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 ...

Bore and Stroke: 127 mm (5 in.) x 102 mm (4 in.) Once the largest independent manufacturer of automotive engines, Detroit’s Continental Motors Corporation purchased the rights to a single-sleeve valve ...

Converting the ignition of a fuel-air mixture into usable mechanical energy lies at the core of a dizzying number of internal combustion engines developed over the course of more than century.