McCollugh supercharger identification

[brngarage]

Does the number VS57S indicate that the supercharger in question was originally on a Studebaker?

Thanks
Howard

[JDP]

From a old Studebaker news group post:


" VS 57A indicates an early 50's version. "B" was the Kaiser version. "C" was the universal contemporary of the Golden Hawks; which were "S" type.
An "A" came with a 12 spring pressure assembly; compared to the 14 spring "S". The ball drive races weren't pinned in place, on the "A" or "B" models. They were backed by friction discs; and expected to turn in the housing and pressure assembly, to keep the ball drive from being overloaded.


JDP/Maryland
"I'm a great believer in luck and I find the harder I work, the more I have of it."
Thomas Jefferson

[brngarage]

Thanks very much for such a quick answer! Howard