I have noticed that there seem to be a lot of questions when it comes to the engine color. Even this document is noted that it is an assumption that they were green. I have spoken to others that say it depended on the plant and time of build. I also read that replacement blocks were black. (any idea on that) ? I did have another Chevrolet source say they were grey. It will probably remain Blue for now. I have a leaky valve cover and side plate gasket, so they get attention before painting. Thanks for the great links to the pdf and web site. Lots of cool stuff there for sure.
Steve
