Blackburne: The 998cc V-Twin That Powered Britain’s Motorcycles — Without Building Them

In the 1920s, if you wanted to build a British motorcycle or cyclecar, you didn't need a foundry. You just needed a catalogue. The Blackburne 998cc V-Twin became the mechanical heartbeat of early British speed, powering everything from Morgan three-wheelers to Cotton racing machines, all without Blackburne ever building a complete motorcycle of their own. This is the story of the independent proprietary engine—a massive cast-iron power unit that democratised heavy manufacturing for independent builders. We explore how a quiet factory in Bookham, Surrey, poured the iron that built a booming network of Midlands garagistes, why the legendary 998cc V-Twin was trusted on muddy rural hills and the high-speed banking of Brooklands, and what ultimately caused this universal catalogue engine to disappear into the shadows of corporate consolidation and mass production. #vintagemotorcycles #Blackburne #britishengineering #motorcyclehistory