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Unread 04-03-2002, 12:13 PM   #1
bidnizman
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4.2 getting tired, what to do?

i have owned my '89 Jeep Wrangler Laredo for going on 4 years now. I bought it with 150k miles, just rolled 192k miles, still have the original engine and Auto tranny. I need to replace the engine or have it rebuilt. What are my options. I'm thinking of keeping the 4.2 configuration and building it up, but is there more i could do for the same money? Also how much would it cost for an engine swap? I'd really like to have this ready for summer. I got a quote of $3500 from one shop, which seemed outrageous since i can buy the engine new with a 7 yr warranty for under $800. Help me out Jeepers, remember the wave, happy Jeepin.

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Unread 04-04-2002, 09:07 AM   #2
bidnizman
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bump
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Unread 04-04-2002, 11:17 AM   #3
4wheeler4CJ
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Where can you buy the engine for $800 with a 7-year warranty? And what does it include?
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Unread 04-04-2002, 11:56 AM   #4
bidnizman
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When i was last looking in the yellow pages I found a few places with the 4.2 right around $800. Come to think of it, the one under $800 might have had only a 3 yr warranty, and been a short block.
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Unread 04-04-2002, 12:34 PM   #5
4wheeler4CJ
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That sounds about right, a short-block for $800 rebuilt. I think you'll find yourself hard-pressed to get a long-block with a 7-year warranty for under $2000, LOL. And long block only includes the head, nothing else, LOL. <img border="0" title="" alt="[Wink]" src="wink.gif" />
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Unread 04-04-2002, 01:54 PM   #6
4wheel4fun
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Here's my 2 cents worth. Depending on the actual shape of your 4.2, I'd go with rebuilding yours. The money you would spend on a rebuilt, you can spend to rebuild yours, and the money you would spend to swap in another engine, you could spend on fuel injection. The 4.2 is a real workhorse and has excellent low end power. Couple that with FI and you've got a solid setup. Plus, while you're in the rebuild, you can up grade items like cam, etc......
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Unread 04-04-2002, 02:19 PM   #7
bidnizman
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I've looked at the fuel injection systems, but those seem to run almost $2000? There is no way thats worth it. I will build up the engine using other suggestions from this board-- carb, intake,cam,headers, ignition, etc. But why go FI?
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Unread 04-05-2002, 08:07 AM   #8
oilfieldtrash
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Once my plastic valve cover started leaking, I began actually paying attention to my 258. A compression check clued me in to a low cylinder, so I began weighing my options. A Yahoo search led to many rebuilt engines, both long and short blocks, many with some pretty low prices AND fairly long warranties! If you're the handy type with access to tools and beer, rebuild kits can be found fairly easily and fairly cheaply. At the risk of sounding like a sales pitch, I did find a fantastic deal at larrysperformance.com, crank, rods, the whole 9 yards for less than $400.00!!! Better cam, F.I and I think I'm there!!!
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Unread 04-05-2002, 08:12 AM   #9
4wheeler4CJ
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Yes, you could rebuild your block yourself, but that would mean a lot of down time, which is a problem if you use your vehicle all the time.

If you buy a short or long block already rebuilt, you can do the entire swap in a weekend. I did it before. I bought a stock rebuilt 258 block, bought all my performance parts (cam, intake/exhaust, valve cover, holley carb, etc. from Clifford Performance), and put all my performance parts on the block in the garage at my leisure while driving my tired motor. Also a good time to buy all new water pump, fuel pump, etc, obviously! Then, when I was ready, I started on Friday night, pulled my old motor, and started swapping the tin/covers, etc. that I needed off the old block. Then, by late Saturday, I was ready to drop the new motor in. I had it in and running nicely by Sunday afternoon. By Monday, I was back in business, which was important, as it was my daily driver.

Of course, I had to drive it with "temporary" Cherry Bombs bolted to the Dual Exhaust Header Collectors for a week (for backpressure, so you don't toast your valves), LOL, because my appt. for my Custom Dual Exhaust System was at the end of the week for Friday night/Saturday.

Anythings possible when you put your mind to it, huh? LOL
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