Originally Posted by Crash

Heads/Cam LS2 or LS3 would be freaking sweat in the Z. Even with a mild cam and good heads, you're looking at 450+ to the wheels. Heads/Cam on the LS1 makes 420 to the wheels... The Z would be sick with that kind of power and torque. But I think the LS2 is going to throw the suspension off a bit on the Z. The motor's definitely longer and the weight is about the same.