7.3to6.9 swap

[pauls painting]

will the sepentine belt system on my 7.3 fit on 6.9? what if any changes do i need to make? thanks for any info.

 

[h2odrx]

yes if one serpentine belt breaks you better be able to fix it, but if one of th three or four on my truck breaks i might be able to limp home?

 

[mr_josh]

On the other hand, if you only have one belt, you only have to carry one spare.

 

[Mr_Roboto]

And a serp belt is much easier to change than V belts.

Check the rotation of the water pump, many serp belt water pumps are reverse rotation which means the impellers turn the opposite direction.

 

[Dieselguy123]

from what I remember the water pumps are the same part # whether it is a 94 7.3 turbo or and 83 6.9, there all the same- Brad-

 

[subway]

on a side note i believe that the serp belts are much more efficient cutting down on the parasitic drag that the v-belts have when they rub going in and out of the valley of the pulley.

 

[towcat]

Anything on the IDI externally of the long block will bolt on. 6.9/7.3 Ford or IH S-series. these motors were designed with that flexibility in mind.