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Lycoming O-540

The Engine  Specifications
Introduced in 1957, the O-540 is one of Textron-Lycoming's best-selling piston engines.  The O-540 is basically a six-cylinder version of the four-cylinder O-360.  The eight-cylinder O-720 rounds out this engine family.

Current versions include direct injection and many are turbocharged.

Horizontally opposed, 6 cylinder, piston engine
Displacement: 541 cubic inches
(8.9 liters)
Bore x stroke: 5.125 x 4.375 inches
 Models  Used by
AEIO-540: 260 hp (194 kW)
AEIO-540-D5D4: 260 hp (194 kw)
AEIO-540-L1B5: 300 hp (223 kW)
IGSO-540-B1A: 380 hp (283 kW)
IO-540-K1E5: 310 hp (231 kW)
O-540-A1A: 250 hp (186 kW)
O-540-B: 235 hp (175 kW)
O-540-B2B5: 235 hp (175 kW)
O-540-E4A5: 260 hp (195 kW)
IO-540W: 235 hp (175 kW)
VO-540-A1B: 323 hp (241 kW)
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 Related Pages
More about Lycoming

page updated 25 December 2007



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Kenneth W Shanaberger 2000 - 2010