4.2L intake manifold interchangable with 4.0L Engine?? - Pirate4x4.Com : 4x4 and Off-Road Forum
 
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Old 04-23-2008, 04:46 PM   #1 (permalink)
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4.2L intake manifold interchangable with 4.0L Engine??

Hey a loacal salvage guy in my town has a 4.0L in his yard with no wiring, I blew my 4.2L up and can't find one anywhere, i was wondering if I can swap the intake manifold off my 4.2 and put it on the 4.0L and run it like that. If it will fit what kind fo problems will I run into? Jetting, timing and such....
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Old 04-23-2008, 04:58 PM   #2 (permalink)
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Don't know if this helps, but I am running an 88 Yj 4.2 intake on a 96 4.0 head.
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Old 04-23-2008, 05:58 PM   #3 (permalink)
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Quote:
Originally Posted by archie_james_c View Post
Hey a loacal salvage guy in my town has a 4.0L in his yard with no wiring, I blew my 4.2L up and can't find one anywhere, i was wondering if I can swap the intake manifold off my 4.2 and put it on the 4.0L and run it like that. If it will fit what kind fo problems will I run into? Jetting, timing and such....
yes its doable with minor modifications. google "monsterslayer jeep", depending on your smog laws you can also go to an aftermarket 4 barrel intake and carb.
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'89 YJ, 4.2L, B&M shifter, '91 efi, '99 intake, 52" rear springs, 44044 front...

Last edited by YJ4LIFE; 04-23-2008 at 06:01 PM.
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Old 04-24-2008, 10:36 AM   #4 (permalink)
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Quote:
Originally Posted by archie_james_c View Post
Hey a loacal salvage guy in my town has a 4.0L in his yard with no wiring, I blew my 4.2L up and can't find one anywhere, i was wondering if I can swap the intake manifold off my 4.2 and put it on the 4.0L and run it like that. If it will fit what kind fo problems will I run into? Jetting, timing and such....
This will answer your question;

http://jeep.off-road.com/jeep/articl....jsp?id=277013
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