Black ONYX failed AGAIN...? - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

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post #1 of 45 Old 04-15-2013, 07:35 PM Thread Starter
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Black ONYX failed AGAIN...?

might be beating the dead horse on this Black ONYX issue but did first HG job at 112K did ARPs, EGR delete, beat the crap out of it (draggin/sled pullin), sold it, at 150k new owner (buddy) Blew the first set of BO gaskets, So i tore it down AGAIN and replaced them AGAIN.. like an idiot I put in another set of BO gaskets,( this was before the huge alerts came out on the BOs) now truck has 208K and is badly puking again. From 150k to 208K it only had a 60hp tow tune on it and was used as a work truck only...

tried new cap, EGR is deleted, im going to check for gasses in the degas tomorrow but is there anything else that could cause this that I might be missing or are the BOs really that predictable for failure??

09 F450 CC LB lariat 6.4 black on black 23k miles, stock.. (For now)...


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post #2 of 45 Old 04-15-2013, 07:59 PM Thread Starter
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also heads were pressure checked and decked .006 when i did them at 112K.. did not check them at the 150k time..

09 F450 CC LB lariat 6.4 black on black 23k miles, stock.. (For now)...


97 F250 SC LB 4x4 7.3 05 Superduty axels, 18" King Ranch Rims, "under the knife"

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post #3 of 45 Old 04-15-2013, 08:04 PM
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the black onyx gaskets from what i've read in google and on here are just that bad.. time to throw on some new OEM ones i guess!

2007 Ford F250 Lariat 6.0 Powerstroke

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post #4 of 45 Old 04-15-2013, 08:08 PM
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Sounds like your gaskets. The only gaskets recommended for studding a 6.0 are OEM gaskets. Not sure if you consulted with anyone on here before using BO either time but you would've been instructed not to use them. A few months ago there was a guy that was literally told by about a dozen members to go OEM but decided to go with Victor Reinz, I'm sure he'll be back wondering why his heads blew again lol.

Are you planning on going the OEM route now after 3 blows in 100k?


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post #5 of 45 Old 04-15-2013, 08:10 PM Thread Starter
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yeap Ive been installing OEMs ever since (which was right after i did this truck unfortuantly) we were hoping for the best but I think time has run out, Ive read the black onyx will warranty them but I want cash not new ones..lol.. Is there a record for longest lasting BO gaskets in the 6.0.. these made it 58K!!!

09 F450 CC LB lariat 6.4 black on black 23k miles, stock.. (For now)...


97 F250 SC LB 4x4 7.3 05 Superduty axels, 18" King Ranch Rims, "under the knife"

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post #6 of 45 Old 04-15-2013, 08:18 PM Thread Starter
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Quote:
Originally Posted by kirbybc12 View Post
Sounds like your gaskets. The only gaskets recommended for studding a 6.0 are OEM gaskets. Not sure if you consulted with anyone on here before using BO either time but you would've been instructed not to use them. A few months ago there was a guy that was literally told by about a dozen members to go OEM but decided to go with Victor Reinz, I'm sure he'll be back wondering why his heads blew again lol.

Are you planning on going the OEM route now after 3 blows in 100k?


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Ha, I did a full write up on this very forum on an In cab Install back in 09.. nobody said a word, right after i did the second set i started to see the controversy threads popping up,, soon after huge red flags..

09 F450 CC LB lariat 6.4 black on black 23k miles, stock.. (For now)...


97 F250 SC LB 4x4 7.3 05 Superduty axels, 18" King Ranch Rims, "under the knife"

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post #7 of 45 Old 04-15-2013, 09:13 PM
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Your gonna need a new set of heads as well this go around. Reason being is you have already taken .006" off and the limit is .008" (my machine shop won't touch them if they are out more than .006") so this time it's gonna be spendy for sure. Just make sure you don't use VR gaskets again.

Might be cheaper to throw in a new long block from Blackwater Engines. $4400 gets you a full blueprinted long block with OEM head gaskets and ARP studs plus a 2 year 50,000 mile warranty. Btw that $4400 is SHIPPED and they don't charge you a core charge on the engine or shipping crate up front, they give you 30 days to return the old engine and shipping crate.

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Last edited by Tuscany; 04-15-2013 at 09:16 PM.
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post #8 of 45 Old 04-15-2013, 09:28 PM
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Just don't get heads from Clearwater Cylinder Head.

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post #9 of 45 Old 04-15-2013, 10:15 PM
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I'm leaning on agreeing with onebadcoastie on the heads from clearwater, having hell with mine that were supposed to be brand new and all they are doing is costing me more money. Wish I knew about the long block from blackwater, that's the route I'd choose next go around, IMO that is.

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post #10 of 45 Old 04-15-2013, 10:31 PM
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Originally Posted by charlie.thomas View Post
I'm leaning on agreeing with onebadcoastie on the heads from clearwater, having hell with mine that were supposed to be brand new and all they are doing is costing me more money. Wish I knew about the long block from blackwater, that's the route I'd choose next go around, IMO that is.
What's going on with yours? I crack the head in the exhaust port on a brand new casting with 300 miles on them.

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