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It isn't possible to get a 6.0 bullet proof I don't give 2 ****s what you do to it. A 7.3 or a 5.9 Cummins are both 800k + engines and you will not get that from a 6.0. I don't care if you o-ring the heads or what you do. It's the design.  They have 4 head bolts per cylinder and studs or not it ain't enough to hold the boost + massive compression it takes to make them get down the hwy.


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