E21 (1977 - 1983)

To determine which engine your E21 3-Series model has, please refer to the following:

 Model Years Engine
320i 1977 - 1983 1.8L M10
320/6 (320i 6 Cylinder) 1977 - 1982 2.3L M20
323i 1978 - 1983 2.3L M20