The Saab B engine was created in 1972 when SAAB bought Scania. The design was based on the Triumph Slant-4, but with an increased engine displacement from 1.8 to 2.0 litres. This engine shared much with the original Ricardo design, including bore centers and bearings, but was substantially redesigned.
In 1977, Saab added a turbocharger, creating one of the earliest turbocharged engines in large production numbers.
In 1981, Saab began lightening and redesigning the engine. Creating the Saab H engine.
