Where can I see a Manual for a GM Vortec 6.0 Marine engine?

Where can I see a Manual for a GM Vortec 6.0 Marine engine?

i'm a gm master tech, what do ya need to know? i've got every gm mill book in frt. of me now on computer.tom e.

How about one for the 496Mag? I wan't to know how to replace the grommets on the heat exchanger.

At Parker on Monday I threw the serpentine belt.
Its a 6.0 GM Vortec 2006
How do I replace it?
Alternator loosen or what?
Also can you post pic of the belts routing?
And where is my impeller? When it goes I'ds ure like to know where it is.
Thank you in advance
Wake