Yes, basically anything required on per engine regardless of options was engine color. Such as the both exhaust manifolds,fuel pump, negative battery cable, spark plug wire shields etc.

paint coverage will vary greatly with each individual painter that was responsible on the line. I've seen fuel pumps completely covered to some just barely a misting of color. Those with just a misting of color will usually also be very lighly covered towards the lower parts of said engine, such as the bottom of the oil pan will be bare steel and the top edges of the block core plugs will also be bare steel.