4.7L H.O. Powertech V8 Explained
Chrysler's Powertech engine series is sometimes called the 'next generation' of the Magnum series. In fact, the Dodge marketing folks still used the 'Magnum' name for a time when describing the Powertech. The big pluses that the Powertech has over the Magnum are two spark plugs per cylinder, aluminum cylinder heads, plastic intake manifold, and single overhead camshafts. The Powertech could be found only in trucks. These were the Dodge Dakota, Durango, Nitro, and Ram, Jeep's Grand Cherokee, Liberty, and Commander, plus the Chrysler Aspen, and Mitsubishi Raider. The production run for the Powertech is from 1999-2013. There's very little aftermarket support for the 'next generation' engine, but with proper maintenance, like the Magnum, these will last forever.
Displacement= 4.7 Liters / 287 cubic inches
Bore x Stroke= 3.66" x 3.405"
Compression Ratio= 9.7:1
Firing Order= 1-8-4-3-6-5-7-2
Fuel Induction= Sequential Multi-port Fuel Injection (SMFI)
Single Overhead Camshafts
16 valves in total
Stock Camshaft Specs=
244 degrees duration intake / 254 degrees duration exhaust
.472" lift intake / .429" lift exhaust
'07-'08 Dodge Dakota
'07-'08 Dodge Ram 1500
'02-'04 Jeep Grand Cherokee
For more info on Dodge trucks, check out: 4x4Dakota.org