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  #13  
Old 02-16-2012, 06:57 PM
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Re: Bad News

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Originally Posted by Chaoul1 View Post
Stroking it means changing the internals like the crank, pistons, rods, lifters and supporting mods.

There are kits to making your I6 stronger. As you know we are NOT talking about the 4.7L V8. We are talking about a 4.7L I6. Or you can go with a 4.5L or a 4.6L I6 if you are willing to do this.

For Example:

http://www.ajeepthing.com/stroker-motor.html
Alright cool.
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  #14  
Old 02-16-2012, 10:12 PM
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Re: Bad News

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Originally Posted by Reichminister Goebbels View Post
I see all kinds of people saying stroke it to 4.7 when in fact I know little to nothing about engine stroking lol
Quote:
Originally Posted by Reichminister Goebbels View Post
Alright cool.

You do have a rare opportunity. Stroking the I6 to a 4.7 is something a LOT of 4.0 xj and wj owners want to do. It is not easy(but not too difficult) and not that cheap(though I doubt it will break the bank) but speaking from experience from some off-roaders who did it to their jeeps in my home town, the results are worth every penny and ounce of sweat.

One thing I will suggest, the header offered for the I6 can be difficult to fit in WJ bodies. There is no need to even buy one(unless it comes with the kit). Extrude Hone treats your stock exhaust manifold to an interior polish through forcing a sand-gel at high pressures through the entire structure, offering the same-if not better-performance numbers as a header.
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  #15  
Old 02-17-2012, 12:32 AM
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Re: Bad News

Sorry to hear that, but I agree with the others. Come back stronger.
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  #16  
Old 02-17-2012, 12:47 AM
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Re: Bad News

How much is the average cost to stroke a 4.0?
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Old 02-17-2012, 01:49 AM
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Re: Bad News

Quote:
Originally Posted by Reichminister Goebbels View Post
How much is the average cost to stroke a 4.0?
You're going to have to shop around.

Stroker kits can go from $700-800 on ebay to $3K at some sites, depending on what you want to do. This is your truck, so think long and hard about what you want to accomplish, make a DETAILED list of ALL the mods you would like, and refine that list to necessary/affordable, etc. I use Numbers on my Mac for a professional and detailed list when I start a project like this. You'd be surprised how some kind of spreadsheet makes things so much easier and keeps it down to earth.

Me? I'd find a 4.7L kit from a reputable source and aim for 280-ish H.P. and 320 ft/lbs torque. I'd also consider a $500 dollar port/polish head job pretty much necessary(unless you can do it yourself), and then Extrude Hone the exhaust manifold and maybe a Borla set up for the finish. It wouldn't hurt to give your rear end some attention with a rebuild and LSD too.
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  #18  
Old 02-17-2012, 04:59 AM
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Re: Bad News

Sorry to hear what happened, bro!!
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  #19  
Old 02-17-2012, 05:02 AM
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Re: Bad News

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Sorry to hear what happened, bro!!
Thanks man
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  #20  
Old 02-17-2012, 10:01 AM
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Re: Bad News

Wow, I miss a lot when I cant get on here for a day or 2. Sorry to hear about the WJ, bring her back even stronger!
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  #21  
Old 02-17-2012, 06:16 PM
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Re: Bad News

If your intent is to keep the Jeep for awhile, and everything else is in good shape, it's investment time. If your intention is to get out of it soon, hunt for a used motor. I replaced the 4.0L in my TJ awhile back. The new ones will come with a warranty and look good when you go to sell it later...keep all the paperwork. IF you want to upgrade while in the process, you can also get into a pre-stroked replacement that will simply drop in and bolt up. If you google search for it, there are a few manufacturers that have them ready to ship. Do yourself a favor and consider replacing the header while you're in there. It will be another $300ish for the part, but it's one of those things you should really do while you're in there to save a big labor bill later. Keep us posted on what you end up doing!
Sorry about your luck man...that sucks.
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  #22  
Old 02-17-2012, 07:20 PM
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Re: Bad News

Quote:
Originally Posted by TJXJWJ View Post
If your intent is to keep the Jeep for awhile, and everything else is in good shape, it's investment time. If your intention is to get out of it soon, hunt for a used motor. I replaced the 4.0L in my TJ awhile back. The new ones will come with a warranty and look good when you go to sell it later...keep all the paperwork. IF you want to upgrade while in the process, you can also get into a pre-stroked replacement that will simply drop in and bolt up. If you google search for it, there are a few manufacturers that have them ready to ship. Do yourself a favor and consider replacing the header while you're in there. It will be another $300ish for the part, but it's one of those things you should really do while you're in there to save a big labor bill later. Keep us posted on what you end up doing!
Sorry about your luck man...that sucks.
Thanks Tony and I certainly will.
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  #23  
Old 02-17-2012, 08:05 PM
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Re: Bad News

Here is another rebuilt option. http://shop.advanceautoparts.com/web...zoneAssigned=1 Also don't count out the old motor yet unless it seized up. Those 4.0's are extremely stout and might be just fine with a head gasket or a little head work. Have a pro you can trust take a look at it first. Sorry to here about the poor Jeep though.
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  #24  
Old 02-17-2012, 09:44 PM
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Re: Bad News

Quote:
Originally Posted by Reichminister Goebbels View Post
So my sister was driving my WJ and while she was driving it I guess the water pump was broken, the engine overheated and the head gasket blew and I think my engine is now shot Anyone know what the cost of average 4.0 I-6 engine would run?
WHOO! somebody else in my situation!! i rebuilt my 4.0 not too long ago. (like, two months ago. maybe you remember seeing my first post about my Jeep idling rough lol)

anyways, the water pump went bad, the previous owner had kept putting water (not coolant) in it, warped the head, warped the block, and i ended up having $715 in block/crank milling and $150 for one new valve, all new seats and seals, and shaving the head.

I got my block machined at R&R Engine (in Ohio. did a BEAUTIFUL job on it) and my changes were:
Cylinders: =.020
Crank: =-.010
Rods: =-.010

i used this rebuild kit:
http://www.ebay.com/itm/4-0-242-Jeep...ht_3834wt_1135

only $525 WITH CAM AND LIFTERS! they dont list .020 over pistons and rings, but you can call and special order them for NO additional charge.

everything went together well, and i have no complaints about this at all!!

my rough idle and dead cylinder was a torque spec issue.

if you decide to go the rebuilding route, i high recommend this rebuild kit. only thing i would change, go the autoparts store and get a different head gasket instead of the 3 layer metal one. i used a Fel-Pro gasket.

although, im very sorry to hear about your engine issues, i know they can be a heart breaker
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