Quote Originally Posted by teh_mugen18 View Post
could it just be the fact that i didnt replace the LS oil pump with a gsr one
Thats exactly why it failed. Yours is certainly not the first to fail because of it.

did you get the crank balanced? if not then that was a bad mistake
That doesnt really make sense seeing as how the bottom end is stock. Its clear from the type of failure that the engine was starved for oil, not revving too high.