Category
page 1Six-cylinder engines
Lycoming O-540
6-cylinder horizontally-opposed piston engine family by Lycoming
O-300
1947 6-cylinder horizontally-opposed piston engine family by Continental

Lycoming IO-580
1997 direct drive, six-cylinder airplane engine, including the AEIO-580 aerobatic engine
O-470 family
1950 6-cylinder horizontally-opposed piston engine family by Continental
Anzani 6-cylinder
1910s French piston aircraft engine
Curtiss R-600
aircraft engine
O-435
6-cylinder horizontally-opposed piston engine family by Lycoming