This high-reving 32-valve engine loves to rev and makes 750 hp up to 8,000 rpm! A look at the new SB$ DOHC LS-based engine designed by Mercury Racing and brought to the automotive market by the ...

In its history, General Motors has put some powerful LS engines under the hood of its most popular models. Here are the top ones and their specs.

built-in variable valve timing, and smarter engine management. It was, by almost every metric, a huge improvement over the LS. Look, you guys probably aren't going to like this, but the answer is ...