The Mercedes-Benz M120 engine is a V12 automobile piston engine family used in the 1990s and 2000s.
The M120 family is built in Stuttgart, Germany. It has an aluminum engine block lined with silicon/aluminum. The aluminum DOHC cylinder heads are 4 valves per cylinder designs. It uses SFI fuel injection and features forged steel connecting rods. This engine developed 394 - 408 PS and 420–428 ft·lbf of torque for the 6.0 L version. In 1992 only the M120 engine was offered in North America in 402 hp (300 kW) format and from 1991-92 408 PS In Europe. All other years 1993-1999 have the 394 PS (290 kW) version.
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