That might be doable if there was more room between the engine and fuel tank location for the V configuration of the motor. Which subframe would you use, since the Cobalt/G5 frame is very tight for the I4 engine and trans. Granted, the Fiero guys are doing this, but with some pretty extensive modifications. I'm guessing some changes to more than the motor/trans mounts would be required. But why drop in a V8, with all of the extra weight penalty, when an Ecotec engine can be boosted into the 500hp (or more) range without the extra pork? Other than having a unique Goblin, not sure of the benefits? I am not trying to discount the idea and if someone does actually attempt to do this, it would a great build to follow. It's all good.So will these developments allow the use of an LS4 V8??? Just kidding... or am I????