Mazda B Engine - B8

The 1.8 L (1,839 cc) B8 (sometimes "BP") is not just a bored and stroked B6. Rather, it uses a new block with widened cylinder spacing. The bore is 83 mm and the stroke is 85 mm. This SOHC engine was used in various Australian Mazda 323s, the American 1990-1994 Mazda Protege, and in Canadian variants of the 323 hatchback. It came with four valves per cylinder (B8-ME or BP-ME). It features hydraulic lash adjusters, a belt-driven cam, an 8.9:1 compression ratio, a 6,000 rpm redline, and multi-port fuel injection. Power outputs are:

• 103 hp (77 kW), 111 lb-ft (U.S./Canadian market)
• 106 PS (78 kW) at 5,300 rpm, 151 N·m (111 lb·ft) at 4,000 rpm (European markets)