Hey Dennis,
That is a good question..I did not build the engine in this car as it was an unfinished project started by the previous owner. To my knowledge,it is 100% oem as far as intake,carb,valve covers,etc...this is a straight PC'V . I know both my 65 cars had this cover on them. As far as color,I think there are closer matches out there. This is Detroit diesel duplicolor,but in reality,it is supposed to be a tad more blue-green. I think Bill Hirsch color is a little better from what I have seen. Dan