Hellcat has pushed the limits of American muscle, producing monstrous powerplants with horsepower numbers once thought unthinkable. Here are the coolest ones.

How can heavy and cumbersome muscle cars stack up to the Porsche 911? The Porsche 911 is typically known for being a ...

LS3 crate engines can cost between $7,000 to $13,000, depending on configuration. By default, they make 430 hp and 425 lb-ft of torque.