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Unread 09-14-2009, 01:00 PM   #1
Travis873o
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5.9L stroked or no?

so i'm doing a 5.9 swap. and was wanting some opinions on if i should stroke it or not.

i was already plannin on a whole new valvetrain, intake, exhaust, etc.

what are some positives and negative of strokin it.

any thoughts?

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Unread 09-14-2009, 01:01 PM   #2
theducksguts
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If the cylinder heads are machined correctly you can run it on regular 87. If not then it is premium which can get expensive. I have mostly seen stroked 4.0's but if you can afford it I say go for it.
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Unread 09-14-2009, 01:22 PM   #3
Travis873o
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well i dont have a problem runnin premium, in fact that's what i've always ran in the jeep.
and i was going w/ mopar performance aluminum heads, but if i get it stroked what should i go w/?
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Unread 09-14-2009, 02:02 PM   #4
squashman702
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Premium gas, 10 mpg (maybe?), all kinds of supporting mods (built 46RE~ $3-4k), and you're 18?

A regular 5.9 is fast enough without another $5k+ in what it would cost to do a custom shortblock. What's wrong with the 5.2 that's in it? Might be easier to sell what you've got and just find a factory 5.9, unless you've got the mechanical ability and time to burn.
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Unread 09-14-2009, 02:15 PM   #5
comptiger5000
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Squahsman - If he's 18, he's probably a student. And everyone knows we'd all rather be swapping an engine than doing homework.

Plus, it would be awesome to see what he could do with a stroked 5.9 if he has the time and money to invest .
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Unread 09-14-2009, 02:34 PM   #6
Travis873o
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squashman: ha yes 18 here, and i knew i'd need a built 46re reguardless if i got a stroked/built 5.9 as opposed to just a built 5.9. and the 5.2 is good, however i've added so many things to slow it down and plan to do more (front, rear steal bumpers, bigger tires, etc) and i want something not only to compensate for the small loss, but to make it quick as well. and although i've never done a motor swap, i'm very good with mechanical stuff.

comptiger: yes, i would much rather be swapping a motor than doing homework. lol
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Unread 09-14-2009, 02:58 PM   #7
squashman702
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Quote:
Originally Posted by Travis873o View Post
squashman: ha yes 18 here, and i knew i'd need a built 46re reguardless if i got a stroked/built 5.9 as opposed to just a built 5.9. and the 5.2 is good, however i've added so many things to slow it down and plan to do more (front, rear steal bumpers, bigger tires, etc) and i want something not only to compensate for the small loss, but to make it quick as well. and although i've never done a motor swap, i'm very good with mechanical stuff.

comptiger: yes, i would much rather be swapping a motor than doing homework. lol
I hope you've got a good part time job then. I'd say realistically you're looking at $3-4k plus if you got parts cheap for the short block and another $3-4k for a built 46RE. If you're in college, save your money for booze instead. If you're not in college, save your money for booze once you get there. No sense taking on that kind of headache/cost . . . it'll get frustrating when you can't do exactly what you want with it or it takes you forever to get the setup that you wanted because of limited work hours.

I went to school and bought my first ZJ senior year, and still had to work basically to support the Jeep, which didn't leave me much cash for other stuff. Even with the job I have now, it's just as much of a problem . . . the mods and problems just get bigger.

/Snowleopard post.
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Unread 09-14-2009, 03:27 PM   #8
Texas ZJ1
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Stroke it and you will find every weak point of your drivetrain.

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Unread 09-14-2009, 03:49 PM   #9
WyoZJ
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what he said ^
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Unread 09-14-2009, 03:55 PM   #10
Travis873o
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Quote:
Originally Posted by squashman702 View Post
I hope you've got a good part time job then. I'd say realistically you're looking at $3-4k plus if you got parts cheap for the short block and another $3-4k for a built 46RE. If you're in college, save your money for booze instead. If you're not in college, save your money for booze once you get there. No sense taking on that kind of headache/cost . . . it'll get frustrating when you can't do exactly what you want with it or it takes you forever to get the setup that you wanted because of limited work hours.

I went to school and bought my first ZJ senior year, and still had to work basically to support the Jeep, which didn't leave me much cash for other stuff. Even with the job I have now, it's just as much of a problem . . . the mods and problems just get bigger.

/Snowleopard post.
well i am taking 12 hours of school and waiting tables full time in the evening, yet somehow manage to find time on the weekends to not remember what exactly happend on my two days off lol

but i do realize this is not at all going to be cheap. ...trust me. lol

and if I do go for a 5.9 swap i WILL be swapping a built 46re for the 44re, i realize they arent the best of transmissions.
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Unread 09-14-2009, 03:59 PM   #11
Travis873o
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Quote:
Originally Posted by Texas ZJ1 View Post
Stroke it and you will find every weak point of your drivetrain.

Hunter
besides the transmission not being able to hold up to the power, what else would be weak? say i plan on going from cv to ujoint axles, and from cv to ujoint front drive shaft, and hpd30 instead of the lpd30. would these modifications hold up to the power of a built 5.9?
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Unread 09-14-2009, 04:40 PM   #12
Travis873o
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also, how bad would it impair the life of the engine?
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Unread 09-14-2009, 04:44 PM   #13
Texas ZJ1
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I just know that after 15 years of a 220 HP 318, my new 5.9 is causing all the drivetrain components to give me grief.

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Unread 09-14-2009, 04:55 PM   #14
Joshhamburger
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Quote:
Originally Posted by Travis873o View Post
squashman: the 5.2 is good, however i've added so many things to slow it down and plan to do more (front, rear steal bumpers, bigger tires, etc)
What exactly have you done to slow your jeep down? Your looking at 6-8 grand at least to make this swap work, plus a lift and tires. If you want something to go fast in, I'd suggest using that 8 grand on a wrx or some other rice rocket.
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Unread 09-14-2009, 05:30 PM   #15
ratmonkey
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here's my list so far.
complete junkyard 5.9, rusty but decent internally 500$
bore and hone, media blast, hot tank, new cam bearings, new freeze plugs, new tower bushing. 650$
esp 4" crank(cast), forged rods, custom 10.5:1 srp pistons. 1200$
assembly, file fit rings, two sets of main bearings since the crank journals were between sizes. 740

up on deck, hughes cam and valve springs 300$
gasket kit and timing set, 200$
heads(already on my other motor) 750$
air gap intake from hughes(on my other motor) 750
sct tuner 550

manual transmission and performance clutch swap, 1350 in total parts
8.8 rear swap, rebuid and brackets(not counting claytons arms and frame side) 900$
front wj akebono and rear cobra brakes 500$

i'm sure there'll be a hp30 or tj d44 in the front end next as well.
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