Lycoming O-145 Aircraft Engine Specifications:

Number of Cylinders : 4 Opposed, air cooled
Displacement: 144.5 ci
Bore: 3.625 inches
Stroke: 3.5 inches
Compression Ratio: 6.5:1
Aspiraton: Stromberg Carburetor
Fuel: 73 Octane Avgas
Weight: 193 lbs
Length: inches
Diameter: inches
Output: 100hp
First Flight :
Airframes used on: Stinson 10A
Cost: $