The Corvette Z06 is one of the most powerful production car ever offered by GM. The Corvette Z06 is powered by a 7.0 liter V-8, LS7 engine that develops 377 kW (505 hp) at 6,300 rpm.. General Motors announced the updates for the 2008 Corvette. The 2008 Corvette will receive a new, more powerful engine: a 6.2 liter LS3 small-block V-8 engine that develops 321 kW (436 hp) and 586 Nm of torque. The 2008 Corvette also gets improved driving characteristics and a crafted interior.