whats the difference between a 89 and a 91 jeep cherokee

[kastein]

Muphry's Law strikes again!

 

[BenDiesel]

this thread has peaked my interest. it to have a 89 4.0 2door that the last 2 cyl came disconnected from the rest of the exhaust. some of my friends said the ho head exhaust ports were 6mm higher in the head or something like that?

i also found 2 manifolds on ebay that look interesting. you guys think they might work?
http://cgi.ebay.com/ebaymotors/AMK-...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

http://cgi.ebay.com/ebaymotors/JEEP...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

 

[joe_peters]

Cheaper here even with the shipping: http://www.ineedparts.com/index.php?target=products&product_id=15343

 

[BenDiesel]

ya i saw that but their site says

If your year, make & model is not listed below, do NOT order. It will NOT fit “other” 4.0L Jeep applications.

1991-1999 Jeep Cherokee
1991-1999 Jeep Wrangler
1991-1999 Jeep Wagoneer
1991-1992 Jeep Comanche
1993-1998 Jeep Grand Cherokee

and mine is a 89. other than the egr is there any thing else diff between the 2 years

 

[joe_peters]

ya i saw that but their site says


and mine is a 89. other than the egr is there any thing else diff between the 2 years

The only difference is the elimination of the EGR system in 91+, so none of the 91+ headers come with an EGR bung, as discussed earlier in this thread.

As discussed earlier, adding a bung is no problem. Minor chance that the downpipe might not align correctly with the header. Adding a short piece of stainless steel flex pipe in the downpipe before the CAT takes care of any alignment issue AND reduces stresses on the header.

Example: http://www.cxracing.com/mm5/merchant.mvc?Screen=PROD&Store_Code=CXR&Product_Code=FLEXPIPE-250x8