4.7
The 4.7-liter version was the first of this family, appearing in the 1999 Jeep Grand Cherokee. The displacement is 287 cubic inches (4698 cc) with a bore of 3.66 in (93 mm) and a stroke of 3.405 in (86.5 mm). It has a cast iron block and aluminum heads with two valves per cylinder. It uses a chain-driven overhead camshaft. It originally produced 235 hp (175 kW) and 295 lb·ft (400 N·m) of torque. The 2012 4.7L has 2 valves and 2 spark plugs per cylinder and puts out 310 hp (230 kW) and 330 lb·ft (450 N·m). Dodge has claimed that it has increased compression ratio and improved cylinder head port flow, the 4.7 L V8 is available with three transmissions.
The PowerTech was on the Ward's 10 Best Engines list for 1999.
Applications:
- 1999–2009 Jeep Grand Cherokee
- 2000–2011 Dodge Dakota
- 2000–2009 Dodge Durango
- 2002–present Dodge Ram 1500
- 2006–2009 Jeep Commander
- 2007–2009 Chrysler Aspen
Read more about this topic: Chrysler PowerTech Engine