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Old 08-09-2005, 07:33 PM
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Join Date: Aug 2005
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4.2 shot, what emissions can I get rid of

I recently bought a 90 with a 4.2 knocking to beat hell, I am going to replace it with another 4.2. I want to know how many of these darn emissions lines can go. Just wondering, how hard are the mods to install a chevy engine in this thing? Appreciate your help. Looking forward being a part of the jeep club.

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Old 08-12-2005, 11:47 PM   #2
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Join Date: Apr 2005
Location: Smethport, PA
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ALL OF THEM. That of course depends where you live. I ripped all of them off of my 87YJ without any problems until I moved in to a county that did emissions testing. Looking back I wish I had swapped in a SB Chevy instead of dumping a bunch of money in my 4.2. Swapping in a V8 is a big project that will effect every party of your drive train. Make sure it is siomething you need before you tear into it.
87 YJ, 5.7/TH350/NP241, Custom 4 link/ Radius Arms, ADS Nitrogen Shocks, 35" Cooper STT
DaddyJeep build Thread:https://www.wranglerforum.com/f8/dad...ld-122601.html
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