bearings are unique), and distributor with any other Chrysler 2.2/2.5. This head was also used in IMSA racing, but not in turbocharged form. 2.5 In 1986, Chrysler increased the displacement of the engine to 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 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 and . 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 Turbo I The 2.5 engine was offered in a Turbo I form starting in 1989. This engine had multipoint fuel injection and was rated at and . In some models the 2.5 Turbo I was available in a "High Torque" version, which put out and by allowing higher boost pressures at low rpms. 1989–1992 Chrysler LeBaron 1989–1990 Dodge Caravan 1989–1992 Dodge Daytona 1989–1992 Dodge Shadow 1989–1992 Dodge Spirit 1989–1992 Plymouth Acclaim 1989–1991 Plymouth Sundance 1989–1990 Plymouth Voyager Turbo II In the Mexican market, a 2.5 Turbo II engine with intercooler and intake charge temperature sensing was available, rated at and to . Carbureted In the Mexican market, 1986 through 1990 vehicles used versions of the 2.2 and 2.5 engines operating on leaded gasoline, equipped with a carburetor, a tubular exhaust header, and electronic control of ignition timing. This induction and ignition system used technology and components very similar to those employed in Chrysler's US-market Lean Burn emission control systems of the late 1970s. This configuration was discontinued in favour of electronic fuel injection for the 1991 model year,