Going to replace my head gaskets and upper gaskets ( not sure wat gaskets are all in the kit my friend ordered for me) how long do you think this will take?

 

Depends on how easy it is to get the y pipe disconnected and the exhaust manifold bolts loose. I would plan on it being at least a 2 dayer, maybe longer if you plan on having the heads checked and surfaced at a machine shop. Hopefully your friend ordered the gasket kit that has everything you need to do the head gasket job, including the UIM gasket, LIM gasket, orings for injectors and thermo gasket. Oh and you will need a box of bandaids!