I just read a thread on www.gmsquarebody.com (6.2 porous block?) discussing the weakness of the 6.2 block. One guy said: "The damper isn't cracking the blocks. The blocks crack because the bulkheads are paper thin. GM made a number of modifications to the outer main bolts over the production life of the engine to try to mitigate it. OTOH, they never changed the damper design. They never solved the problem because it was inherent in the design, and without changing the bore spacing, or putting a huge bedplate under it like Navistar did you're never going to resolve that. Bad dampers will break cranks, but have you ever heard of one causing a block to crack in any other application?" I havent heard earlier that it should be any "built-in" weaknesses in the 6.2 block. My truck had run many 1000 miles and we are just planning a long trip with the camper on the bed. Does anyone on this forum knows anything about weak blocks for the 6.2?https://www.gmsquarebody.com/data/at...3c01ad064b.jpg