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Power Strokes
6.0 Aftermarket
ARP studs stretching?
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[QUOTE="Strictly Diesel, post: 1043348, member: 1411"] No matter what stud and gasket you use, you have not changed the fact that there are only 4 fasteners per cylinder. The 6.0L fasteners are spaced farther apart than they are in any other modern diesel (which all have 6 fasteners per cylinder). The 2 CLOSEST (to each other) fasteners in a 6.0L are 4" apart, the 2 FARTHEST (from each other) in a 7.3L are 3" apart...THAT'S A HUGE DIFFERENCE! Better fasteners and newer gaskets and machining all help, but in the end you have not re-engineered the engine and have not fixed the real problem...so head gaskets failures, albeit hopefully fewer and farther in between, are still going to be a real problem. Whatever stud you use, make sure you torque it to the correct spec (per the manufacturer), using the correct lube (per the stud manufacturer). Adding additional torque "because the internet says so" is a good way to yield the fastener and make it useless. In the case of a harder fastener, it's a good way to break it. You will want to make sure that the heads are milled and perfectly flat. While the machine shop has them, getting them pressure and vacuum checked is a great idea. Having the heads o-ringed is another way to help the combustion chamber seal, and a good idea if you know you will be pushing the engine hard. [/QUOTE]
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