Salvador Fonzarelli Bruce Ramirez
5 WERE made. Proves how much you know. Two had 377ci prototype crossram chevrolet hemi small blocks. the other two had L88s, one eventually ending up with a ZL-1 427 for a Le Mans race. The two that had the 377 hemis had the engines stored by Duntov to avoid getting destroyed (one destroked and ending up in a one of one cortez silver 1969 Camaro Z/2

, and were replaced by L88s by privateer owners.
By the way, they won Nassau Speed Week against the Cobras and in other occasions so theres that. Even Caroll Shelby hinself admitted they were a better car by comparison. Funny thing is although Ford and Shelby did eventually throw in the 427 side oiler, they eventually went back to the 289 with a Shelby Cobra Daytona Coupe proving the 289 car was a better car for the track so there's no excuse about them getting beaten by the Grand Sports.
The way Shelby made those Cobras turned out to be too much torque out of the 427 for such a flimsy chassis and underdeveloped suspension, Ending up with a ridiculous handling car, similar to The Bill Thomas Cheetah however yes it was successful against the GS. You heard of three because the first two were held by Zora til AFTER he sold #003, #004, and #005 to privateer teams.
Chassis numbers 001 and 002 were converted to roadsters , which made them the lightest and fastest Grand Sports. #003, #004 and #005 remained coupes and were sold to privateers shortly after the program's cancelation. The remaining 377 hemi motor went back to chassis #002 with its current owner when it went under a full top down restoration. Oh and only one GS blew its motor and that was the Bahamas race.
It was an L88 motor with the early development rod issues. That was a 123 finish. Gotta love when the immature side Ford fans post on a Chevy video without knowing their stuff. And get rid of the caps, makes you look ridiculous.