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O.S. .91 HZ-R 3D Speed Competition 3D Helicopter Engine w/61G Carburetor
$233.00
This is the O.S. .91 HZ-R 3D Speed Competition 3D Helicopter Engine, with 61G carburetor. O.S. has taken high-performance, high-speed helicopter engines to the next stage of evolution with the introduction of the 91HZ-R 3D ..
