What where these 93 blocks in? Could you tell what caused the condition? Covered with rust stains from blown antifreeze etc,? I could Type OMG, too, but I'd prefer to hear about the actual facts surrounding this... Every 4.0L failure I have seen has been caused by, lack of maintenance, overheat, or cracked head on 0331 heads when they first came out. The junkyard is not the best place to determine what makes a bad engine. That's kind of why we call them junkyards! Mark Price Morgantown, WV 26508 1969 AMC Rambler, 4.0L, EFI, T-5 2004 Grand Cherokee Laredo, 4.7L, Quadratrac II .. "I could Type OMG, too, but I'd prefer to hear about the actual facts surrounding this..."~m.price *Honest ? Didn't you just post previously: "Block design? More worthless info for a daily driver." "None of these engines has actual problems related from block design changes."~m.price :] Here's the Dilly !Yo - it's a repeat it so read for Content this time: The '91-'95 Blocks Flexed - because Chrysler had stripped out casting material in the Mains & Wall bracing. The Block Failures led to them installing a moos y Main Stud Girdle - and to their adding casting material right up to the final NVH blocks casting runs. Don't worry Mark - Your '91 is the First Year of Crap engine Blocks. The Foundry Molds were Really Really Fresh. Now... What about that Turboing your '91 4.0 maybe plan you'd spoken about previously ? Ready to get Cracking ? OH~~! milnersXcoupe 1981 series50 _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list