Dodge Ram vehicles are fitted with a whole range of gasoline engines: from the 3.7-liter six-cylinder to the ten-cylinder eight-liter monster V10 Viper Magnum, which is installed on the Dodge Ram SRT-10, which was produced from 2004 to 2006 inclusively. Below we will look at the main types of gasoline engines that are installed in the new generation of Dodge Ram trucks.
V10 8.3L Viper Magnum
Let’s start with the most powerful engine in the gasoline lineup, which was installed on the Dodge Ram SRT-10. This particular modification was included in the Guinness World Records as the fastest production pickup on the planet.
| Engine displacement | 8300 cm3 |
| Number of cylinders | 10 |
| Horsepower | 510 |
| Torque | 712 Nm |
| 0-100 KmH | 4.9s |
| Fuel economy | doesn’t matter 🙂 |
V8 6.4L HEMI Magnum
A modified version of the 5.7 HEMI engine. Available for Dodge Ram from the 2015 model year. The 6.4L engine even features VCT and MDS systems (but not on all versions). In addition, for medium and heavy Dodge Ram from the 2014 model year is offered a de-energized version of the 6.4L engine, where the goal is traction throughout the range, rather than the maximum power, which is “only” 366-410 hp It is, in its kind, a conceptual successor to the Magnum V10 8L engine. Interestingly, the “heavy” 6.4L Hemi could be fitted with not one but two electric generators (220 and 160 amps), which is a fairly rare occurrence on production cars.
| Power | 410 Hp |
| Engine location | Front, Longitudinal |
| Torque | 582 Nm |
| Engine displacement | 6417 cm3 / 392 cu. in. |
| Number of cylinders | 8 |
| Cylinder Bore | 103.9 mm / 4.09 in. |
| Piston Stroke | 94.6 mm / 3.72 in. |
| Compression ratio | 10 |
| Number of valves per cylinder | 2 |
| Fuel System | Multi-point indirect injection |
| Engine oil capacity | 6.6 l |
| Coolant | 15.8 l |
V8 5.7L HEMI Magnum
Hemi (hemispherical engine; derived from HEMIspherical) is an internal combustion engine with hemispherical combustion chambers. It was originally developed by Chrysler for use on the P-47 Thunderbolt fighter aircraft.
The top vault of the cylinder combustion chamber was designed as a hemispherical dome with two valves and a spark plug. The lower surface of the combustion chamber was formed by the piston having a flat surface. Other engines used, and mostly still use to this day, cylindrical combustion chambers – with a flat piston and upper vault surface. Chrysler positions HEMI as a “racing” technology for high-performance cars, and it is typically used in V8 engines. Characteristic features of HEMI also include a single camshaft (in each cylinder head) driving the valves and rocker tappets on two shafts on opposite sides of the camshaft.
The main advantages of HEMI engines are:
- The positioning of the valves at an angle, rather than in the same plane as in conventional engines, allows for larger valves.
- Larger valves allow better combustion chamber ventilation and increased power output.
- This shape of the chamber vault allows the channels through which the fuel-air mixture travels to be less curved, resulting in less resistance to mixture flow. Combined with increased valve dimensions, this increases the engine’s intake capacity.
Since 2006, the HEMI engines are equipped with the MDS (Multi Displacement System), which disables 4 out of 8 cylinders when driving in economy mode, which allows for almost half the fuel consumption in the country cycle.
| Power | 395 Hp |
| Engine location | Front, Longitudinal |
| Torque | 548 Nm |
| Engine displacement | 5654 cm3 / 345.03 cu. in. |
| Number of cylinders | 8 |
| Cylinder Bore | 99.5 mm / 3.92 in. |
| Piston Stroke | 90.9 mm / 3.58 in. |
| Compression ratio | 10.5 |
| Number of valves per cylinder | 2 |
| Fuel System | Multi-point indirect injection |
| Engine oil capacity | 6.6 l |
| Coolant | 13.3 l |
V8 Magnum 4.7L
Let’s go back to the year 1999. The new 287 cubic inch (4.7 liter) engine inherited nothing but glory from the old, reliable V8s of earlier years. For the first time, Chrysler used aluminum block heads, a plastic intake manifold, and magnesium block head covers on its engines.
| Power | 310 Hp |
| Engine location | Front, Longitudinal |
| Torque | 447 Nm |
| Engine displacement | 4701 cm3 / 286.87 cu. in.u. in. |
| Number of cylinders | 8 |
| Cylinder Bore | 93 mm / 3.66 in. |
| Piston Stroke | 86.5 mm / 3.41 in. |
| Compression ratio | 9.8 |
| Number of valves per cylinder | 2 |
| Fuel System | Multi-point indirect injection |
| Engine oil capacity | 5.7 l |
| Coolant | 10.2 l |
V6 3.6L Pentastar
The Pentastar 3.6 engine comes in two versions. Since 2011, the world saw the traditional atmospheric engine with VVT (Variable Valve Timing), five years later the engine was redesigned and added VVL (Variable Valve Lift) system on the intake, which allows to change the height of the valve lift. The engine is not considered something new, so Chrysler only changed the marking from ERB to ERC and wrote UPG I in the comments, which is the first upgrade.
| Power | 305 Hp |
| Engine location | Front, Longitudinal |
| Torque | 364 Nm |
| Engine displacement | 3604 cm3 / 219.93 cu. in. |
| Number of cylinders | 6 |
| Cylinder Bore | 96 mm / 3.78 in. |
| Piston Stroke | 83 mm / 3.27 in. |
| Compression ratio | 10.2 |
| Number of valves per cylinder | 4 |
| Fuel System | Multi-point indirect injection |
| Engine oil capacity | 5.7 l |
| Coolant | 13.3 l |