Continental O-520
FAMILY OF FLAT-SIX PISTON AIRCRAFT ENGINES
Continental GTSIO-520; Continental IO-520; Continental TSIO-520-NB; Continental IO-520C; Continental TSIO-520B; Continental TSIO-520-VB; Rolls-Royce/Continental IO-520; Rolls-Royce/Continental IO-520D; Rolls-Royce/Continental IO-520-D; Continental IO-520-F
The Continental O-520 is a six-cylinder, horizontally opposed aircraft engine produced by Teledyne Continental Motors. First run in 1963 as a development of the IO-346, it has been produced in versions incorporating fuel injection (IO-520), turbo-charging (TSIO-520), and gearing (GTSIO-520).