I’m wanting to know the best way to make different game outfits for a character.
I want to be able to switch out between a couple different torsos and still have the same head model and rigging with animations still working.

I’m not sure if this is the best way or not but I detached a cylinder into two separate pieces.

Then I skinned and weight painted one half of the cylinder, weight painting the seam 50% to both bones and decreased that amount as I went father away from the seam. Then doing the same thing to the other half of the cylinder.

For example if this was the game character I would detach his arms, legs, and head from his torso
and do the same thing I did with the cylinder.

I’ve included a link to a video of the cylinder bending. 

http://www.youtube.com/watch?feature=player_profilepage&v=RBrVEEFn-rc

Thanks a lot for your time.

how you go about giving your character different clothing in game, will depend on the engine. the easiest way is to load in different model and swap out the other