Good news, Mopar fans!
The folks at Edelbrock have joined the Gen. III HEMI party with the introduction of their Performer RPM cylinder heads for Chrysler’s Gen. III HEMI engines.
And not a moment too soon.
Up to this point, Gen. III HEMI owners were pretty much left to work with the factory castings, but Edelbrock’s latest offering finally provides a viable off-the-shelf aftermarket option for modern 5.7L, 6.1L and 6.4L HEMIs. According to Edelbrock, dyno testing has shown a 25 horsepower increase over the stock heads. The increased airflow and power is achieved through a combination of CNC combustion chambers and CNC-profiled intake and exhaust entries. Like other Edelbrock Performer RPM heads, the Gen. III heads maintain the stock valve angles and port locations.
A couple of other items of note: 1) The heads will bolt up to a Hellcat supercharger, and 2) The heads have extra material compared to stock, so there’s plenty of room for porting.
To complement the heads, Edelbrock also introduced a Gen. III intake manifold at the 2016 SEMA Show. The cast aluminum manifold is ported for increased airflow. It’s pre-drilled for the larger Hellcat throttle body and even comes with bosses for nitrous.
Rob Simons gave us a “tour” of the new Gen. III HEMI equipment at the SEMA Show. Check it out:
[…] Who is running aftermarket heads on their 5.7l Hemi?? Anyone running aftermarket heads on their 5.7l Hemi? Looking for input on how they perform and how much you spent. I have a lift/squeak in the top end of my motor and plan on installing some upgrades that I have amassed. While doing such upgrades I feel the need to make sure I find and fix this noise. Its pretty apparent it's in the valve train. Instead of pulling the heads and sending them out I am thinking that maybe I will buy a set of performance heads to install in place of the old ones, so it's really just a swap. Of course, I would probably add a cam to this package. No reason to put performance heads on with a stock cam….. I know Moe's sells their package and honestly, it's just to much money for me to justify right now. I have found a few other heads out there. Edelbrock is coming out with some and an intake manifold. Their performer series is decent and from the price of other Make/Model in that series, they should be below or around $1k which I can live with. Any input is appreciated. Link to a review of the Edelbrock head and IM: First Look: Edelbrock's Gen. III HEMI Cylinder Heads and Intake Manifold – OnAllCylinders […]
[…] nyone running aftermarket heads on their 5.7l Hemi? Anyone running aftermarket heads on their 5.7l Hemi? Looking for input on how they perform and how much you spent. I have a lift/squeak in the top end of my motor and plan on installing some upgrades that I have amassed. While doing such upgrades I feel the need to make sure I find and fix this noise. Its pretty apparent it's in the valve train. Instead of pulling the heads and sending them out I am thinking that maybe I will buy a set of performance heads to install in place of the old ones, so it's really just a swap. Of course, I would probably add a cam to this package. No reason to put performance heads on with a stock cam….. I know Moe's sells their package and honestly, it's just to much money for me to justify right now. I have found a few other heads out there. Edelbrock is coming out with some and an intake manifold. Their performer series is decent and from the price of other Make/Model in that series, they should be below or around $1k which I can live with. Any input is appreciated. Link to a review of the Edelbrock head and IM: First Look: Edelbrock's Gen. III HEMI Cylinder Heads and Intake Manifold – OnAllCylinders […]