They pop up from time to time on E-bay. If I remember right they were basically an adapter plate to bolt the SBC to a flopped over transaxle and included a bigger, stronger input shaft for the trans. Motor mounts and a fibergl*** box/cover took over what was the back seat.
I built this one from scratch without a kit. Just sold it about a month ago. It went to Baltimore MD. All the build pics can be seen here http://s175.photobucket.com/albums/w127/mharbour/Corvair/#!cpZZ1QQtppZZ16
Had one in the early eighties. Crown. Clarks Corvair still sells the parts for the conversion or at least the did, last I checked. Not a good set-up for taller drivers. Perfect for a 5'10" or shorter.
In 1970's a local sports car club "ACALOM",that raced at Miami Hollywood Speedway Park had a guy that roadraced one as "A Mod",the fenders were bubbled for the much bigger tires as well
I recently sold this Art Silva kit for a friend. Puts a 215 Buick in the original engine bay. Had it on Omaha Craigslist for weeks. Guy from Arkansas bought it.
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