Looking at the mods in your sig, your probably running way too much boost. Speaking of which, how high have you seen it??

 

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there is nothing you can do to a 5.9 head and block you cant do to a 6.7 block and head.

 

60 lbs boost from twins to make 600 horse sounds pretty high to me. Just guessing here, but I'd say your best bet would be to get some drive pressure gauges and work on tuning those turbos.

 

If you are having head gasket problems the 5.9 will not help you, if you keep blowing them and just replacing the gasket, you need to get your head checked for warpage, if your head is warped you will keep blowing gaskets, if your head is still in check, then you have other problems. I assume you have studs and a external waste gate in the twins? If not you need them. The amount of boost you are running seems high for the power, but 6.7's do have high drive pressure, you might want to get your head cut for fire rings and run fire rings in your gasket. Hope this helps. Let us know.

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Well i see you have all of those things, should have read your sig first, have you checked your head?

 

the truck already is fired ringed its got arp 625's two wastegates and drive pressures are within 10 psi of boost at all times...i redid the vaccum lines on the turbos its only creepin up to about 48 psi now but still the gasket should be fine up to like 80 psi with fire rings

 

what do you have for a programmer it seems like timing is an issue and helps contribute to the head gasket failure I believe H&S has less timing than the Smarty try to contact Casey at H&S or Marco on the Smarty If you can't get hold of them contact Garrett at Pure Diesel Power he has been using a 6.7 for a tow vehicle and has some knowledge about them he hooks me up with everything

 

im running an xrt

 

OK what all would I need to do that I'm to the point I've shaved the head on my 6.7 to the point of being replaced now so what would need to be done to do what your talking. Is it much more price wise than what I'm bout to have to do. I'm already looking at buying a new head. Thanks

 

This might be stuiped but I don't have a clue what your talking about I do know that I've put ARP head stud surfaced the head and 6 months later I got probs again. Idk bout wastegate or firerings but I'm about to have it tore apart again so if there's something that can keep this from happing again plz tell me thanks for any info.