5.9L 12V Performance Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps Related to Performance and Longevity

de-bomb?

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Old Feb 24, 2009 | 12:34 AM
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Diesel Bomber
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From: Havre mt
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ok guys here it is, im forcing my-self to do a shollow debomb if neccessary. since no-body can o-ring a head around here im just throwing the stock head back onbut with the studs of course. my question is since i know a stuck headgasket will support the boost im pushing but ararently not the pacbrake. will a standard head gasket support the pressure of the exhasut break? if not, its up for sale
 
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Old Feb 24, 2009 | 12:52 AM
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... Why'd you sell the o-ringed head if ya needed it?
 
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Old Feb 24, 2009 | 12:56 AM
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i still have the head, here is the story, back in novermber i blew the headgasket, got a smoking deal for a complete o-ringed head, ported exhaust and valve springs, for $400 so i jumped on it. the deal seemed legit considering it was from C&N DIESEL PERFORMANCE, here locally, pulled it off to rebuild the engine and noticed there were cracks between every intake and exhaust valve, had it magnafluxed and its cracked into the valve seats on multiple seats. i call NICK at C&N DISEL and he new about it but didnt tell meso now he wont tak it back because he said he was doing be a favor by selling me this head, f-in putz, it makes me mad that a diesel shop for 6 years would go so low
 

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Old Feb 24, 2009 | 01:02 AM
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I have the stock head without studs and a brake with no problems at all...
 
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Old Feb 24, 2009 | 01:04 AM
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that is basically my question if i can leave my break on with a stock gasket and keep running my arp 12mm head studs?
 
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Old Feb 24, 2009 | 01:09 AM
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I've heard that every "turned up" truck has the cracks between the valves unless they have hardened seats.

I would say if Red can you can
 
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Old Feb 24, 2009 | 01:10 AM
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well these cracks are threw the exhast seats, the machine shop said i might be able to get 20,000 miles out of it befor it starts leaking
 
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Old Feb 24, 2009 | 01:12 AM
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I don't see why not. I'm running all stock with an exhaust brake and haven't had any problems out of it. Just don't get started on the DPF EGR tangent...
Unless you're running extremely high static compression, and making tons of boost, you shouldn't have anything to worry about.
 
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Old Feb 24, 2009 | 01:14 AM
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i rarly excede 20psi on daily basis unless someone tryes messing with me then i can hit 45, but i dont think that is enough to worry is it? i know the head studs will help alot
 
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Old Feb 24, 2009 | 01:23 AM
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No worries man The brake won't create that much back pressure to lift the head. Also when the brake is on the truck won't be under a load since it takes about 3 sec of no throttle b4 the brake will kick on...
 
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