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Skunk2 K20/K24 Titanium Retainers




Did you know that each of Skunk2's new Titanium Retainers is serialized for your protection? Each serial number provides Skunk2 with valuable information, like material batch specifics and when each particular retainer was produced and last inspected.

Skunk2 produces its Titanium Retainers using 3D CAD (Computer Aided Design) and FEA (Finite Element Analysis) to make sure the design is optimized for strength and weight reduction. Engineers then test and prove the design on the engine dyno. Once the design is approved for manufacturing, engineers make sure to only use medical-grade titanium that’s been ultrasonically inspected and certified. After CNC machining, each retainer is then individually inspected to ensure proper hole diameter, taper angle, and that its free from machining defects.

Although retainers may appear easy to make, they are a critical part of the engine where quality control is even more critical than with most other parts. Material flaws and improper machining can result in incorrect valve spring installed heights and even retainer failure. Skunk2 cautions enthusiasts from using retainers made from companies that claim to have “engineering” capabilities but do not have practical engine building, CAD modeling, or machining experience.


  • Serialized
  • Aerospace-Grade Materials
  • CNC-Machined
  • Ultrasonically Inspected