Cracked 6.0L heads

[Perf Diesel Shop Owner]

Hey guys. Im doing another 6.0L head gasket/stud install, but this one has a twist. Both heads are cracked between the glow plug port and intake valve on atleast 1 cylinder each. Im told from the machine shop after magnafluxing. I have to go down and pick them up yet, so I haven't seen them myself. Just wondering how many of you all have run across this before and what was the least expensive means of obtaining replacement heads? It was too late to get prices on OEM units from Ford, but I have been told this is the best resource? The engine is an 04. Thanks in advance.

[npccpartsman]

It's fairly common unfortunately. You'll either have to get them used/remaned, new from Ford or new from International. This is the best price I've found new: Tousley Ford Parts Depot

[cubsr9]

i have 2 6.0 power stroke heads im selling. i did a motor job for a friend and i have the old motor with most everything still good. you can call or pm me my # is 903 431 0570.

[Perf Diesel Shop Owner]

Thanks for your help guys.

[Perf Diesel Shop Owner]

And the drama continues....I purchased new heads from International yesterday and opened the box, all looks fine. I installed the studs, gaskets, heads and rocker assembly ....and then....here we go.....the rocker arm carrier assembly fasteners do not have any thread bosses to thread into in the new heads. As per TSI #07-12-04, the bulletin states discarding 6 of the previously used 8 bolts! Is this for real??? Anybody see this before? I have the pics, but its such a PITA to load them. If needed I can provide. Thanks guys.

[Stoker0560]

Although its too late now....my heads were cracked just the same.. the machinist told me it was normal, he said i could buy new heads but they will crack just the same, he recommended put them back on 40k on them since stud job and everythings fine.. i guess if it not too late, send the new ones back.. good luck!

[Perf Diesel Shop Owner]

Originally Posted by Stoker0560

Although its too late now....my heads were cracked just the same.. the machinist told me it was normal, he said i could buy new heads but they will crack just the same, he recommended put them back on 40k on them since stud job and everythings fine.. i guess if it not too late, send the new ones back.. good luck!

Thanks for your response. I actually installed those heads last night and should be lowering the cab today or tomorrow depending on the amount of customers coming to the shop today. Im still concernedwith the new design and the omission of the thread bosses. I was told by the "parts" guy at Navistar, the new casting design is supposed to be stronger than the old design??? IDK....I guess if anyone should know, it should be the dealer right? The other trucks I did, did not have cracked heads. Even the 2005 with the overheat of 300+ degrees. I guess we shall see.

[craftkr]

Originally Posted by Stoker0560

Although its too late now....my heads were cracked just the same.. the machinist told me it was normal, he said i could buy new heads but they will crack just the same, he recommended put them back on 40k on them since stud job and everythings fine.. i guess if it not too late, send the new ones back.. good luck!

So you put the cracked heads back on

I've got diesel in my coolant so I got a cracked head. Did he repair the head, or what was done?

[Stoker0560]

Originally Posted by craftkr

So you put the cracked heads back on

I've got diesel in my coolant so I got a cracked head. Did he repair the head, or what was done?

Yup, no repairs, nothing you can do... there tiny cracks from the injector hole to the glow plug hole, or maybe it was glow plug hole to the nearest valve, i dont remeber, it doesnt pretrude anything and really doesnt cause any problems. it can only be seen under magnafluxing.. never had any problems,

Ive only heard of one other 6.0 getting diesel in the coolant and it happens to be my buddies truck, he just had injectors put in and a week later his coolant bottle was over flowing with diesel. i had heard it was a cracked injector sleeve.. or "injector cup" i have not verified this.. what was your cause??

[craftkr]

Originally Posted by Stoker0560

Yup, no repairs, nothing you can do... there tiny cracks from the injector hole to the glow plug hole, or maybe it was glow plug hole to the nearest valve, i dont remeber, it doesnt pretrude anything and really doesnt cause any problems. it can only be seen under magnafluxing.. never had any problems,

Ive only heard of one other 6.0 getting diesel in the coolant and it happens to be my buddies truck, he just had injectors put in and a week later his coolant bottle was over flowing with diesel. i had heard it was a cracked injector sleeve.. or "injector cup" i have not verified this.. what was your cause??

On the 7.3's it was common for the injector cup to go bad and cause fuel in the coolant. However I've been looking into it and it's not the case on the 6.0. There is an o ring that would hold the coolant and or fuel out on the 6.0 if the cup failed. However the coolant jacket is in the right place should there be a crack. Funny thing is I have been driving the truck and it runs fine, just got fuel in my coolant. And now that I've found it I wonder how long it's been like that....