I've often wondered about the color of my engine being wrong. I've never pulled it to actually inspect it all over, but since I bought it in 91, the engine has been a non-metallic blue. The only part I can detect had the metallic on it was the 68 4bbl intake manifold that was installed at some point after it was no longer new. I've since gone over the valve covers and parts of the heads I could reach with the 'proper' metallic blue, but now wonder whether the non-metallic may have come from the factory. I find it strange that someone would have gone to the trouble to repaint the engine block and heads, but not the intake manifold when they installed it.