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Unread 04-29-2008, 05:22 AM   #76
supraman1990
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1980 CJ5 
 
Join Date: Feb 2007
Location: Claremont, NC
Posts: 1,366
Quote:
Originally Posted by bulljeeper View Post
cause its new.

i think i am leaning more towards using the 4.2 block.

i like the low end and i know that any real power problems will be solved by the fuel injection. i also have the 4.0 head that has been modified to work on the 258. so that would save more time and money right there.

my planned setup will be:

Fresh 258 block, stock (maybe a small cam)
Recent 4.0 Head and Headers
The Wiring System from 4.0 (including Computers and Ignition)
The hesco CPS kit
Intake
Various Sensors and stuff
the E2000 pump and accesories.
A/C for OBA



is there anything offhand you can think of that will make the not work...

If i put in a cam with some lift, will that throw off the fuel injection? or will it accomidate for it?

also would i have to swap to a 4.0 flywheel and bellcrank?
That will work fine. I myself am not a fan of the E2000, but many have had success with it. Mine just didn't push the fuel I thought it should.

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80 CJ5 in the process of a frame up resto
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The little stuff will kill me.
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Unread 05-08-2008, 09:57 AM   #77
CopperCJ7
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Quote:
Originally Posted by thantos858 View Post
Do you have pics? Im interested in options right now since my motor is near its end.

Here's my 4.0 swap (in progress)

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Guns don't kill people... Bad trail spotters do.

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:
Originally Posted by Broseph View Post
The thread will derail quicker than a walrus on a Crisco-soaked Slip 'n' Slide.
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Unread 05-08-2008, 09:59 AM   #78
CopperCJ7
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AEM Air INtake note:

One footnote about the AEM intake: You need to get the one for the 2007 Wrangler so it gets mounted on the passenger side fender. There is NO ROOM on the driver's side fender.
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Guns don't kill people... Bad trail spotters do.

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:
Originally Posted by Broseph View Post
The thread will derail quicker than a walrus on a Crisco-soaked Slip 'n' Slide.
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Unread 05-15-2008, 10:52 AM   #79
supraman1990
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I had plenty of room on my driver fender, in fact their is far more than on the passenger side IMO.
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The little stuff will kill me.
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Unread 05-15-2008, 07:11 PM   #80
BioTex
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I wasn't planning this swap, but today a 91 Cherokee Laredo fell in my lap. The vehicle is extreemely clean inside and out. I picked it up for $500. Dude said it quit running, and he doesn't have the $$$ to fix it. He thinks the motor need rebuilt. It has 250,000 mi. on it. Now I'm thinking it's a doable swap. Before I start though I want to have a clear idea of what I'm getting into. After reading this thread, I think I can handle it.
A VSS from a 91 wrangler was mentioned. Can someone elaborate more on this please? Only a 91' will work? Is this option cheaper than a Hesco solution? Will the Cherokee Computer be an option, or should I plan on something else?
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'85 CJ7, BDS 4" lift, 1" Body lift, 33x12.5, Shrockworks Sliders, 304 V8 with RV cam., T-176, D300, Dana 30, AMC 20.
1986 CJ10-A SD-33 Diesel/727/np208
1971 800B with 345/T-19
06' TJ Rubicon, 4" R.C. springs, BFG/AT 35s M.C. 6" fenders, rockers and surrounds, Currie front & rear adj. tracbars, tattons DC rear shaft, adj. upper - lower CA's. Bilstein 5100's
YJ Buggy Build Current project. Stroker/FI ?
1990 MJ Comanche 4.0L AX15/np231
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Unread 05-15-2008, 07:39 PM   #81
supraman1990
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Quote:
Originally Posted by BioTex View Post
I wasn't planning this swap, but today a 91 Cherokee Laredo fell in my lap. The vehicle is extreemely clean inside and out. I picked it up for $500. Dude said it quit running, and he doesn't have the $$$ to fix it. He thinks the motor need rebuilt. It has 250,000 mi. on it. Now I'm thinking it's a doable swap. Before I start though I want to have a clear idea of what I'm getting into. After reading this thread, I think I can handle it.
A VSS from a 91 wrangler was mentioned. Can someone elaborate more on this please? Only a 91' will work? Is this option cheaper than a Hesco solution? Will the Cherokee Computer be an option, or should I plan on something else?
Cherokee ECU will work just fine, the 91 is the only one that has the spot for a mechanical speedo and the electronic for the speed sensor. Hesco is expensive on the sensor.
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The little stuff will kill me.
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Unread 05-15-2008, 07:51 PM   #82
BioTex
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Quote:
Originally Posted by supraman1990 View Post
Cherokee ECU will work just fine, the 91 is the only one that has the spot for a mechanical speedo and the electronic for the speed sensor. Hesco is expensive on the sensor.
Can you clarify 91 any model, or 91 wrangler only. I got lucky on the 91 cherokee if it will work
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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 05-15-2008, 07:57 PM   #83
supraman1990
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Wrangler is the only one with the sensor.
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The little stuff will kill me.
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Unread 05-15-2008, 09:21 PM   #84
BioTex
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Is there an issue with the head bolt size? I read that pre 81 258 blocks use 1/2" head bolts, and 81 and newer use 7/16" bolts. Also that the 4.0 head won't mate up with the 7/16" block. Is this true? Will I have issues with trying to mate up the 4.0 head on my 85 block?
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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 05-15-2008, 09:24 PM   #85
supraman1990
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They make centering washers that will correct your issue.
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80 CJ5 in the process of a frame up resto
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The little stuff will kill me.
On the back burner for college.
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Unread 05-16-2008, 07:39 AM   #86
BioTex
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Quote:
Originally Posted by supraman1990 View Post
They make centering washers that will correct your issue.
Please don't think I don't appreciate this thread, and your expertise, but this is the kind of thing that can cause a lot of down time if you're not prepared for it. Where does one find these centering washers?

