Bore and Stroke: 146 mm (5.75 in.) x 165 mm (6.5 in.) In 1926 Bristol began studies to integrate the Burt-McCollum sleeve valve concept into selected new engine designs. The sleeve valve, which moved ...
A mission to restore four classic World War Two-vintage Bristol Hercules engines to running order is being given strong support by Shrewsbury firm Morris Lubricants. The firm is providing classic oil ...