1933 OHC Models
In 1933 a two new overhead-camshaft AJS sports models were introduced, replacing those available before the Matchless merger. These were the Models 7 (350cc) and 10 (500cc) which shared the chain-driven camshaft of their predecessors but were otherwise were entirely new. The magneto was now located behind the cylinder and the engines had dry-sump lubrication and were fitted with a four-speed, foot-change gearbox. Versions included full racing types and an ISDT type named the Trophy. The Model 7 was built until 1939, but production of the Model 10 ceased in 1936.
1934 AJS 349cc Model 6 OHV Two-port
1934 AJS 498cc Model B8-34 OHV Big Port