Corvette News June/July 1969 article states that Yenko/Grossman won GT class (beating the Owens-Corning Corvettes) finishing 10th overall in a 1969 Camaro with a Bill Hartley built aluminum 427 ZL1 Corvette engine. There is a B&W photo of the car showing it in a dark color wearing number "5". I believe it had the Yenko Dealer sponsorship on the side but there is no side view picture in the article. Winning GT class in a 12hr endurance race is quite an accomplishment for anybody and is even more impressive for a relatively small Chevy dealership without big sponsorship. This ZL1 Yenko race car may have been shown in a movie for just a second. I was watching a James Garner made movie/documentury on Speedvision with a title something like "James Garner Makes the Racing Scene". The movie shows Garner racing at Sebring and other tracks and there was a clip where a red Camaro with what looked like "Yenko" on the side, drove by the Garner car. I unfortunately did not tape the movie so I thought it may have been an hallucination. The Garner Lola-Chevy is shown below the Camaro. Here is the article.
http://albums.photopoint.com/j/View?...131&p=40303280