Ya know, I'm not totally sure the V6 won't make 300 HP....I don't know about that. The LS2 made the 400 hp and we know those are gone. There will have to be a V-8 that makes in between 300-350ish hp for those that don't want all that power (400-500hp) like my dad for instance. He said 400 is too much for him. He would be happy with something in the low 3's or high 2's. If not, he's going to have to get a V6.
Would make an interesting lineup no?
290-300+ HP V6
400+ HP Z28 V8
500+ HP SS V8
Ahh one can only hope....