Chrysler 2.2 & 2.5 Engine - 2.5

2.5

In 1986, Chrysler increased the displacement of the engine to 2.5 L (153 cu in) and added counterrotating balance shafts to smooth out the vibrations and harsh harmonics normally produced by long-stroke 4-cylinder engines. The increased displacement came from a raised deck and longer 104 millimetres (4.09 in) stroke, making the 2.5 engine even more undersquare and tuned for low-end torque rather than high-RPM power. This engine replaced the Mitsubishi 2.6 engine Chrysler had been using. In normally aspirated form, the 2.5 produced 100 horsepower (75 kW) and 136 lb·ft (184 N·m). In 1989 there was a redesign of the 2.5 to permit both it and the 2.2 to use a common cylinder block. The crankshaft, connecting rods and pistons are completely different in the common-block 2.5 compared to the previous 2.5. This engine competed with Ford Motor Company's HSC engine, which was increased from 2.3 L to 2.5 L for use in the 1986 to 1991 Taurus. The Chrysler 2.5 was retired in 1995.

• 1986–1993 Chrysler LeBaron
• 1986–1987 Chrysler New Yorker
• 1986–1988 Dodge 600
• 1986–1989 Dodge Aries
• 1987½–1995 Dodge Caravan
• 1989–1995 Dodge Dakota
• 1986–1993 Dodge Daytona
• 1988–1993 Dodge Dynasty
• 1986–1989 Dodge Lancer
• 1987–1994 Dodge Shadow
• 1989–1995 Dodge Spirit
• 1989–1995 Plymouth Acclaim
• 1986–1988 Plymouth Caravelle
• 1986–1989 Plymouth Reliant
• 1987–1994 Plymouth Sundance
• 1987½–1995 Plymouth Voyager