Ford SHO V6 engine

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Ford SHO V6
SHO 3.0 L V6 in a 1991 Taurus SHO
Manufacturer Ford Motor Company
Production 19891995
Predecessor ?
Successor Ford SHO V8
Ford Duratec V6 engine
Class DOHC 60° 24-valve V6
Platform Ford Taurus SHO
Engine 3.0 L (2986 cc/182 in³)
3.2 L (3191 cc/195 in³)
Similar GM LQ1 engine
GM 54-Degree V6 engine
Mitsubishi 6A engine
Nissan VG engine
Toyota MZ engine
Toyota VZ engine

In the early 1990s, Ford Motor Company worked with Yamaha Motor Corporation to develop a compact 60° DOHC V6 engine for transverse application. This engine intended was to power a mid-engine sports car, but that project (known internally as GN34) was cancelled. Instead, Ford decided to place the engine, dubbed the Super High Output (or SHO) into the front wheel drive Ford Taurus sedan.

The SHO engines share a common bell housing pattern with the following Ford engines: the 2.3/2.5 L FWD HSC I4, the 3.0L FWD/RWD Vulcan V6, and the 3.8 FWD Canadian Essex V6.

Due to the engine's unusual and aesthetically pleasing appearance as well as its compatibility with common Ford RWD transmissions, such as the AOD and T-5, it is sometimes transplanted into other vehicles. The distinctive intake manifold is bilaterally symmetrical, so it can be rotated 180 degrees to ease the engine's transition from transverse to longitudinal mounting.


Contents

[edit] 3.0 L

The SHO V6 was a high-tech design at its debut in 1989. Displacing 3.0L (2986 cc/182 in³), it was an iron block, aluminum head 24-valve DOHC engine with an innovative variable length intake manifold. Its oversquare design, which sported an 89 mm bore and 80 mm stroke, gave the high-revving engine an output of 220 bhp (164 kW) @ 6200 rpm and 200 ft·lbf of torque (271 Nm) @ 4800 rpm at the flywheel. Redline was 7000 rpm, and fuel cut-off occurred at 7300 rpm. This engine was available with the Ford MTX-IV 5 speed manual transmission only.

[edit] 3.2 L

From 1993 to 1995, the SHO engine was sold in two displacements: the 3.0L was sold mated to the MTX-IV manual transmission, and a new 3.2L engine (3191 cc/195 in³) was sold mated to the Ford AX4N automatic transmission. The new 3.2L engine, while retaining the same 80 mm stroke of its 3.0L brother, sported a larger 92 mm bore that helped raise torque output to 215 ft·lb (291 Nm) @ 4800 rpm at the flywheel. Horsepower output was still 220 bhp (164 kW), but now at 6000 rpm: this is due to a slight reduction in intake camshaft duration.

In 1996, Ford discontinued the SHO V6 and began fitting the Taurus SHO's with the SHO 3.4L V8 and the Ford AX4N automatic transmission.

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