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Old December 5th, 2003, 17:43
Garthbmn7's Avatar
Garthbmn7 Garthbmn7 is offline
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Join Date: Jul 2003
Location: St. Paul, MN
Posts: 72
Headers Question

Got a pacesetter header that was supposed to go on a pre 91 258 engine with a 4.0 head. Will it fit on my 98 4.0 head or are they completely different head measurements?
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Old December 6th, 2003, 06:40
rsalemi rsalemi is offline
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Posts: 432
Re: Headers Question

All the 4.0 heads use the same intake/exhaust bolt pattern and the exhaust ports (tho different sixe) all seem to fit in the ex gasket so the short answer is the header will bolt up - but newer XJ's use 2 O2 sensors so you might need to add a bung?
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