The Chrysler EZB or HEMI 5.7 5.7-liter V8 engine was produced in Mexico from 2004 to 2008 and was installed on top versions of well-known models such as the 300C, Charger or Grand Cherokee. This power unit was equipped with an MDS half-cylinder off-load system.
The HEMI series also includes internal combustion engines: EZA, EZH, ESF and ESG.
The Chrysler HEMI 5.7 EZB engine features a cast-iron block and two aluminum heads with hemispherical combustion chambers, a single camshaft (OHV), and two valves per cylinder (16 valves in total). The Chrysler HEMI 5.7 engine used an electronically-controlled Sequential Multi-Port Electronic Fuel Injection system, distributorless, coil over plug ignition system with two spark plugs per cylinder and Multi-Displacement System (MDS), which enabled the engine to switch from eight to four-cylinder operation.
The engine was installed on:
- Chrysler 300C 1 (LX) in 2004 – 2008;
- Dodge Charger 1 (LX) in 2005 – 2008;
- Dodge Magnum 1 (LE) in 2004 – 2008;
- Jeep Commander 1 (XK) in 2005 – 2008;
- Jeep Grand Cherokee 3 (WK) in 2004 – 2008.
Specifications
| Production years | 2004-2008 |
| Cylinder block alloy | cast iron |
| Fuel system | injector |
| Configuration | V8 |
| Number of cylinders | 8 |
| Valves per cylinder | 2 |
| Block head | aluminum, 16v |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | no |
| Piston stroke, mm | 90.9 |
| Cylinder bore, mm | 99.5 |
| Compression ratio | 9.6 |
| Displacement, cc | 5654 |
| Power output, hp | 325 – 345 |
| Torque output, Nm | 500 – 530 |
| Fuel type | petrol |
| Euro standards | EURO 3 |
| Weight, kg | — |
| Fuel consumption, L/100 km (for Chrysler 300C 2005) — city — highway — combined |
18.1 8.7 12.1 |
| Recommended engine oil | 5W-20 |
| Engine oil capacity, liter | 6.7 |
| Engine lifespan, km | ~375 000 |
Disadvantages of the EZB engine
- The motors of this series are very reliable, the owners complain only about the high consumption;
- For the normal operation of the MDS system and hydraulic lifters, 5W-20 oil is required;
- With prolonged use of low-quality fuel, the EGR valve sticks here;
- Also, sometimes the exhaust manifold leads, so much so that the fastening studs burst;
- Often heard strange sounds under the hood, nicknamed on the forums Hemi ticking.
