Toyota SZ engine

The Toyota SZ engine family is a series of compact straight-four piston engines. They have an offset crankshaft, called the Desaxe, a thin-wall cast-iron block, a single-row chain-driven DOHC four-valve head and variable valve timing that allows Miller cycle operation at partial throttle. The 1.3 litre and 1.5 litre versions can be mounted longitudinally or transversely, and the larger versions can also sit canted nearly 90 degrees to the left for under-seat horizontal positioning. The family came out of development and manufacturing cooperation between Daihatsu and its part-owner Toyota, and in 1999 Daihatsu, with Toyota support, began making the 1SZ-FE exclusively for the Vitz, Yaris, Platz and Echo. Toyota Motor Manufacturing UK in Deeside builds SZ engines for the Yaris, and they are also built in Tianjin, China.