Ford HSC engine

of torque of torque. This engine is denoted by an "S" in the VIN.

The early HSC engines were carbureted, with a 1-barrel Holley 6149 carburetor. Two-barrel Central Fuel Injection (CFI) was added in 1985. It was switched over to multi-port fuel injection in 1988 which raised horsepower to 95. Sequential fuel injection was added for 1992 increasing horsepower to 98, but the HSO variant was dropped (as the sportier versions of the Tempo/Topaz received the 3.0L Vulcan as standard equipment for 1992).

Applications:
* 1984-1994 Ford Tempo
* 1984-1994 Mercury Topaz

2.5

A 2.5 L (2496 cc, 152 CID) version appeared in 1986 with longer 3.58 in (90.9 mm) stroke and electronic fuel injection. The extra displacement was needed to provide a four cylinder engine option for fleet customers of the new Ford Taurus. This engine used the head and cam from the HSO engine and produced of torque.

Applications:
* 1986-1991 Ford Taurus
* 1986 Mercury Sable

References