Nissan A Engine
The Nissan A series of internal combustion gasoline engines have been used in Datsun, Nissan and Premier brand vehicles. Displacements of this four-stroke engine family ranged from 1.0-liter to 1.5-liter and have been produced from 1967 to the present. It is a small-displacement four-cylinder straight engine. It uses a lightweight cast iron block and an aluminum cylinder head, with overhead valves actuated by pushrods.
The Nissan A engine design is a refined, quiet and durable gasoline engine. It appears to be a modern replacement of the earlier iron-headed Nissan E engine and is of similar dimensions. The 1960s E series was an all-new design inspired of Nissan's improvements to the BMC A-Series engine design in the 1950s (Nissan was a licensee of Austin Motor Company technology).
1974 and newer A-series engines have different block castings, with relocated motor mount bosses.
Read more about Nissan A Engine: A10: The First A-series Engine, A12 (1200): Further Refinements, A12A, A13 (1974): The First Tall-deck A Engine, A14: Engine, A13 (1979-1982) - Short-deck Engine, A15 - Stroker Motor
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“The machine unmakes the man. Now that the machine is perfect, the engineer is nobody. Every new step in improving the engine restricts one more act of the engineer,—unteaches him.”
—Ralph Waldo Emerson (1803–1882)