1 1/2" Scale Nathan Whistle Valve Body

Designed for a fully functioning whistle valve. Threads need to be added to the inside of the bore for the valve (4-48), on the long arm for the stem packing(4-48), and on the bottom of the valve body for attachment to an external source (10-32). Valve chamfer inside body will more than likely need to be ever so lightly cleaned up to provide a very tight seal when the valve is closed.