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Old 11-21-2010, 01:29 AM   #1
Join Date: Nov 2010
Location: MARYLAND
Posts: 24
Engine Rebuild

So I have an '02 wrangler 4.0L with 175k and I'm looking to rebuild the motor soon. I was wondering if you have to get the block and head machined when ever you do a rebuild? Also, can you just replace the piston rings or must you replace the pistons as well? Just thinking. Curious how much people have spent on rebuilds. Thanks!

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Old 11-21-2010, 12:32 PM   #2
Join Date: Oct 2009
Posts: 341
with 175k miles
I would have it checked out completely
better to do a complete rebuild and take care
of all the possible issues that occur with High mileage engines.

i'm also in MD !

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Old 11-22-2010, 10:03 PM   #3
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Join Date: Sep 2010
Location: Fort Myers FL
Posts: 90
I elected to by the ATK long block motor since they go through everything my 03 motor is 2200.00 from them with me doing the install. I couldn't do it that cheap and do it right.
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Old 11-22-2010, 10:22 PM   #4
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Join Date: Jul 2010
Location: oxford. ms.
Posts: 939
I do them for 1300. but im in miss. I would do a full rebuild.
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Old 11-22-2010, 10:22 PM   #5
Abe Froman

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Join Date: Feb 2010
Location: Was in the mountains, now in Texas
Posts: 3,748
I did quite bit of work on my last 4.0 and it was right around $2500 with me doing a lot of the manual labor. You can get away just over a $1000 if you do a lot of the work and are handy with tools. I would rebuild it if I were you, but I restored my first car at 15 many years ago.
2000 Sahara, 3.5" Rubicon Express Lift, 1" spring spacer & 1" Body Lift, 33" or 35" BFG Mud tires, Front & Rear ARB, Rancho 9000 shocks, UCF Ultra High Belly Up, Savvy gas tank skid.

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