The Big Block V8 is a type of engine characterized by its larger displacement and size compared to small block V8 engines. Typically, these engines have a displacement of over 400 cubic inches, allowing for greater power and torque. They are commonly used in high-performance vehicles, trucks, and muscle cars, providing the necessary strength for heavy-duty applications. These engines often feature a taller deck height and larger cylinder bores, which contribute to their increased performance capabilities. Popular examples of Big Block V8 engines include the Chevrolet 454 and the Ford 460. Their robust design makes them ideal for racing and towing applications.