Engineering Explained gets inside Chevrolet’s Performance Build Center at the Corvette factory in Bowling Green, Kentucky, where the naturally aspirated LS7 and supercharged LT4 come together by hand. One engine chases power through raw displacement, the other through forced induction, and both end up in very different 2015 performance cars. See exactly what separates a 505-horsepower big-block philosophy from a 650-horsepower supercharged one.