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  #1  
Old April 23rd, 2017, 19:47
kmanxj5050 kmanxj5050 is online now
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0630 head into 01 XJ

I'm putting a motor out of a 98 into a 01 that I bought. I forgot about all the O2 sensors on the manifold in 01's. Has anyone done this? If so how did you work around it?
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  #2  
Old April 23rd, 2017, 22:21
biztyke biztyke is offline
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Re: 0630 head into 01 XJ

you need an adapter plate. the 01 manifold does not line up properly with the older exhaust ports.

there might be a way to do it with an older manifold, but not sure about emissions and getting engine to run properly. the upstream sensors are important, even if emissions arent required as they determine air/fuel.

a member here made and sold an adapter a while back, looks like he still makes them: https://jeepexhaustadapter.com/
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Old April 24th, 2017, 07:49
kmanxj5050 kmanxj5050 is online now
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0630 head into 01 XJ

What about welding bungs for the up stream into the 98 manifold? They see everything pre cat anyways right?


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  #4  
Old April 24th, 2017, 10:27
md21722 md21722 is offline
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Re: 0630 head into 01 XJ

The most proper solution is to use a 0331 head on top of the 98 block and keeping all the 2001 emissions/manifolds/cats in place. Tampering with emissions is against federal law and discussion of doing so is not tolerated on this forum.

Last edited by md21722; April 24th, 2017 at 10:30.
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  #5  
Old April 24th, 2017, 10:51
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lazyxj lazyxj is offline
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Re: 0630 head into 01 XJ

Quote:
Originally Posted by kmanxj5050 View Post
I'm putting a motor out of a 98 into a 01 that I bought. I forgot about all the O2 sensors on the manifold in 01's. Has anyone done this? If so how did you work around it?
Aftermarket, performance headers, made for your 2001's emission exhaust, such as Banks. will cover the exhaust ports on a 930 head, without using any type of adaptor.
You will be able to retain the stock O2 sensors and two mini-catalytic converters.
You will have to fabricate brackets to hold the COP coil rail in place, since the 930 head lacks the threaded bosses that the coil rail bolts to.
http://www.naxja.org/forum/showthrea...highlight=0331
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Old April 24th, 2017, 14:32
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lazyxj lazyxj is offline
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Re: 0630 head into 01 XJ

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Originally Posted by lazyxj View Post
Aftermarket, performance headers, made for your 2001's emission exhaust, such as Banks. will cover the exhaust ports on a 930 head, without using any type of adaptor.
Whoops, should have said 630 head.
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Both XJs are still Real XJs http://www.naxja.org/forum/showthrea...hlight=real+XJ
01 Sport, 4.6L Russ Pottenger. stroker, AW4, 4" lift, 33 X 10.50 KM2, 4.56-8.25 TruTrac, D-30-E-Locker with alloy shafts, Hidden M8000 winch, Vanco front and ZJ rear disc brakes, Frame stiffeners, Lots of armor, Towing baseplate. http://www.flickr.com/photos/lwade/c...7603770130683/
1997 Country, Mostly stock, 2" lift, Engine mods, Towing baseplate
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  #7  
Old April 24th, 2017, 20:00
kmanxj5050 kmanxj5050 is online now
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Re: 0630 head into 01 XJ

Quote:
Originally Posted by md21722 View Post
The most proper solution is to use a 0331 head on top of the 98 block and keeping all the 2001 emissions/manifolds/cats in place. Tampering with emissions is against federal law and discussion of doing so is not tolerated on this forum.
Right because the gooberment is watching naxja for someone rigging up O2 sensors on a 16 year old jeep.
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Old April 25th, 2017, 16:24
go1lum go1lum is offline
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Re: 0630 head into 01 XJ

Cali or fed emissions? If fed just use older style exhaust.
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  #9  
Old April 25th, 2017, 17:51
md21722 md21722 is offline
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Re: 0630 head into 01 XJ

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Originally Posted by go1lum View Post
Cali or fed emissions? If fed just use older style exhaust.
Its an 2001 they were all CA with pre-cats. Swapping the computer/eliminating the pre-cats to revert to 2000 with federal emissions is illegal.
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  #10  
Old April 25th, 2017, 17:52
md21722 md21722 is offline
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Re: 0630 head into 01 XJ

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Originally Posted by kmanxj5050 View Post
Right because the gooberment is watching naxja for someone rigging up O2 sensors on a 16 year old jeep.
The rules are the rules, if you don't like them leave.
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  #11  
Old April 26th, 2017, 09:58
go1lum go1lum is offline
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Re: 0630 head into 01 XJ

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Originally Posted by md21722 View Post
Its an 2001 they were all CA with pre-cats. Swapping the computer/eliminating the pre-cats to revert to 2000 with federal emissions is illegal.
So they totally did away with fed emissions in 01? My 00 is a federal emission jeep.
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  #12  
Old April 26th, 2017, 10:27
Heavyopp Heavyopp is online now
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Re: 0630 head into 01 XJ

https://jeepexhaustadapter.com/0630-head/

I'm doing a swap now -- 98 grand engine with 27,000 miles on it into a 2000 XJ with cali emissions -- The 98 engine has a 7120 head

I bought the adapter plate above -- $120 shipped to your door -- It's well made and worth it to keep all the O2 sensors

You also need exhaust/intake gaskets for both the 0630 and 0331 heads
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  #13  
Old April 26th, 2017, 10:53
md21722 md21722 is offline
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Re: 0630 head into 01 XJ

Quote:
Originally Posted by go1lum View Post
So they totally did away with fed emissions in 01? My 00 is a federal emission jeep.
Correct. 2000 was available as federal or CA and 2001 was CA only.
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  #14  
Old April 28th, 2017, 07:01
kmanxj5050 kmanxj5050 is online now
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0630 head into 01 XJ

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Originally Posted by md21722 View Post
The rules are the rules, if you don't like them leave.


Good to see everyone is so friendly around here.


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  #15  
Old May 3rd, 2017, 08:22
kmanxj5050 kmanxj5050 is online now
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Re: 0630 head into 01 XJ

Can some one explain why the thin adaptor plate is needed? Why not just stack the gaskets on top of each other and bolt it up?
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