Ahh mkay, i see, i thought you were looking at blocks, my bad...so yeah the LS9 has all forged internals, then again the LS7 does too, so idk, id much rather see the LS9 in the Z/28 than the LS7, but im still not a fan of the LSA, so i say either LS7 or go balls-out with the LS9
And i love the people posting "i JUST got my car supercharged!" haha, well i mean its lame but still, you have a supercharged Camaro! Its badass haha, yeah the price will depreciate from the modifications but thats expected from anything you modify, or if you find the right buyer you could make money
But i would still go Z/28 even at that, i mean its true if you modify the Z it will depreciate, but how many people modify GT500s? It just doesnt happen, you're already on top of the mountain there's no reason for improvement, lol