Fire rings vs oring heads

[02POWERSTROKE7.3]

Going to be re doing my heads on my 6.0 this summer. Going to replace my arp studs with a set of h11. Running 285/150s, s475, ported intake, fuel system, built trans. What's the pro and con of doing fire rings vs oring heads?

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[MrOneEyedBoh]

I think Maryland Perf. Diesel O-rings... Maybe they can pop in. Im going to be doing mine too, MPD is an option for me, since Im very close to them. I think thats the only way they do them as well.

 

[strokin6L]

Hypermax fire ringed heads for nearly 8 years with zero issues.

 

[MrOneEyedBoh]

Whats was the cost that you paid said and done. Assuming it was just a stud job.. But yeah that was 8yrs ago.

 

[strokin6L]

Hypermax's fire ring head gasket kit is still the same price...$1000

 

[strokin6L]

Plus add the cost of machine work to cut the grooves in the head and cost of studs....that's it.

 

[MrOneEyedBoh]

Interesting... Thanks bro.

 

[swinky]

I was just going to start the same thread. My trucks mild compared to yours but I'm also planning on extreme studs and oringed heads.

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[MrOneEyedBoh]

Why did you come to the conclusion of o-ringed versus the fire ring?

 

[swinky]

Why did you come to the conclusion of o-ringed versus the fire ring?

Labor cost, only around 600hp, from everything I've heard fire rings will hold more pressure but don't take to heat cycles as well.

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[MrOneEyedBoh]

Im looking for 600hp as well.

 

[taterthedog]

Phone MPD for any O-ring questions. They cut the heads themselves, it only added $300 or something to the bill to have the heads o-ringed when they were off.


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[strokin6L]

Labor cost, only around 600hp, from everything I've heard fire rings will hold more pressure but don't take to heat cycles as well.

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Disagree on the heat cycles. My fire ringed heads are 8 years old. They take heat cycles just fine...no problems.

 

[97stoker350]

Pretty sure that FIRE rings can deal with a little heat cycling. Or else big companies like swamps and hypermax wouldn't use them. Just a thought

 

[swinky]

Pretty sure that FIRE rings can deal with a little heat cycling. Or else big companies like swamps and hypermax wouldn't use them. Just a thought

That's what I've always heard. They're a no go for a dd. That's what the Cummins guys say.

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[97stoker350]

That's not what I meant. I mean that they are probably ok for dd. 7.3 guys have no choice if they separate original gaskets, if they wanna make a high hp dd truck

 

[swinky]

Maybe it's different for us. We only have 4 studs per cylinder.

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[windrunner408]

KC Turbos is developing a 2-ring fire-ring gasket kit. He's about to try out the first prototype here in about a week. Gonna be running 285/75s with dual oil and I forget what size turbo it'll be. I know it's a big VGT. Wanna say 71mm but don't quote me.

 

[Sprman]

Been running 0-ringed heads from liberator performance now for about 5 years and have zero issues. Been through plenty of abuse and such. I went with them due to availability and timing. I'm happy with them.