Anybody have after the fact problems with head gasket sealing properly do the the mismatch bolt size?

I read on another site about having to grind the 4.2 intake to alow clearance with the new 4.0 exhaust manifold. What is the story on this please?

I live in a very remote place, with limited options for obtaining parts. There is no machine shop etc... I need to order parts ahead of time. Can you think of any other "issues" that might occur? Ipurchased a whole Cherokee vehicle so I would have most of what I need. I starting to get nervous about attempting the swap. Any encouragement greatly appreciated
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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 05-16-2008, 10:31 AM   #87
bulljeeper
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i bought a stainless steel header/manifold for the 4.0 head. the cylinder tubes do not stick out near as far as they do on a high performance header. it was just small enough to where i did not have to cut the power steering bracket. the intake can be grind down easily with a bench mounted grinder. it is not hard just take your time. i did the 4.0 head when i was 18, and it was by far the most engine work i had done so far. and a year later it still runs like a champ. i am not sure about the problems you would have with a pre 81, but for me in my 86, i had almost no problems doing this swap.

any questions or need pics just PM me


are swapping the whole 4.0 motor or just the head?
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1986 CJ7
258 Inline 6
HEI Distributor
4.0 Head Swap
MC 2150
lOd Rear Tire Carrier

Soon to be:
4.0 Motor
All New Wiring
Gauges
OBA
Spyder Customs Crusher Corners

http://www.cardomain.com/ride/2527972/1
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Unread 05-16-2008, 11:49 AM   #88
supraman1990
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You can get the centering washers from the company that makes the special 4.0 carb intake. I think it's clifford that does it. They also sell them on summitt, but the name escapes me.
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80 CJ5 in the process of a frame up resto
96% complete.
The little stuff will kill me.
On the back burner for college.
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Unread 05-17-2008, 08:02 AM   #89
BioTex
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After reading up on the 4.o swap, and checking prices, I've decided the 4.0 complete engine swap is the easiest route for me to go. I have a 91 XJ complete motor, harness, ECM etc... that I can rebuild. This will allow me to still drive the CJ up until the 4.0 is ready to install. Now the desicion to stroke or not! What all is involved here? I need to know what I would be getting into upfront, as we have no machine shop within 200 mi., so I only want to make one trip if possible. I know you use a 258 crank in the 4.0 block, but what else?
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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, 08:34 AM   #90
supraman1990
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I'm not really positive on the strokers, I haven't investigated doing it yet as a stroker is in the future for me, after I get the Jeep back on the road and have money to spend. My only advice on that is to Google it and see what comes up, I know their are several good stroker articles. I'm pretty sure you use the 4.2 crank, rods, and pistons, and get the 4.0 bored .20 over, but don't quote me on that.
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80 CJ5 in the process of a frame up resto
96% complete.
The little stuff will kill me.
On the back burner for college.
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