difference 6.9 vs 7.3
Thread Starter
|
Senior User
Joined: Sep 2004
Posts: 268
Likes: 0
difference 6.9 vs 7.3
A friend just purchased a 1986 f-350, which I know had a 6.9 factory, however the previous owner said a new engine was installed, and that it was a 7.3. From what I saw all accessories from the 86 MY were used, fuel filter housing, etc. There are no tags anywhere on the engine. Is there any way to visually tell a 6.9 from a 7.3?
Thanks
Thanks
Posting Guru
Joined: Sep 2002
Posts: 1,897
Likes: 0
From: Northeastern Pa - USA
yepper, the 7.3 has webbs along the lower edge of the head for strength where the 6.9 heads were flat. The head bolts in the 7.3 were larger too, but you cant tell them apart til you have one of each side by side.
