Edelbrock Cylinder Head Performer RPM 2003+ Chrysler Gen III Hemi 5.7L/6.4L V8 67cc Complete

If you're looking to get more out of your Chrysler Gen III HEMI engine, these Edelbrock Performer RPM cylinder heads are a solid choice. They're designed as a direct bolt-on upgrade for 2009 and newer 5.7L HEMI engines, and they're also compatible with Hellcat components. Edelbrock casts these heads from A356 aluminum, heat-treats them to T6 specifications, and then machines them right here in the USA at their California facility, ensuring a well-built part.

What sets these heads apart is the attention to airflow. They feature fully CNC machined combustion chambers, bowls, and port entries/exits. This means a smoother path for air and fuel in, and exhaust out, which can lead to improved performance. Edelbrock also added extra material in key areas like the deck and combustion chambers, making them stronger and better able to handle increased cylinder pressures. The rocker bosses are reinforced for stability, and there's even extra material around the intake and exhaust ports if you plan on doing further porting for racing applications. Importantly, the intake and exhaust port flanges stay in their factory locations, so you can use your stock manifolds and other components. The valves are tipped away from the bore wall to unshroud them, allowing for larger valve sizes while keeping factory geometry. The larger seat diameters help with heat transfer and durability.

For the ultimate performance, Edelbrock suggests pairing these heads with their Victor EFI intake manifold (#7179). These heads are machined to work on either the driver or passenger side of the engine.