PPM Cyro Treated Rocker Arm Assembly Set - 6.4 Power Stroke


Rocker arm assembly for the 6.4 engine. This includes 16 rocker arms, 8 intake and 8 exhaust. All the rockers and pedestal’s to do a entire motor. These are a common wear item for the 6.4L
These are the new updated ford OEM rockers. They are then cryo treated for superior strength and durability.


  • Increase resistance to abrasive wear
  • Changes the entire grain structure of the metal, not just the surfaces
  • Increases durability and wear life
  • Decreases brittleness
  • Increases tensile strength, toughness and stability
  • Relaxes internal stresses