.0L. It also includes a bunch of different parts combinations and the expected horsepower when finished.
Sorry forgot to give the link :oops: :oops:
http://www.evolutionmachine.com/index.php?showtopic=411
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Because 350's are made by Chevy and the 4.0 is made by Jeep. Other than some axles why would anyone run Chevy parts. :lol: Plus it'd be cool to have a stroked 4.0.
Cost
Availability
Weight
Aftermarket
Horsepower
Fuel mileage
Throttle body injection
more then 1 wrecker
More then 2 aftermarket performance outlets. Actually, thousands versus hesco and cliffords....lol
For the record, I like strokers too :D :D :D
But "jeeps dont die, just get chev parts" is an expression that has been around for years because of a few reasons :wink: