Engine Chrysler EZB

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.


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
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.

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