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Message: <blockquote data-quote="stutaeng" data-source="post: 28322" data-attributes="member: 6175">Yeah. I think they (GM) started rolling some stuff off the assembly line under the table since they had Gen IV up their sleeves?Yeah, late 6.0 Gen III have the same cam bearings journals as the Gen IV, as well as the Gen IV connecting rods. That 2004 LQ4 engine I bought had the Gen IV connecting rods. That engine was bad, and the connecting rods were actually the only thing I reused for another build.The LQ4 on my 06 Suburban also had the Gen IV connecting rods. I did a DIY rebuild and installed an aftermarket mild towing cam. Used the CH-25 cam bearings which are wider and are meant for the Gen IV. No EGR on that one, of course.Yes, I believed they managed to deal away with the EGR by tweaking the cam specs, as well as better ECUs (P59), whenever that came out?</blockquote>