bradseals Posted November 10, 2013 Share Posted November 10, 2013 I'm looking to buy a valve cover for my 1991 jeep Comanche and I'm finding loads of them that say they'll fit on a 1993 4.0 . . I want to know if these will also fit the 1991, and if not, what is the difference? I'm in the middle of a restoration and buying everything new never used so in the event that the 93' cover won't fit where can I find a nice (metal) cover for a decent price? Link to comment Share on other sites More sharing options...
87manche1 Posted November 10, 2013 Share Posted November 10, 2013 91 is the same as 93. These covers go from 91-96 get a felpro rubber gasket not the cork way easier to use. Just installed one last night. Link to comment Share on other sites More sharing options...
Keyav8r Posted November 10, 2013 Share Posted November 10, 2013 Amen on the Fel-Pro rubber gasket! Link to comment Share on other sites More sharing options...
AeroNautical Posted November 10, 2013 Share Posted November 10, 2013 $30 over $5, but well worth it. I've got a valve cover from a 99 Grand Cherokee on my 88, fits perfectly. Pretty sure all 4.0 covers are universal, not sure about 2.5 though. Link to comment Share on other sites More sharing options...
bradseals Posted November 11, 2013 Author Share Posted November 11, 2013 you guys are saints . thank you Link to comment Share on other sites More sharing options...
HOrnbrod Posted November 11, 2013 Share Posted November 11, 2013 The 4.0 covers, be they stamped steel or cast aluminum, will interchange providing you use the correct FelPro gasket for the cover. One has spacers for the bolts (steel); the other does not (alloy). Also the CCV grommets, elbow fittings and tubes were different starting in 95-96 -ish (1/4 turn lock vs. press in). The CCV vent tubes were increased in size for better crankcase ventilation to better prevent blowby. Link to comment Share on other sites More sharing options...
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