The4.7L V8 HO features a 9.7:1 compression ratio, high-compression domed pistons, two knock sensors, new camshafts, and tuned intake. This engine has an additional 30 horsepower and 35 lb-ft of torque over a basic engine. In 2005+ Jeep Grand Cherokee, the 4.7L H.O. version was replaced by a 5.7L V8 Hemi, but for some models, it was The2008 Jeep Grand Cherokee is the only vehicle with a choice of five engine offerings: Award-winning 3.0-liter common rail diesel V-6 engine - Now available on Jeep Grand Cherokee Limited and Overland. 3.7-liter V-6 engine - Standard on Jeep Grand Cherokee Laredo. All-new 4.7-liter V-8 engine - Standard on Jeep Grand Cherokee Limited. Reviewerssee the 2008 Jeep Grand Cherokee as an excellent off-road vehicle with a luxurious interior, plenty of options and five strong engine choices. Redesigned for this year, the SUV features a new 4.7-liter V8 engine that delivers a 24 percent increase in horsepower and improved fuel economy over the previous V8. JeepGrand Cherokee SRT8® is the quickest, most powerful Jeep vehicle ever • Powered by the 6.1-liter HEMI® V-8 producing 420 horsepower (313 kW) and 420 lb.-ft. (569 N•m) of torque, the Jeep Grand Cherokee SRT8’s powertrain and performance-tuned ride and handling offer a world-class performance SUV experience TheDodge 5.7L HEMI engine is also commonly referred to as the 345 HEMI in honor of its 345 cubic inch displacement. It’s a long-running pushrod engine that debuted with 345 horsepower in the 2003 Dodge Ram. The 5.7 V8 remains much the same today, however, it did go through updates to improve power and fuel efficiency. The5.7 Is A Jack Of All Trades. Despite the 5.7 and 6.4-liter V-8 Hemi engines sharing a lot of hardware (most of it, really), the 6.4-liter unit has been designed with performance in mind. It JeepGrand Cherokee Supercharger Kits; Dodge Durango Supercharger Kits; 2003-2008 5.7L HEMI Forged 2618 Drop In Pistons and Rods Power Package by MMX The AIRAID Cold Air Dam (CAD) Air Intake is engineered to give your engine larger amounts of cooler air to produce more horsepower View Details. $399.99. Page: of 13 Next The2013 Jeep Grand Cherokee featured a total of three individual powerplants, the most powerful of which could only be selected by springing for the line’s top-of-the-mark SRT8 package.The 2013 WK2 came standard with Chrysler’s Pentastar V6 (290 horsepower), while an optional 5.7-liter Hemi V8 (360 horsepower) was offered for those with a LimitedSport Utility 4D. $41,015. $6,237. Overland Sport Utility 4D. $44,395. $8,065. For reference, the 2008 Jeep Commander originally had a starting sticker price of $31,160, with the range 227. $3,350. 17.9 barrels/yr. 509 grams/mile. 422 miles. Total Range. Page 1. Fuel economy of the 2007 Jeep Grand Cherokee 4WD. 1984 to present Buyer's Guide to Fuel Efficient Cars and Trucks. Estimates of gas mileage, greenhouse gas emissions, safety ratings, and air pollution ratings for new and used cars and trucks. TpNA1.