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Unread 05-17-2008, 09:04 AM   #91
CJHVN
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1985 CJ7 
 
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If I were you, I would not recommend the stroker.

The 4.0L is fine the way it is and a huge improvement over the carbed 258. The 4.0L is also a fairly easy swap and is pretty simple in stock form. As I understand it, there are a lot of modifications and trial and error to get the stroker to run well.

I rebuilt my 94 YJ engine, swapped it in, and I'm happy with it. I now have a strong running fuel injected engine. I'm happy.

Again, just my opinion.

Now, if I could just get my distributor indexed correctly......it's not easy to do this alone...

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85 CJ-7, 4.0L, twin stick/clocked flat Dana 300, SOA, 36" TSL's, 30/44 locked, Warn X8000i

92 XJ, 4.0L, AW4, Dropped NP231, 30/8.25, 4" DPG Hybrid lift, 33" MT/R's, JKS trackbar, JKS discos, OME Nitro Shocks, stinger bumper, Warn X8000i, etc. (work in progress)
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Unread 05-17-2008, 10:47 AM   #92
BioTex
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Quote:
Originally Posted by CJHVN View Post
Now, if I could just get my distributor indexed correctly......it's not easy to do this alone...
What is indexing a distributor? Is this a result from the swap, or just a nice thing to do?
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'85 CJ7, BDS 4" lift, 1" Body lift, 33x12.5, Shrockworks Sliders, 304 V8 with RV cam., T-176, D300, Dana 30, AMC 20.
1986 CJ10-A SD-33 Diesel/727/np208
1971 800B with 345/T-19
06' TJ Rubicon, 4" R.C. springs, BFG/AT 35s M.C. 6" fenders, rockers and surrounds, Currie front & rear adj. tracbars, tattons DC rear shaft, adj. upper - lower CA's. Bilstein 5100's
YJ Buggy Build Current project. Stroker/FI ?
1990 MJ Comanche 4.0L AX15/np231
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Unread 05-17-2008, 03:42 PM   #93
CJHVN
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I removed the distributor from the engine when I rebuilt it. It is very tricky getting installed "exactly" right. If it's a tooth off or 172 degrees off, it will run like CRAAAAP and you will pull all of your hair out trying to figure out what's wrong!

So, to answer your question....yes. It's a result of the swap. Unless you never remove the distributor and don't rotate the engine at all.
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85 CJ-7, 4.0L, twin stick/clocked flat Dana 300, SOA, 36" TSL's, 30/44 locked, Warn X8000i

92 XJ, 4.0L, AW4, Dropped NP231, 30/8.25, 4" DPG Hybrid lift, 33" MT/R's, JKS trackbar, JKS discos, OME Nitro Shocks, stinger bumper, Warn X8000i, etc. (work in progress)
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Unread 05-17-2008, 09:24 PM   #94
supraman1990
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I didn't pull my dizzy. Honestly, I'm going to stroke mine, they make kits that you can drop right in.
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Unread 05-17-2008, 10:29 PM   #95
DirtEater
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I have a local shop that wants $4500 otd to do a 4.0 swap in my CJ. The engine will have around 100K on it. Is this a fair price to pay for a swap out the door? Keep in mind this is SoCal, and it all has to be smog legal.

On the other hand, I can get my engine rebuilt locally for about $2100 installed. Howell kit for another $1200, plus around $500-600 to have it professionally installed(cuz I'm sure to screw something up). This would all be a total of about $3900. Not sure about doing the 4.0 head with this because I'm concerned about passing visual and sniffer smog.

So, like many others here considering their options, I haven't made up my mind which route to take.....
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1982 CJ7 4.2L ~ T-999 ~ Dana 300 ~ SOA Conversion
Dana 30/AMC 20 with Truetrac - one piece axle - 4.10's
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Unread 05-18-2008, 08:08 AM   #96
supraman1990
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Quote:
Originally Posted by DirtEater View Post
I have a local shop that wants $4500 otd to do a 4.0 swap in my CJ. The engine will have around 100K on it. Is this a fair price to pay for a swap out the door? Keep in mind this is SoCal, and it all has to be smog legal.

