Nissan C engine

The Nissan C-series was an inline-four automobile engine produced by Nissan from 1957 to 1964. It displaced 1.0 L (988 cc) and produced 37 hp (28 kW) and 47.7 to 49 lb⋅ft (64.7 to 66.4 N⋅m). It was a pushrod engine and used single or dual-26 mm carburetors.

The C engine was derived from the 1.5 L (1,489 cc) Nissan 1H engine, which was itself a license-built version of the 1.5 BMC B-series engine that used a 73 mm (2.87 in) bore and 89 mm (3.50 in) stroke. To create the C engine, Nissan, advised by American engineer Donald Stone (formerly of Willys-Overland), reduced the stroke of the 1.5 engine from 89 to 59 mm (3.50 to 2.32 in). The resultant C1 engine was called the "Stone engine" in his honor.^[1][2] When the capacity was later increased to 1.2 L by an increase of stroke from 59 to 71 mm (2.32 to 2.80 in), it was called the Nissan E engine.^[3]

The Nissan C engine was replaced by the Nissan A engine in the 1967 Nissan Sunny B10. Its 1-litre A10 unit used the same 73 mm × 59 mm (2.87 in × 2.32 in) bore and stroke as the C engine.