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Old 05-29-2013, 06:19 PM   #1
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4.2 long block 89 yj

Where can I find one ? That I can trust who I'm getting it from

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Old 05-29-2013, 11:08 PM   #2
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It just says New Mexico in the profile. Start searching Craigs list and your local junkyards. See if you have any local engine overhaul shops they usually have something laying around. If that fails ask at the local machine shops they will know where and who to go to and could help you out.

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Old 05-30-2013, 12:09 AM   #3
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Send a message via Yahoo to Nubby55
? I'm building my own!
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Old 05-30-2013, 08:39 AM   #4
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A "long block" usually refers to a replacement (already machined, new parts, etc) rebuilt motor.

Are you looking for just a spare bare block to use in your own build?

In that case, CL or your local 4X4 club. You may find a cheap running motor. Either way, a local machine shop can test it for cracks & wall thickness, etc.
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Old 05-30-2013, 11:30 AM   #5
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Thanks for your replies .... We bought a yj wrangler 1989 And on the trip home and ten miles from house it developed a knock .... So I live in the mountains south central New Mexico. And it's pretty remote so I had a man with a four wheel shop in Las Crusas try to find a long block here in NM but no luck so I have been looking online and at Auto zone. I also talked with my mechanic that I trust and I think that I will start with dropping oil pan and check rod bearings then also do a compression test. Just to see what's there . I would do a 360 swap but its for my sixteen year old son and he would not be Abel to afford gas like that , In my research I cam up with this list .
So has anybody heard of any of these company's ?
1. California Engine
2. Promar Precision Engines
3. Rebuilt jeep performance engines
4. Auto zone

I haven't heard very much good with auto zone .
And other than eBay ratings nothing about the others.
Any input is very welcome good our bad
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Old 05-30-2013, 11:59 AM   #6
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Jasper
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Old 05-30-2013, 12:11 PM   #7
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Jasper
Thanks I will look .
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Old 06-03-2013, 02:19 AM   #8
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There's a Jeep yard in Colorado Springs, and a guy always posting on denver craigslist that he has rebuilt 4.2L's
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Old 06-04-2013, 09:07 AM   #9
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There's a Jeep yard in Colorado Springs, and a guy always posting on denver craigslist that he has rebuilt 4.2L's
Thanks for your reply !!!
But gladly I'm not going to have to replace it
Turns out a broken flywheel is the culprit ... Do I have to pull tranny and Tcase and replace it .
But for a couple of weeks now I was almost certain that was what would happen .
I really do thank you all for the responses I really learned a lot to this point .
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Old 06-11-2013, 11:17 PM   #10
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Got a lot done to jeep having to work by myself which can present certain problems when working with something this heavy but pulled tranny & tcase replaced flex plate flushed torque converter new seals in and out filter rear main seal oil pan gasket checked all Rods and mains valve cover gasket retorqued top end found new head gasket and new intake and exhaust gaskets new oil pump new thermostat and many more things to many to list hope to have it drive able by Friday
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Old 06-12-2013, 12:33 AM   #11
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Looks good! Just did pretty much the same to mine. Tore the drive train down and dropped in a new motor. Hey let me ask you, I have two wires, 1)black & 2) red w/black stripe, that come out of the main harness beneath the battery tray near the starter, about 12 inches long. Where do they go? I think they're grounds but not 100%. All I have to do to crank it for the first time is fill the fluids and connect those wires

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Old 06-16-2013, 08:35 AM   #12
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Thank you I like what you have done with yours too . I believe your right looks like grounds to an accessory .
It was a big week got mine all put back together late Friday and was able to start it drive it out of shop and back even better came in yesterday and the floor was bone dry under it
Now waiting on carb kit so it will run right .
But in the mean time the throughout bearing on my JK went out so I've started my second transmission job in as many weeks
Good news is we are going to take the Cherokee and go on a run today with our jeep club .
And I was able to score free muffler for the yj and it is almost a bolt in just need to get some hangers welded in
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Old 06-18-2013, 12:30 PM   #13
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I dropped in a new motor, replaced every nut, bolt, stud, hose, etc......
Rear Axle - Dana 44 from a Isuzu Rodeo 4:56 gears, Detroit Locker
Front Axle - custom width high pinion Dana 44 from a f-100 (narrowed 2 inches) 4:56 gears Detroit EZ Locker, disc brakes
Swapped the stock t-case with a NP231 with SYE.

And many other custom parts.....rear bumper/tire carrier, rocker panel guards, on board air, etc.......

