Valves
Senior User
Joined: Nov 2009
Posts: 255
Likes: 1
What I have shows the oil cooler bundle upgraded for the turbo, 30 fins/in vs 24 fins/in for the NA.
[IMG]file:///C:/Users/Owner/AppData/Local/Temp/moz-screenshot-5.png[/IMG]
[IMG]file:///C:/Users/Owner/AppData/Local/Temp/moz-screenshot-3.png[/IMG]
[IMG]file:///C:/Users/Owner/AppData/Local/Temp/moz-screenshot-4.png[/IMG]
[IMG]file:///C:/Users/Owner/AppData/Local/Temp/moz-screenshot-5.png[/IMG]
[IMG]file:///C:/Users/Owner/AppData/Local/Temp/moz-screenshot-3.png[/IMG]
[IMG]file:///C:/Users/Owner/AppData/Local/Temp/moz-screenshot-4.png[/IMG]
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
Basic changes between the 7.3 NA IDI and 7.3 turbo.
NA has 1" wrist pins
Turbo has 1.3125" wrist pins
The NA oil cooler 24 fins per inch
Turbo oil cooler 30 fins per inch
Turbo pistons were anodized on the crown.
Valves already covered.
You could use all the turbo parts on a NA 7.3, if you could find the connecting rods.
In a 6.9 you can use the 7.3 turbo oil cooler and exhaust valves.
Also the 7.3 style rockers is another 6.9 upgrade.
After running my engine, the turbo wrist pins are just more rotating weight.
And if you watch the pyrometer, the anodized pistons are not needed, they would just add more cost.
Ford probably used them since pyrometers were not stock equipment, that helped protect the pistons with the mild boost pressures and fuel settings that the stock turbo engines used.
NA has 1" wrist pins
Turbo has 1.3125" wrist pins
The NA oil cooler 24 fins per inch
Turbo oil cooler 30 fins per inch
Turbo pistons were anodized on the crown.
Valves already covered.
You could use all the turbo parts on a NA 7.3, if you could find the connecting rods.
In a 6.9 you can use the 7.3 turbo oil cooler and exhaust valves.
Also the 7.3 style rockers is another 6.9 upgrade.
After running my engine, the turbo wrist pins are just more rotating weight.
And if you watch the pyrometer, the anodized pistons are not needed, they would just add more cost.
Ford probably used them since pyrometers were not stock equipment, that helped protect the pistons with the mild boost pressures and fuel settings that the stock turbo engines used.
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