Liberator Performance O-Ring Cylinder Heads

[wrdriggs]

Looking for some reviews from people that have been running the Liberator Performance o-ring cylinder heads.

this is NOT a o-ring VS non o-ring cylinder head thread so please dont say one is better than another.

I am looking for real life experience with guys that have had good or bad experience with these heads.

• What other mods do you have?
  
• How many miles do you have on them?
  
• What do you use the truck for? Daily Driver? Towing? Race truck? etc.
  
• What issues if any have you had?

share you experience with them as a company as well as your overall review of the product.

[Eric@PTP]

I have a buddy who has a set on his 6.0, not this brand but they are oringed. Its been that way for 5 years now with no issues.

[powerstrokedieself250]

Not really recommend in daily drivers. messed with a few trucks

[wrdriggs]

Originally Posted by powerstrokedieself250

Not really recommend in daily drivers. messed with a few trucks

can you please explain why they are not recommended on daily driver trucks? please elaborate on your experiences thanks!

[wrdriggs]

Originally Posted by powerstrokedieself250

Not really recommend in daily drivers. messed with a few trucks

can you please explain why they are not recommended on daily driver trucks? please elaborate on your experiences thanks!

[powerstrokedieself250]

cant say much from experience but did a set on two trucks they have maybe 15k on them since havent had any issues dont need them unless going above 5 or 600 hp. i would personally stick with just studs and oem gasket. just read alot on them not being good for daily drivers because of the heat cycles

[Eric@PTP]

I think your confusing o-ringed and fire ringed together. Fire ring is not really recommended for a daily driver, however o-ringed heads are just fine for that purpose. O-ring is a thin piano wire type of ring that is pressed into a precut grove in the cylinder head, a fire ring is a thick ring that sits in a grove cut both in the head and the block. So the fire ring will sit 50% in the block grove and 50% in the head grove. Its great for race trucks that will see over 60 or more PSI of boost regularly. O-ring heads are good for about up to 60-65psi on a 6.0 and more on a 6.4 due to the increased clamp load and are perfectly fine for daily drivers.

[DoubleDpsd]

If you search the forum you'll find a build thread by a guy with screen name Dansomething iirc who did a build of his own using these heads and had good things to say. This thread is years old so getting an update from him could be difficult.

[windrunner408]

So, aside from Liberator, who else does "O-ring" heads??

[TGauger]

I have the liberator o ringed heads on my 05 harley edition f350. I use the truck as a daily driver and haven't had any issues. I bought the truck with a bad motor and had it gone through by a local shop that is well known for their performance work on diesels. They ordered the heads so I can't speak to customer service, but my shop spoke very highly of the heads themselves. Said that they can handle 50 PSI boost with no problem. I rarely get half that boost so I shouldn't need to worry. Again, I haven't had any issues with pulling an enclosed car trailer and using truck as a daily driver. Other mods that I have is an edge juice with att. 5" TB no can no kitty, bat mo wheel in the turbo, full bullet proofing with egr delete, s&b intake. I would think if you needed heads, go for it, if your heads are fine, just stud them.