Picked up the truck for 15k had zero mods and wasn’t studded with 260,000kms only had a botched EGR delete. Got new Tunes from blessed, clean up the sludge off the engine. Post a video of her running later 
damage on the heads we suspect is when the previous owner ran gas in her, ordered brand new ones and had them o-ringed
@Blaire
Forgot to add the pic but the heads had some damage near the valves. Also did 6.4l banjo bolt upgrade. Blue fuel spring. Just need to swap the fan clutch to the 7.3l and add a better trans cooler later on.
I hope those are old stock, or non oem stand pipes and dummy plugs. We switched suppliers 2 and a half years ago and the o rings on the new ones are trash
Oli said:
I hope those are old stock, or non oem stand pipes and dummy plugs. We switched suppliers 2 and a half years ago and the o rings on the new ones are trash
Can confirm they are non OEM, and can confirm the OEM ones are trash now
I’d ditch the STC fitting for the updated one-piece version it’s hard to tell from the picture.
Cameron said:
I’d ditch the STC fitting for the updated one-piece version it’s hard to tell from the picture.
Can confirm it is the updated one-piece
Cameron said:
I’d ditch the STC fitting for the updated one-piece version it’s hard to tell from the picture.
Can confirm it is the updated one-piece
Yea i couldn’t remember the part number. Don’t know why someone would think plastic would work at that spot I mean really…
@Cameron
Well some one at ford thought plastic oil pans were a good idea 
if you are having the heads machined look into getting them o-ringed
Uma said:
if you are having the heads machined look into getting them o-ringed
Way ahead of ya, had to get new heads so had them o-ringed and fully checked. Can never be to careful
Why do people paint Navistar engines Ford blue?
Clancy said:
Why do people paint Navistar engines Ford blue?
It’s in honor of the old school Ford.
Clancy said:
Why do people paint Navistar engines Ford blue?
I went with that color as it was a close match to the Harley blue, it’s just enamel rattle can blue.
Double check your heads and make sure you don’t have any cracks in the valve seats.
Vesper said:
Double check your heads and make sure you don’t have any cracks in the valve seats.
Bought brand new ones and had a machine shop check em and bring them
This is a 6.3(7)L right? Or whatever. I think it’s cool
My guy, clean the top end before you strip them down! All that shit falling in the engine, and your reservoir sitting there wide open, that crap will wipe out an IPR real quick when you start it.
Time for a Cummins swap
Shiloh said:
Time for a Cummins swap
Hard no