The Franklin 6A4-150-B3 is an air-cooled, horizontally-opposed piston engine designed for aviation applications, notably powering the Stinson 108 aircraft. Produced in 1963, this 6-cylinder engine offers a displacement of 300 cubic inches and a rated power of 150 horsepower. Its robust engineering and reliable performance have made it a trusted component in its intended use. The engine features a bore of 4.125 inches and a stroke of 3.75 inches, with a compression ratio of 6.5:1, and utilizes Avgas fuel.

This Parts Manual, written in English, provides comprehensive details for the Franklin 6A4-150-B3 engine. It covers essential information for identifying and sourcing components, aiding in the maintenance and repair of this powerplant. The manual includes specifications such as oil capacity of 8 quarts and an approximate engine weight of 295 lbs. Owners, mechanics, and technicians will find this document invaluable for ensuring the continued operational integrity and longevity of the engine.

The Franklin 6A4-150-B3 is an air-cooled, horizontally-opposed piston engine designed for aviation applications, notably powering the Stinson 108 aircraft. Produced in 1963, this 6-cylinder engine offers a displacement of 300 cubic inches and a rated power of 150 horsepower. Its robust engineering and reliable performance have made it a trusted component in its intended use. The engine features a bore of 4.125 inches and a stroke of 3.75 inches, with a compression ratio of 6.5:1, and utilizes Avgas fuel.

This Parts Manual, written in English, provides comprehensive details for the Franklin 6A4-150-B3 engine. It covers essential information for identifying and sourcing components, aiding in the maintenance and repair of this powerplant. The manual includes specifications such as oil capacity of 8 quarts and an approximate engine weight of 295 lbs. Owners, mechanics, and technicians will find this document invaluable for ensuring the continued operational integrity and longevity of the engine.