The popularity of various engine designs typically fades over time as technological advances provide more power, better fuel economy, or both. Flathead designs gave way to overhead valves, and inline ...

General Motors Corp. recently announced that it is launching a new inline 5-cyl. engine, which will combine the power of a 6-cyl. with the fuel economy of a 4-cyl., for its redesigned 2004 Chevrolet ...