Dodge 5.2L & 5.9L Magnum





What Is The Top JEGS Mopar Magnum Cylinder Head?

The most popular JEGS 5.2 and 5.9 magnum cylinder heads are the fully assembled version, complete with valves and valve springs.

How Much Do JEGS Mopar Magnum Cylinder Heads Cost?

Bare 318 and 360 magnum heads cost a little over $350. Fully assembled 5.2 and 5.9 magnum heads are available for around $450.

What Are The Main Benefits of JEGS Mopar Magnum Cylinder Heads?

JEGS Magnum Mopar heads for 5.2 liter/318 and 5.9 liter/360 heads have stronger exhaust valve seats than the original cylinder heads that came from the factory and often would crack, requiring repair or replacement. These improved heads ensure longer service life and improved reliability for your vehicle's engine.

How To Install JEGS Mopar Magnum Cylinder Heads

Depending on the year, make, and model of both the vehicle and engine, the steps to install cylinder heads can change. It is important to follow the manufacturer shop or repair manual directions for your specific application, which will allow proper assembly. In most applications, the first step is removing all engine components that are connected to the original cylinder heads or in the way of replacement. This includes the drive belts, pulleys, and accessories. Next, the spark plugs and wires are removed as well as the intake manifold, fuel injection components, EGR pipe, and PCV hose connections to the cylinder heads. The cylinder head bolts are then removed and carefully marked so that they go in the same place during reassembly. The cylinder heads can then be removed along with the head gaskets. Preparation for assembly begins with cleaning all parts and gasket surfaces. Installation of cylinder heads is in the reverse of removal, with the correct torque specifications and sequence used as well as all new component gaskets for proper sealing.