Engine Data

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540 Series Engines

EngineCompression RatioHPRPMTBOHeight(In)Width(In)Length(Ln)Dry WT (Lbs)Remarks
O-540-A8.50:12502,5752,00024.5633.3737.22-38.42405-406Dynafocal Mounts Type 1
O-540-E7.20:12352,5752,00024.5633.3737.22-39.34395-397Dynafocal Mounts Type 1
O-540-E8.50:12602,7002,00024.5633.3737.22-39.34397-399Dynafocal Mounts Type 1
O-540-G8.50:12602,7002,00024.5633.3739.34415Dynafocal Mounts Type 1
O-540-J8.50:12352,4002,00020.43-24.5633.3738.93387-388Dynafocal Mounts Type 1
O-540-L8.50:12352,4002,00020.4333.3738.93387Dynafocal Mounts
IO-540-A8.70:12902,5751,40019.634.2538.62443Dynafocal Mounts Type 1
IO-540-C8.50:12502,5752,00024.4633.3737.22-38.42402-404Dynafocal Mounts Type 1
IO-540-D8.50:12602,7002,00024.4633.3738.42-39.34410-412Dynafocal Mounts Type 1
IO-540-K8.70:13002,7002,00019.60-20.8634.2538.62-39.34466-474Dynafocal Mounts Type 1
IO-540-S8.70:13002,7001,80019.634.2539.34475Dynafocal Mounts
IO-540-V8.50:12602,7002,00019.3533.3738.93414-420Dynafocal Mounts
IO-540-AA7.30:12702,7001,80019.634.2539.24479Dynafocal Mounts
IO-540-T4B58.50:12602,7002,00021.533.3738.93418Dynafocal Mounts
IO-540-W1A58.50:12352,4002,00019.3533.3738.93400Dynafocal Mounts
TIO-540-A7.30:13102,5751,80022.7134.2551.34540Dynafocal Mounts
TIO-540-C7.20:12502,5752,00030.3333.3740.38483Dynafocal Mounts Type 1
L/TIO-540-F7.30:13252,5751,80022.4234.2551.34542Dynafocal Mounts
L/TIO-540-J7.30:13502,5751,80022.5634.2551.5548Dynafocal Mounts
TIO-540-S7.30:13002,7001,80026.2836.0239.56533Dynafocal Mounts
L/TIO-540-U7.30:13502,5001,80022.6234.2551.93580Dynafocal Mounts
L/TIO-540-W7.30:13502,6002,00023.3334.854.19567Dynafocal Mounts
TIO-540-AB1AD8.00:12502,5752,00030.0633.3739.36474Dynafocal Mounts
TIO-540-AF1B8.00:12702,5752,00028.6233.3840.24493Dynafocal Mounts
TIO-540-AA1AD8.00:12702,5752,00021.4833.3748.57466Dynafocal Mounts
TIO-540-AE2A7.30:13502,5002,00027.7546.5242.02595Dynafocal Mounts

Engine Labeling Legend:        TIO (1) - 540 (2)
1 Prefixes:
2 Cylinder Cubic Inch Displacement: Engine Mount Configurations: 
AE-Aerobatic (wet sump) 
H-Horizontal Helicopter 
I-Fuel Injected 
L-Left Hand Rotation Crankshaft 
O-Opposed Cylinders 
T-Turbocharged 
Number of Cylinders:


8


Cubic Inch Displacement:
235, 320. 360
540, 580
720


Conical - Straight mounts parallel to crankshaft. 
Dynafocal - Mounts set at a specified angle to the
crankshaft with Type 1 (30") and Type 2 (18"). 
Bed - Bed mounting available on select engine models. 


This current production model data is provided for engine selection, and is subject to change without notice.  The Lycoming Sales Department should be contacted prior to starting detailed installation layouts. Engine weights may vary according to specific engine model configuration.