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Re: Anyone Blow a 6.0 Head Gasket Yet?
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It is a known fact that International made a mistake with the amount of bolts holding down the heads. Quite frankly there are not enough and they admit to it but defend themselves by saying there was no more room left for more bolts with the hardware necessary to work the 4 valves with the two push rods.
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Can you provide some links to this "admittance" on the part of International? I'd be most interested, since I know a number of International 6.0L engineers who were surprised when this explanation was relayed to them. Or, was this relayed off-hand, from someone who knew someone...et cetera...and so on?
When it comes to stock trucks, Nav knows exactly what can cause head gaskets to fail. It ranges from poor control strategies under odd circumstances, to manufacturing problems. However, additional bolts won't do a thing if certain conditions can cause all the related components -- the block, the gasket, and the head -- to flex in some form or fashion. And, they do. It's not nefarious, or negligent, or the result of someone trying to cheapen a design. It's just an inherent characteristic that appears in certain cases.
Beyond stock trucks, when it comes to modified engines, Nav, quite simply, doesn't care. They designed the engine to specified targets, and owe no obligation to those wishing to exceed them.
- Jay
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