Who says you can't stuff a 572 into a 4th Gen??? Check out the ZL1 that Scott brought along w/ him to the Dallas show. This was quite an experience to hear this thing start up...my God it was loud!!! Who knows what they do w/ the 5th Gen...after all, you do know that the vehicle is 5 1/2 inches wider than any other Camaro ever made. Usually, that means more room between the wheel wells. Easier to drop in some hefty big blocks!
572 FTW! Just move the firewall back some and give it some room for head covers, maybe cut wheel wells, and youre gtg.