Mazda B5 engineThe Mazda B5 engine is a 1. 5 liter inline four engine that was commonly used in a variety of Mazda vehicles. It fits primarily in the following models: Mazda 323 (also known as Familia or Proteg in some markets) late 1980s through the 1990s. Mazda Etude a South African variant of the 323. Mazda Demio (first generation) in select markets. Ford Laser rebadged versions of the Mazda 323. This engine is often found in compact sedans, hatchbacks, and some