4.0 almost done

[murdajeep]

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

[wrenchead99]

stroke it

make that puppy a 4.6 L

[murdajeep]

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?

[hps4evr]

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.

[calltrex]

you can get stroker kits.  search the net

[fony3]

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

[Giffer]

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

[80CJ]

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.

[Elsifer]

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.

[murdajeep]

anyone know of a place I can get a rebuilt or used 4.0
and how much is it gonna cost?

[80CJ]

Craig's List, Ken and Lisa, Ebay, Autozone in the states can get them both from the junkyard and rebuilt, classifieds.

[murdajeep]

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?

[4PLAYZJ]

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.

[unionjack]

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

[yjcanibul]

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