Brand new Os 32 engine, ex model shop stock Rare opportunity to get a new engine.. The O.S. Engines MAX-32SX-H (Part No. 12956) is a powerful, 2-stroke glow (nitro) engine designed specifically for 30-class RC model helicopters.Key Specifications:Displacement: 5.23 cm³ (0.319 cu. in.)Bore: 19.5 mmStroke: 17.5 mmPower Output: 1.2 PS at 18,000 RPM
