🏷️ Basic Information Identification Make: Franklin Model: 6A4-150-B3 Associated Aircraft Model: Stinson 108 Year: 1963 Generation: N/A 📋 Manual Details Document Info Manual Type: Parts Manual Language: English Page Count: 26 Format: PDF Publication Date: 1963 ⚙️ Engine Specifications Engine Configuration Engine Type: Air-cooled, horizontally-opposed piston engine Cylinders: 6 Displacement: 300 cu in Engine Performance Rated Power: 150 HP Bore: 4.125 inches Stroke: 3.75 inches Compression Ratio: 6.5:1 Fuel System Fuel Type: Avgas Lubrication System Oil Capacity: 8 quarts 🔧 Transmission Transmission Type Type: N/A (Engine only) Gears: N/A 📐 Dimensions Physical Dimensions Length: N/A Width: N/A Height: N/A Weight: Approx. 295 lbs 🔧 Maintenance Service Schedule Service Interval: Refer to Manual