Even though the valve cover on this engine is black, it is referred to as "Grey Top" due to the grey intake plenum, to differentiate it from the fifth-generation Dual-VVTi "Black Top" in the Altezza.
The valve cover on this engine is black. It is referred to as "Grey Top" due to the grey intake plenum. This was to differentiate it from the fifth-generation Dual-VVTi "Black Top" in the Altezza.