Engine manufacturer location

[druiddonn]

I've looked all over on here and other websites and I simply can't find the
Spo code for the engine plant, I think my year has three options including Canada and Mexico?

 

[swathdiver]

I've looked all over on here and other websites and I simply can't find the
Spo code for the engine plant, I think my year has three options including Canada and Mexico?

Which year and engine?

 

[druiddonn]

Which year and engine?

04 Denali 6.0

 

[swathdiver]

04 Denali 6.0

Well, I'm speculating here but I think if your truck was built in Mexico chances are the motor came from the Silao plant and if built in the United States the motor came from the Romulus plant in Michigan.

My truck was built in Texas and the motor and transmission came from Michigan.

 

[druiddonn]

Janesville Assembly Plant is where my truck was built but I'm really just curious as to the engine codes so I can know which of the three of valable engine factories mine has