Mitsubishi 6G7x engine
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The 6G7x series is a V6 piston engine from Mitsubishi Motors. Three displacement variants have been produced with both SOHC and DOHC. MIVEC variable valve timing was also fitted, and the 2.5 and 3.0 L versions were also produced with gasoline direct injection. Modern versions feature a one-piece cast crankshaft and cast aluminum intake manifold.
6G72
The 6G72 is a 3.0 L (2972 cc) engine. Bore is 91.1 mm and stroke is 76 mm. SOHC 12-valve, SOHC 24-valve, and DOHC 24-valve versions have been produced.
The latest version is used in the Eclipse and Galant. Output in 2004 is 210 hp (157 kW) at 5500 RPM with 205 ft·lbf (278 N·m) of torque at 4000 RPM. It has a cast iron engine block and aluminum SOHC cylinder heads. It uses MFI fuel injection, has 4 valves per cylinder with roller followers and features fracture-split forged steel connecting rods.
Applications:
- Mitsubishi 3000GT/Dodge Stealth
- 1989-1995 Plymouth Acclaim/Dodge Spirit
- 1987-2000 Dodge Caravan/Plymouth Voyager
- 1990-1993 Dodge Ram 50
- 1988-1989 Dodge Dynasty
- 1987-1995 Chrysler LeBaron
- Chrysler TC
- 1988-1989 Chrysler New Yorker
- Dodge Daytona
- Dodge Shadow ES
- 1992-1994 Plymouth Duster
- 2000-2005 Mitsubishi Eclipse (2000 Fed Spec 205 hp 205 ft·lbf, 2000 Cali Spec 200 hp 200 ft·lbf, 2001-2005 Same as Cali)
- 1999-2003 Mitsubishi Galant
- 1990-1998 Hyundai Sonata
- 2001-2005 Dodge Stratus/Chrysler Sebring Coupe
- 1988-1997 Mitsubishi Pajero (aka Montero/Shogun)
- 1991-1996 Mitsubishi Verada (Australia)
- 1993-2002 Mitsubishi Magna (Australia)
- 1990-2006 Mitsubishi Triton (aka L200)
- 1998-present Mitsubishi Challenger (aka Montero Sport)
6G73
The 6G73 displaces 2.5 L (2497 cc).Applications:
- 1992-1996 Mitsubishi Galant
- 1995-2000 Chrysler Sebring/Dodge Avenger
- 1995-2000 Chrysler Cirrus/Dodge Stratus
- Mitsubishi Diamante (American Diamantes always used a 3.0 L V6)
- The DOHC carbureted G6AV (also called the 2.5 D) is the small 2.5 L (2497 cc) version. Bore is 83.5 mm and stroke is shared with the 3.0 at 76 mm. Output is 160 hp (119 kW) at 6000 RPM and 151 ft·lbf (204 Nm) at 4500 RPM.
6G74
The 3.5 L (3497 cc) 6G74 is a 24-valve unit available with either SOHC, DOHC, or MIVEC DOHC. Bore is 93 mm and stroke is 85.8 mm. Output is 205 hp (153 kW) at 5000 RPM with 231 ft·lbf (313 N·m) of torque at 4000 RPM for the SOHC, 194 kW at 6000 and 324Nm at 4500 rpm for the MIVEC. The most common 6G74 has a cast iron engine block and an aluminum cylinder head. It uses MFI fuel injection and uses forged steel connecting rods.
Applications:
- 1996-2005 Mitsubishi Verada (Australia)
- 1999-2005 Mitsubishi Magna (Australia)
- 1993-2004 Mitsubishi Pajero (aka Montero/Shogun)
- 1997-2004 Mitsubishi Diamante
- 2006-present Mitsubishi Triton (aka L200)
- Mitsubishi Montero Sport
- Chrysler 300M
6G74 GDI
The gasoline direct injection version of the 6G74 was launched in April 1997 as the first GDI V6 engine ever produced. It differed from the basic 6G74 in many ways apart from its unique fuel injection system — it had a crown-curved rather than flat combustion chamber, upright intake ports rather than angled, and a 10.4:1 rather than 10.0:1 compression ratio. Mitsubishi claimed 30% better fuel economy, a 30% reduction in emmissions, and higher power outputs than Diesels.6G75
The 6G75 is a 3.8 L (3828 cc) version with 95 mm bore and 90 mm stroke. Output is 230 hp (172 kW) at 5250 RPM with 250 ft·lbf (339 N·m) of torque at 4000 RPM. It has forged steel connecting rods.
Applications:
- 2006-present Mitsubishi Eclipse
- Mitsubishi Galant
- Mitsubishi Montero
- Mitsubishi Endeavor
- Mitsubishi 380 (175 kW @ 5250 rpm with 343Nm @ 4000 rpm)
See also
References
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