| Introduced
            in 1963, the O-520 is Teledyne Continental Motors' most
            important engine family.  The O-520 is a six-cylinder version
            of the O-346.  Power ratings range from 285 to 435
            hp (213 - 325 kW). | 
           | 
          
            
                | 6-cylinder, horizontally-opposed, air-cooled
                piston engine |  
                | Displacement: 520 cubic inches (8.5 liters) |  
                | Bore x stroke: 5.25 x 4.00 inches |  
             
           |