O ring heads?

[strokin6L]

I've had o-ringed heads for over 6 years on my truck with zero issues. Pesonally if i was to do it again i would just do stock gaskets with ARP and not even bother with the o-rings...just don't need them.

[wrdriggs]

Originally Posted by PGreenSVT

Forget them. They are not meant for DD engines and will result in more maintenance. Just do oem head gaskets and head studs. If studs and oem head gaskets can hold all the power Shawn Ellerton throws at them they'll work for you.

If you don't know what's different about them you definitely don't need them.

what "more" maintinance would you have to do with o-ring'd cylinder heads.

i dont see how adding o-ring'd heads would cause you to do more to maintain the truck?

[TGauger]

I have the liberator o ringed heads on my truck. Have about 40k miles on them with no issues. I have studs as well. I haven't done anything extra to maintain them. I got my core charge back within a week of sending my heads back. Can't speak to their customer service as the shop that built my motor was the real point of contact with liberator.

[onebadcoastie]

My extensive knowledge on the subject which isn't much leads me to believe the only real difference is the o-ringed heads use a stainless ring and that the fire ring setup uses a mild steel ring and that with fire rings, you can also do the block and supposedly the fire rings allow higher boost #'s.

So, aside from the fact I have no desire to run them, I'm either missing something simple about the differences or they just really aren't that different.

[strokin6L]

o-ringing is that you are just doing the heads. Fire ringing is that you are grooving both the heads and the block for the rings

[TooMuch03]

Originally Posted by TGauger

I have the liberator o ringed heads on my truck. Have about 40k miles on them with no issues. I have studs as well. I haven't done anything extra to maintain them. I got my core charge back within a week of sending my heads back. Can't speak to their customer service as the shop that built my motor was the real point of contact with liberator.

Who did you have do your work? Was it Valley Diesel?

Originally Posted by strokin6L

o-ringing is that you are just doing the heads. Fire ringing is that you are grooving both the heads and the block for the rings

Exactly. I have been told that fire-ringed heads are the ones that allegedly have issues with daily driving. the rings get brittle and can crack. O-rings are supposed to hold up fine for daily driving. I don't really think either is necessary. Guys ahve made over 1k hp with oem gaskets. I also have a friend with a 7 sec cyclone that uses MLS gaskets, like our stock ones.

[TGauger]

Originally Posted by TooMuch03

Who did you have do your work? Was it Valley Diesel?



Exactly. I have been told that fire-ringed heads are the ones that allegedly have issues with daily driving. the rings get brittle and can crack. O-rings are supposed to hold up fine for daily driving. I don't really think either is necessary. Guys ahve made over 1k hp with oem gaskets. I also have a friend with a 7 sec cyclone that uses MLS gaskets, like our stock ones.

I had performance diesel in depere do the work.

[TooMuch03]

Originally Posted by TGauger

I had performance diesel in depere do the work.

Really. those guys are good. I had them do some work on my truck a while ago. Last time I talked to Norm he mentioned they were wanting to have a dyno day in the spring, did you hear anything about that?

[TGauger]

I did hear about it. Haven't heard an exact day or time. I went to the one in cedar valley that they did this past summer but didn't get my truck on there due to a broken leaf spring. Maybe I'll see you at one in the spring.

[TooMuch03]

maybe. What else did you have them do to your truck while it was up there?