more power
Senior User
Joined: Feb 2007
Posts: 265
Likes: 3
Thanks Dave, I understand where you are coming from. I was wondering what you thought about the idea of using a electric grid heater element in the mouth of the intake (Similar to the Cummins).
Congratulations on having and using a truck for 22 years that is awesome
Adam.
Congratulations on having and using a truck for 22 years that is awesome
Adam.
Freshman User
Joined: Jul 2007
Posts: 42
Likes: 0
From: Ohio
The valve metal changed, 7.3 valves will fit a 6.9 head.
7.3 heads will not fit a 6.9 block, head bolt size is different.
In my opinion, 7.3 engines are not rebuildable.
I had three reman 7.3 turbo engines die in 1.5 years and under 30,000 miles.
A 7.3 has to be sleeved when rebuilt, a 6.9 does not.
Sleeves are a bad joke, many engine shops will not touch a 7.3 because of the sleeve problems.
Basically Locktite is all that holds the sleeves in place.
If they move, a cracked block is the result.
7.3 heads will not fit a 6.9 block, head bolt size is different.
In my opinion, 7.3 engines are not rebuildable.
I had three reman 7.3 turbo engines die in 1.5 years and under 30,000 miles.
A 7.3 has to be sleeved when rebuilt, a 6.9 does not.
Sleeves are a bad joke, many engine shops will not touch a 7.3 because of the sleeve problems.
Basically Locktite is all that holds the sleeves in place.
If they move, a cracked block is the result.
Good thing I know of an 86 f250 with a hypermax turbo kit, upgraded injectors, no front tires, a junk clutch, bad fuel pump, no starter and borked wiring that sits back in a field. I know it runs, I made it run 
The way it sits, it will run for no one but me 
My brother almost bought it, put in a new starter, glow plugs, jumpered the hell out of it, ran it off of a funnel hooked into the elbow on the fuel filter. Screamed like a wounded cat. Guess I'll just have to buy it when it's rebuild time
