Ford HSC engine

The Ford HSC engine is a four-cylinder gasoline engine that Ford sold from 1984 until 1994, with HSC standing for High Swirl Combustion. It came in 2.3 and 2.5 litre sizes and was used in only two model lines, the Ford Tempo with its Mercury Topaz twin and the Ford Taurus with the Mercury Sable. Ford created it when all production of its 2.3 litre Lima four was committed elsewhere, reusing tooling at the Lima plant that had built the Thriftpower six, with a new assembly line at Chihuahua in Mexico. The engine has a cast iron block and head, a cam in block with pushrods and a reverse flow head with the spark plug in the centre of the combustion chamber for a fast burn. The 2.3 litre debuted in 1984 with a carburettor and later gained fuel injection, a 2.5 litre followed in 1986, and a High Specific Output version made 100 hp from 1985 to 1992.