Rocker arm assembly for the 6.4L 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 6.4LThese 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