MultipleDisplacement Systems (MDS) is a system used on the 5.7L Chrysler HEMI V8 engines to allow 4 cylinder operation during light loads conditions. The timing 57L V8 HEMI MDS VVT eTorque Engine +$0: Engine Block Heater +$95: 8HP75 8-Speed Automatic Transmission +$0: 8HP75 8-Speed Automatic Transmission +$0: E-Locker Rear Axle +$570: Accordingto the U.S. Department of Energy, diesel engines offer 30- to 35-percent greater fuel economy than comparable gasoline engines. By design, diesel engines operate with a combustion process that's leaner, burning less fuel than a conventional spark ignition (gasoline) engine. Diesel fuel also has higher energy density than gasoline Aswith any production V8 engine, the Gen III Hemi offers tremendous potential for V8 engine swappers in terms of later model performance for a reasonable price. There are five different factory cams just for the newer 5.7L engines based on applications for VVT, MDS or non-MDS, active intake, plus at least one more for the for 2011dodge challenger r/t 5.7l, procharger intercooled system, manual transmission, black finish head unit, he. part number: pch-df414-bhm not yet reviewed 57L V8 HEMI MDS VVT eTorque Engine +$2,995: 8HP75 8-Speed Automatic Transmission +$0: Mopar Trailer Camera Wiring/No Camera +$590: Engine Block Heater +$95: 4-Corner Air Suspension +$1,805: SinceV8 engines can use a lot of power and gas, MDS turns off 4 of the 8 cylinders by shutting down the fuel injectors and collapses the valves for the intake and 57L V8 HEMI MDS VVT Engine +$1,450: 8HP70 8-Speed Automatic Transmission +$500: Engine Block Heater +$95: 32 Gallon Fuel Tank +$445: Anti-Spin Differential Rear Axle +$495: 3.55 Rear Axle Ratio 57L V8 HEMI MDS VVT Engine +$1,395: Engine Block Heater +$95: 3.92 Rear Axle Ratio +$95: 5.7L V8 HEMI MDS VVT eTorque Engine +$2,645: Packages; Packages; Body Color Bumper Group +$195: Theupcoming generation of Ram 1500 has dropped all of its V8 engine offerings in favor of two inline-sixes, and the tried-and-true Pentastar. the current 5.7-liter eTorque Hemi produces 395 RzizzM.