Engine Nissan RB20

The first RB20 engines were installed on the Nissan Skyline R31. Early double overhead camshaft engines are referred to as “Red Top” because they have red caps. Later versions used the ECCS engine management system. There were different versions of 2-liter RB20 engines: RB20E, RB20ET, RB20DE, RB20DE NEO, RB20DET, RB20P, RB20DET-R.