On the other hand, I can get my engine rebuilt locally for about $2100 installed. Howell kit for another $1200, plus around $500-600 to have it professionally installed(cuz I'm sure to screw something up). This would all be a total of about $3900. Not sure about doing the 4.0 head with this because I'm concerned about passing visual and sniffer smog.

So, like many others here considering their options, I haven't made up my mind which route to take.....
The 4.0 will actually do quite a bit better on smog than the 4.2, with the newer design and MPI. As far as doing the head, unless you know what your looking for, the heads look nearly the same. You would have to pull the intake and look at the ports to tell any difference. I think $4,500 is a little steep myself. I did my entire swap for less than $750, and the only part that I don't think would be smog legal is the fact that I don't have a cat. The 4.0 honestly doesn't have that much emissions equipment. I know it doesn't have EGR, and I am reasonably sure it doesn't have emissions either, so the cat is all their really is. My advice to you about all the smog would be to hop on to www.cjoffroad.com and find a member who has completed the swap in the Nazi republic of California and check with them about any smog issues.
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The little stuff will kill me.
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Unread 05-28-2008, 05:51 PM   #97
BioTex
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help thinning harness

I have the complete harness from my donor cherokee laid out. Where do I begin? Anyone have pictures of how to thin the harness? Seems I saw a writeup once, but can't find it again. I have most everything labeled. Please help...
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'85 CJ7, BDS 4" lift, 1" Body lift, 33x12.5, Shrockworks Sliders, 304 V8 with RV cam., T-176, D300, Dana 30, AMC 20.
1986 CJ10-A SD-33 Diesel/727/np208
1971 800B with 345/T-19
06' TJ Rubicon, 4" R.C. springs, BFG/AT 35s M.C. 6" fenders, rockers and surrounds, Currie front & rear adj. tracbars, tattons DC rear shaft, adj. upper - lower CA's. Bilstein 5100's
YJ Buggy Build Current project. Stroker/FI ?
1990 MJ Comanche 4.0L AX15/np231
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Unread 05-28-2008, 08:24 PM   #98
supraman1990
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Honestly, get your FSM for your year, and start cutting. You need to study the FSM and make sure you know what your cutting before you do. I had to put a wire or two back in when I screwed up my self.
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Unread 05-30-2008, 09:07 AM   #99
BioTex
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need wiring diagram for 91 XJ

