Wow - learn something new every day. I have only ever heard (or seen) of the VS57's being installed in Studebaker's.
$200? for 3 blowers? talk about inflation! Can't imagine what those things are worth today! 
Stalled out on my own VS57 build. The belt I need had to be ordered. No one in town had it, even the mom and pop shops and the Big Warehouse parts places like CarQuest. Went to their own distribution center for crying out loud?!?
Paul:::: you getting ready to buy a blower?
Daniel JessupLancaster, California
aka "The Hot Rod Reverend" 
check out the 1955 Ford Fairlane build at www.hotrodreverend.com