1.6 L (1,597 cc) B6 - (78x83.6 mm) - This was a bored-out version of the B3. The 8-valve SOHC B6 was found in the 1985-1989 Mazda 323, the 1988-1990 Mercury Tracer, and the 1990-1994 Mazda 323, and the 1992 Mazda mx-3. The B6 produced 82 hp (61 kW).

In Japan and Australia a fuel-injected version called the B6F was available.