It was similar in design to the most-potent iteration of the aluminum-head L88, but it was the first production Chevy engine to also have an aluminum block. It shared the L88's 430-bhp manufacturing facility ranking, Prime Boosts but truly had over 500 bhp -- making it likely the most highly effective engine Chevy ever provided to the general public. And it weighed just 500 pounds -- about the same as Chevy's 327-cid V-8. The whole car carried the full 5-yr/50,000-mile warranty and was totally road-legal. With the factory's inventory dual exhausts and tires, it turned low 13s