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The 4.7-liter version was the first of this family, appearing in the 1999 Jeep Grand Cherokee. The displacement is 4.7 L; 286.7 cu in (4,698 cc) with a bore and a stroke of 3.66 in × 3.405 in (93.0 mm × 86.5 mm). It has a cast iron block and aluminum heads with two valves per cylinder.
The third version was updated in 1983 to a new style called the C4 system which used a new microcontroller. The 1983 model year, the 258 cu in (4.2 L) I6 engine featured the MCU-Super D electronics, "Pulse-Air", and an increased compression ratio, from 8.6:1 to 9.2:1. [7] The fourth version followed shortly.
Engine bay of a 1993 Jeep Grand Cherokee with 4.0 L The 5 millionth Jeep 4.0 engine produced on the "Greenlee Block Line" dated June 15, 2001 The 242 cu in (4.0 L) engine was developed by AMC in just 26 months using many off-the-shelf components while featuring, among others, additional strength, improved combustion chamber, port setup, and cam ...
The 4.7 L High Output engine that first appeared with the Grand Cherokee Overland WJ was dropped from the Jeep lineup. It was used in the Dodge Dakota and Dodge Ram 1500. The 4.7 L was revised in 2008, increasing horsepower and torque to 310 hp (231 kW; 314 PS) and 330 lb⋅ft (447 N⋅m) of torque.
The F4-134 was introduced in 1950 in the Jeep Truck. [4] Willys vehicles with this engine were designated 4-73 model. [6] 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]
While other Jeep vehicles used the Mopar 5 x 4.5 bolt circle, this was the first Jeep following the 1987 Chrysler buyout to receive a wider wheel bolt pattern: – 5 x 5 - (metric 5 x 127mm). A notable feature available in this generation was the automatic four wheel drive option called Quadra-Drive , which employed the New Venture Gear NV247 ...
The Pentastar engine was introduced at the 2009 New York Auto Show. [2] [3] The engine design allows the use of E85 or 87 octane fuel and features dual variable valve timing. Forced induction, and cylinder deactivation options were engineered into the engine design, but have not been implemented from the factory, remaining "on the shelf" as of ...
Chrysler 545RFE five-speed (used with 5.7 L Hemi engine and VM Motori 2.8 L Turbo Diesel, same as 45RFE used with 4.7 L, but different software enabling a second overdrive) TorqueFlite 998 three-speed; used with the 4.2 L I6 in most AMC cars and 304 V8s.