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4.2 l xj with 4.0 head..... IS IT Possible????

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Old 01-24-2012, 09:20 PM
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Default 4.2 l xj with 4.0 head..... IS IT Possible????

is it possible to bolt a 4.2 to a aw4 and put my stock 4.0 head on it and run all my sensors and stuff for it to operate properly
Old 01-24-2012, 09:51 PM
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Ummm yes. http://lmgtfy.com/?q=4.2+with+4.0+head
Old 01-24-2012, 10:16 PM
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are the motor mounts the same and such i can get a 4.2 for 50 bucks with 60000 miles on it. it was swapped out of a 1987 wrongler im kind of new to the jeep community i mean motor swap wise
Old 01-24-2012, 11:40 PM
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Why would you wanna swap a 4.2 in? A lot of CJ/YJ guys will swap a 4.0 head onto their 4.2 but in that case they are going forward, not backwards like what you would be doing.
Old 01-24-2012, 11:59 PM
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sounds like he has got a blown bottom end on his and wants to use the bottom end on a cheap 4.2 and reuse his head.
Old 01-25-2012, 03:26 PM
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100% correct i have a big whole it the block of my 4.0 from a connecting rod bearing failing and the rod breaking and going threw the block and i got a 4.2 for $50 so i just courious if its possible its mearly temparay until i can afford to get a 4.0 and rebuild it the way i want
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