Can't wait to hit the trail. Hiked into the Rubicon last Saturday for some motivation!!
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Old 06-20-2013, 10:24 PM   #14
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That's totally cool . I rebuilt my first carb today
And surprisingly not only did it start ..... But ran still need to adjust but I was proud so ill have yj on the street soon ..... I also removed and cleaned egr system on the JK .... And the new clutch kit came today so I will start on putting that back together tomarow
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Old 06-20-2013, 10:38 PM   #15
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Quote:
Originally Posted by Mbclark View Post
I dropped in a new motor, replaced every nut, bolt, stud, hose, etc......
Rear Axle - Dana 44 from a Isuzu Rodeo 4:56 gears, Detroit Locker
Front Axle - custom width high pinion Dana 44 from a f-100 (narrowed 2 inches) 4:56 gears Detroit EZ Locker, disc brakes
Swapped the stock t-case with a NP231 with SYE.

And many other custom parts.....rear bumper/tire carrier, rocker panel guards, on board air, etc.......

Can't wait to hit the trail. Hiked into the Rubicon last Saturday for some motivation!!
We bought our jeep for my son ... On the way home it started knocking and died 10 miles from house .
So we took oil pan of and pulled all the caps trying to find source of knock nothing was wrong that's when I found cracked flex plate so I pull tranny & TCASE replaced flex plate all seals and filters all new fluids & carb kit gaskets thermostats and belts plus we found a newer top on the cheep too
From what I thought first day ( piece of crap ) to today one month later I think it will be ok
Has been a learning adventure for sure .
I hope the best with your ride !
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Old 06-22-2013, 11:39 PM   #16
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Guess what got kicked out of the shop for about an hour today would have been longer but didn't want to run out of gas life was good today!!!!! And I finished the JK too
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Old 06-23-2013, 10:22 AM   #17
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Drive mine for the first time today. Ran good then i smelled rubber and it died. A wire was touching the exhaust manifold, melted and shorted. I fixed it but now I have to go through the harness and make sure all is good......ugh
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Old 06-24-2013, 07:29 PM   #18
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I'm waiting on half door frames then ill have new top hopefully by next week ...... Going with a spice top and half doors
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Old 06-24-2013, 07:34 PM   #19
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Drive mine for the first time today. Ran good then i smelled rubber and it died. A wire was touching the exhaust manifold, melted and shorted. I fixed it but now I have to go through the harness and make sure all is good......ugh
I saw the pics of your new engine !!!! Awesome I like the color .
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Old 06-24-2013, 09:00 PM   #20
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I saw the pics of your new engine !!!! Awesome I like the color .
Thanks! Figured if I spent the time up from I'd be more motivated to keep it clean in the future. Plus the Chrysler Hemi Orange is supposed to add like 20 HP

The spice top and doors will look good!

Next I have to finishing tube fenders and maybe this winter I'll paint it. Right now it's black on black on black.....I think the hood and tub could use a different color but I'm undecided on what color.
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Old 06-25-2013, 02:14 PM   #21
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Thanks! Figured if I spent the time up from I'd be more motivated to keep it clean in the future. Plus the Chrysler Hemi Orange is supposed to add like 20 HP

The spice top and doors will look good!

Next I have to finishing tube fenders and maybe this winter I'll paint it. Right now it's black on black on black.....I think the hood and tub could use a different color but I'm undecided on what color.
20 more like 50
Yes the funny thing is we live in a very small town and mad a deal for the top .... And wondered what it would look like we had paid for it through one of the guys in our club and had not seen it yet.... Then we saw a white and black yj with spice top in town and we where like thats cool looking come to find out that was the top we bought .... Lol
And I'm wanting tube finders on ours too !
But have other things first
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Old 06-27-2013, 11:12 PM   #22
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Got my new to me spice top and half doors
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Old 07-24-2013, 08:02 PM   #23
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Been a wile I got very upset with th Joop & had to punish it with a time out .... The top I got didn't fit as I have best top super top so the other was for OEM bows them took off broken 3" body lift replaced with daystar 1" that's when I found doors won't close and frame was bent left rear over the axel so had to straighten frame and readjust the body mounts the last two days some buddy's from jeep club helped me get it all welded I& I was so thankful for there help ... Also took the Carter BBD off and replaced it with a new Weber 32/36 got it to start and run today
Now next project remove rear floor pan and braces this is going to be outside of my comfort zone but i will have some guidance I will say that I'm starting to get tired of working on it and I want to drive it
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Old 07-25-2013, 08:35 PM   #24
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Guess what got kicked out of the shop for about an hour today would have been longer but didn't want to run out of gas life was good today!!!!! And I finished the JK too
Nice Jeep, I have the same fender flares.
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Old 08-01-2013, 10:45 PM   #25
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Nice Jeep, I have the same fender flares.
Thank you they where on it when we got it
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Old 08-02-2013, 02:29 AM   #26
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Love the YJ and that JK is pretty sharp looking. Nice colors and fenders.
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Old 08-15-2013, 10:34 PM   #27
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Love the YJ and that JK is pretty sharp looking. Nice colors and fenders.
Thank you ..... Can't be afraid to do some drilling I would rather push my jeep than drive anything else

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