at the upcoming MCACN will be Curt Simlick's fully functional cut-away of a 1965 Corvette chassis, complete with a 327cid fuelie, and a 396cid big-block.

GM had two identical displays for periodic maintenance. At the conclusion of the fair in ’65, the displays were sent to Detroit for storage; however, in ’67 one set went to a GM Motorama show in South Africa, following the show, it was donated to an engineering college.  https://justacarguy.blogspot.com/2015/06/maybe-most-remarkable-thing-youll-see.html 

In the ‘90s this long lost and forgotten piece of history was discovered and returned to Orlando, FL. The chassis (but not the engine) was displayed at an NCRS Disney show in January 2000 where it was sold to Al Wiseman. The engine (apart and in need of restoration) was also included in the deal. Wiseman sold his Corvette display in 2007, for $715,000, but retained the 396 big-block until he sold it to Kayser, who’s father helped display the cut-away in ’65 as a spokesman for the new big-block.

GM donated the other (“spare”) Corvette cut-away to Ferris State University in Michigan, where Curt Simlik discovered and acquired it (minus the hovering Corvette body).

https://www.hotrod.com/articles/1965-cut-away-corvette-and-engine-from-ny-worlds-fair-2015-corvettes-at-carlisle/