This came through the Forgotten Fibergl*** board today an it looks like interesting reading. From the Janurary 1951 Mechanix illustrated. http://www.forgottenfibergl***.com/?p=14515 Good writeup on the Ardun heads and conversion and the cost then.
And there is Bill Carash's scratch built (body) with a Caddy V-16 on the cover. That car still exists-was shown recently at Grand National (?).