Who says the high performance version is going to be the SS? 
(That topic is for another thread.)
If history is a lesson (as with the L98, LT1 and LS1 engines) then the LS3 should find its way into Camaro, though it may be rated with less horsepower.
I would be a fan of that choice, the LS3 is a nice engine.
However there is also the L76, which is a 6.0L AFM GenIV, 362hp in the Pontiac G8 GT, which is also a Zeta car.
(That topic is for another thread.)
If history is a lesson (as with the L98, LT1 and LS1 engines) then the LS3 should find its way into Camaro, though it may be rated with less horsepower.
I would be a fan of that choice, the LS3 is a nice engine.
However there is also the L76, which is a 6.0L AFM GenIV, 362hp in the Pontiac G8 GT, which is also a Zeta car.