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The AMC straight-4 engine is a 2.5 L straight-four engine developed by American Motors Corporation (AMC) that was used in a variety of AMC, Jeep, and Dodge vehicles from 1984 through 2002. The 2.5 L I4 Jeep engine shared design elements and some internal components with the AMC 4.0 L I6 that was introduced for the 1987 model year.
The 107.8 cu in (1.77 L) is an AMC designed air-cooled V4 engine that was used in AMC's lightweight aluminium-bodied M422 'Mighty Mite' military vehicle, built from January 1960 to January 1963 as an air transportable (by the helicopters of the time) Jeep for the U.S. Marine Corps. [1]
This engine was unavailable in the CJ series until the introduction of the CJ-3B version in 1953, which had a distinctive high hood to accommodate the much taller engine. [2] Production of this engine continued through 1971, which was after American Motors Corporation (AMC) purchased Kaiser Jeep in 1970. Applications: 1950–1961 Willys Jeep Truck
The "GEN-3" engines were available in Jeep utility vehicles starting in 1971. [3] It is not the same as Chrysler's 360 V8. [4] Chrysler continued production of the AMC 360 engine after the 1987 buyout of AMC to power the full-size Jeep Wagoneer (SJ) SUV that was produced until 1991. [5]
The name was subsequently passed on to 4.0s in the other Jeep models that used the engine, the Cherokee and Wrangler. The cylinder head was again changed for the 2000 model year to a more emissions-friendly design. [citation needed] This head was designated as "0331" in the casting number. Early 0331 heads are prone to cracking, causing coolant ...
The extra power made it the engine of choice for the U.S. Army. [5] The engine displacement was 134.2 cu in (2,199 cc) with a 3.125 in (79.4 mm) bore and 4.375 in (111.1 mm) stroke, a very undersquare design. It was an L-head design, with valves parallel with the cylinders. Initial power output was 60 hp (45 kW; 61 PS) at 4000 rpm and 105 lb⋅ ...
As with some other engines of various architecture used in some Jeeps, EDZs used in the Liberty carried Chrysler's PowerTech name. The first 2.4L turbocharged engine was the EDZ turbo (variant of regular EDZ engine and developed by Chrysler's Mexican division), used on the Mexican Dodge Stratus R/T & Cirrus since 1996 to 2000. It was developed ...