I thought some may like to see this hood. I bought this hood from Bill Grumpy Jenkins and picked it up at his shop in PA. Grumpy said he got it from Chevy Engineering in MI. They sent it to him in late 1969 along with a truck load of engine parts Chevy was sending him for the 1970 Pro Stock season. Grumpy wrote me a documentation letter (on Jenkins Competition letterhead) stating it is a "1970 Camaro cowl induction ZL2 all steel prototype hood designed to accommodate the LS7 and ZL2 high rise manifold engines. The project was canceled before going into production."
Grumpy said it was the only one that was left from the project. The black part of the hood is a steel insert that is formed with a 1/2 seem on the bottom and is spot welded to a 1/2 seem formed into the hood skin and another in the scoop part. The top of the scoop looks like its from a steel 69 cowl induction hood. This thing is a masterpiece of sheetmetal forming and is made up of about 6 pieces of sheetmetal welded together. I'm not sure what I am going to do with it but thought it was cool to have a part from Chevy Prototype Engineering. Grumpy said he had it on a show car he used for promotional advertising. Yenko did release some press info about a 1970 LS7 Yenko Camaro but never built it. This hood may have been a prototype for a COPO/Yenko 1970 LS7 Camaro but unfortunately the program got scrapped. Grumpy said the ZL2 was going to be a 454cu in aluminum engine similar to the ZL1.