Denis_Desjardins. 4 posts · Joined 2010. #3 · Apr 4, 2010. Confirmed, when your hemi 5.7 is in a constant speed and on flat highway, it will automaticly go down to 4 Cyl. And should give you around 20% economy if your car is regularly maintained and oil viscosity is OK. C. The ratings in this review are based on our full test of the Chrysler 300S (5.7-liter V8 | 8-speed experience is a WIN-WIN for the 300C. 300 and Hemi never stop pleasing! specs. Safety Displacement: 5.7 L (5,654 cc) Compression Ratio: 9.6 and 10.5 (MY 2009+ ) Weight: 560 lbs. Maximum HP: 395 HP at 5,600 RPM. Maximum Torque: 410 lb-ft at 3,950 – 4,400 RPM. The 5.7 Liter HEMI is the only available gasoline engine in the Ram Heavy Duty. Chrysler released this machine for the model year 2002 on the Dodge Ram 2500 and 3500 as The Hemi 6.1 Engine is a reliable, well-built engine that can deliver high mileage in excess of 250,000 miles, with regular services and maintenance. The Hemi 6.1 engine was based on the 5.7-liter engine but after being put on a strict diet. It was a much lighter engine, thanks to a forged micro-alloy steel crankshaft, lighter pistons, cast place baggy under it to catch the coolant. undo both the bolts, pull back hose. pull/pop out the old thermostat be careful not to ruin the rubber gasket. insert the new one, tighten the bolts, open the overflow tank and poor back in the coolant from the baggy. reference weights: base curb weight: 1835 kg / 4045 lbs, gross weight GVWR: 2280 kg / 5026 lbs, more data: 2007 Chrysler 300C 5.7 V8 Hemi (aut. 5) Specifications Review 5) Specifications Review how fast is this car ? top speed: 250 km/h (155 mph) (declared by factory); Chrysler’s mighty 5.7-liter Hemi V8 making 363 horsepower and 394 lb-ft of torque is optional in the 300S. See Full Specs for All 2021 Chrysler 300 Styles. The Last Chrysler 300C Has Need MPG information on the 2011 Chrysler 300C? Visit Cars.com and get the latest information, as well as detailed specs and features. as well as detailed specs and features. 5.7L V8 hemi 300C Sedan 4D. 4 of 4. 300 SRT8 Sedan 4D. V8, HEMI, 5.7 Liter. V8, HEMI, 6.1 Liter. Cargo Volume: features and options check out Kelley Blue Book's 2007 Chrysler 300 specs page. Acceleration and Power. The 2017 300 comes standard with a 3.6-liter V6 engine that produces 292 horsepower. A 300-horsepower version of this engine comes with the 300S model. A 5.7-liter Hemi V8 that puts out 363 horsepower is optional. All 300 models come with an eight-speed automatic transmission. xJD5rn2.