Before I shell out $55 for the whole FSM for my donor 91 Cherokee, does anyone have the wiring diagram portion you can send me so I can thin my harness?
Since I have the whole car, maybe I can trade you something you need from it before I send it away.
Not sure how many pages, or how big it is, but I need good enough resolution so I can read the wire colors.
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'85 CJ7, BDS 4" lift, 1" Body lift, 33x12.5, Shrockworks Sliders, 304 V8 with RV cam., T-176, D300, Dana 30, AMC 20.
1986 CJ10-A SD-33 Diesel/727/np208
1971 800B with 345/T-19
06' TJ Rubicon, 4" R.C. springs, BFG/AT 35s M.C. 6" fenders, rockers and surrounds, Currie front & rear adj. tracbars, tattons DC rear shaft, adj. upper - lower CA's. Bilstein 5100's
YJ Buggy Build Current project. Stroker/FI ?
1990 MJ Comanche 4.0L AX15/np231
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Unread 05-30-2008, 09:29 AM   #100
CopperCJ7
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Isn't it true that with a stroker motor, you must run super unleaded gas? And with a stroker motor, you have to run heavier duty things, like the water pump, the coil, the plug wires, motor mounts, etc.
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Quote:
Originally Posted by John Strenk View Post
What CJ owner doesn't want to hack up his harness for the next owner to have fun with?
Quote:
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The thread will derail quicker than a walrus on a Crisco-soaked Slip 'n' Slide.
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Unread 05-30-2008, 09:41 AM   #101
supraman1990
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Quote:
Originally Posted by CopperCJ7 View Post
Isn't it true that with a stroker motor, you must run super unleaded gas? And with a stroker motor, you have to run heavier duty things, like the water pump, the coil, the plug wires, motor mounts, etc.
Depends what compression you run on the gas isue. If you run lower than about 9.5:1 you don't have to run premium. As far as the other heavier duty stuff, not really. You can run all factory if you want. However, if you are shelling out the cash to do a stroker, you can shell out the $100 for a bkool pump. Now, something I would upgrade is the injectors and the regulator, as without more gas the more air you are getting is useless.
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Unread 05-30-2008, 09:42 AM   #102
supraman1990
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Quote:
Originally Posted by BioTex View Post
Before I shell out $55 for the whole FSM for my donor 91 Cherokee, does anyone have the wiring diagram portion you can send me so I can thin my harness?
Since I have the whole car, maybe I can trade you something you need from it before I send it away.
Not sure how many pages, or how big it is, but I need good enough resolution so I can read the wire colors.
Honestly, I used more than just the wiring section. Plus, it helps to have the whole book when it says a wire name that you are border line on, you can turn to the section it is referenced to and figure out exactly what it is.
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The little stuff will kill me.
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Unread 05-30-2008, 02:59 PM   #103
BioTex
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Bought one

Quote:
Originally Posted by supraman1990 View Post
Honestly, I used more than just the wiring section. Plus, it helps to have the whole book when it says a wire name that you are border line on, you can turn to the section it is referenced to and figure out exactly what it is.
OK, I gave up and purchased one from E-bay. The guy cut me a better deal, so Problem solved.
__________________
'85 CJ7, BDS 4" lift, 1" Body lift, 33x12.5, Shrockworks Sliders, 304 V8 with RV cam., T-176, D300, Dana 30, AMC 20.
1986 CJ10-A SD-33 Diesel/727/np208
1971 800B with 345/T-19
06' TJ Rubicon, 4" R.C. springs, BFG/AT 35s M.C. 6" fenders, rockers and surrounds, Currie front & rear adj. tracbars, tattons DC rear shaft, adj. upper - lower CA's. Bilstein 5100's
YJ Buggy Build Current project. Stroker/FI ?
1990 MJ Comanche 4.0L AX15/np231
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Unread 05-30-2008, 03:04 PM   #104
BioTex
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Higher compression problems?

Some of the research Ive been doing tells me that with the 4.0 head swap, I will have around 10:1 compression. Is this true?
If so, I'm worried about my bottom end. I decided not to rebuild the 258 block, since it has only 98,000mi., and doesn't use oil. It still runs strong, but might be getting borderline for a 10:1 compression. Would a thicker head gasket help, if so, how much? I really don't wan't high compression. What are the options?
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'85 CJ7, BDS 4" lift, 1" Body lift, 33x12.5, Shrockworks Sliders, 304 V8 with RV cam., T-176, D300, Dana 30, AMC 20.
1986 CJ10-A SD-33 Diesel/727/np208
1971 800B with 345/T-19
06' TJ Rubicon, 4" R.C. springs, BFG/AT 35s M.C. 6" fenders, rockers and surrounds, Currie front & rear adj. tracbars, tattons DC rear shaft, adj. upper - lower CA's. Bilstein 5100's
YJ Buggy Build Current project. Stroker/FI ?
1990 MJ Comanche 4.0L AX15/np231
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Unread 05-31-2008, 11:14 AM   #105
supraman1990
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I'm sure a thicker gasket would lower it, slightly. As far as the compression ratio, I am not real sure. Since I did the entire swap I'm not real knowledgeable about the head swap. I'm sure someone that has done it will chime in.
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The little stuff will kill me.
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