OS Engines 55HZ-H Hyper Ringed .55 Helicopter Engine
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Bore 0.91 in (23 mm) Crankshaft Threads UNF1/4-28 Crankshaft Type Threaded Cylinders Single Displacement 0.55 cu in (8.93 cc) Power Type Glow Product Height 3.6 in (90.9 mm) Product Length 3.0" (76.6mm) from backplate to front bearing Product Width 2.0 in (52 mm) at mounting tabs RPM Range 2,000 - 17,000 rpm Stroke 0.85 in (23.5 mm) Total Weight 14.40 oz (408 g) Customer ReviewsNo comments
