Looks like it to me. But from the work he did on the LS1 swap, it also looks like you could bolt the S-Series brakes on there too. I'd still go with the S-Series setup on the back, unless a)you were going with LS brakes in the front, or b)the LS rear brakes are the same diameter.
dwkohout's 12-bolt rear + S10 rear discs:
Pics from the LS1 brake swap:
dwkohout's 12-bolt rear + S10 rear discs:
Pics from the LS1 brake swap:
