Ive been looking at getting a ls2 engine here are teh specs
402 CID displacement
GM LS2 aluminum 6.0-liter block (includes block plugs)
4.000" Eagle 4340 forged steel crankshaft, balanced to rotating assembly
4.000" Ross 2618 forged alloy pistons with -28.50cc dish (includes new rings and full-float pins)
9:1 compression ratio (nominal; ultimate compression ratio will depend upon heads and gaskets used)
6.125" Eagle H-beam rods
Includes new, factory-installed cam, rod and main bearings.
Comes with everything required to retrofit into an LS1-equipped car or truck
Designed for naturally aspirated use.
Assembled to OEM tolerances and specifications.
Capable of supporting over 700 hp.
Oil pump, camshaft, pans, and plates not included.
ZL402 badges (pair).

could i bore it out anymore or would it not be good and what about a stoker kit and what else would i need for a complete engine?

I would go with the iron 6.0 block. It's only 90 lbs more and can be bored out where as the alum can only be honed and even thats can be pushing it in some cases. Plus the iron blocks are tons stronger.

well you dont really even gain much from boring over. the main point is to true up the cylinder walls on an old, tired engine.