ive got a 96 12 valve with 370hp industrial injectors and #5 fuel plate just put on a 4" exaust. looking to go with a bigger turbo 191 dv's a 4gsk water meth and fass stage 2 fuel system and probably turn timing up to around 22. from what i've read i know that to do all of this i need to stud the heads for sure but what is the fire ring and how hard is it to do. -

This should help you out

Head studs
When upgrading your turbo, air pressure in the intake system typically increases and once this increase reaches 45-50 psi the factory head bolts start to stretch causing the head to "lift". When the head lifts too much the head gasket will fail and this failure will cost you.

Head studs are the ideal fix for those daily drivers trying to get more out of their truck O-rings. The next step up from head studs is O-ringing the engines cylinder head.

Head surfacing to ensure the surface is flat
An O-Ring groove is machined around each combustion chamber

With the heads installed the O-ring squeezes against a stock head gasket to hold the pressure in. An engine equipped with O-rings can contain boost pressures up to 70psi.Fire-rings For those who want the mother of all pressure containment then our fire-rings are for you. The machining process for the fire-rings is similar to that of the o-rings. The difference is how they seal. The fire-rings utilize a head gasket that is laser-cut to fit around them. The rings seal against the deck of the block instead of the gasket. These fire-rings and handle everything from your average tow rigs to a vicious sled puller. -

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thanx 4 the info but i posted this a day to early i totaled the truck last night. hot a cow at about 70 mph. i'm looking to buy another cummins though. would it be a good idea to o-ring or fire ring the 24 valves and the common rails if i were to upgrade what ever new truck i decide to get oh and stud the heads -

welcome to the site -

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1998 2500 12 valve QC Goerend trans, 4x4, gauges, Benched 500+cc 180 pump NO plate, 5" single stack, ICE BOX intake, 4K GSK, 60lb valve springs, 24* timing, AirDog 150, SDX 5X18s, 3rd Gen wheels Engineered Diesel 64/68 turbo, ARP studs. 13.4/99mph

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fire ring? isn't that a johnny cash song -

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Welcome from So Cal. Let me know if you have any wheel and tire questions. -

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well i'm right on top of things then.. cuz i told the guy at work Gordon Light year sings that song sundown...


then he tells me that's Gordon lightfoot bub.. -