Skunk2’s Pro Titanium Retainers are engineered for high-performance Honda K-Series engines, delivering reduced valvetrain mass, improved valvetrain stability, and increased RPM capability. Each retainer is CNC-machined from certified medical-grade titanium and optimized using 3D CAD and FEA analysis for maximum strength and minimum weight.

Unlike standard retainers, Skunk2's feature radius-cut edges for added rocker clearance, precision lightening grooves, and reduced heights for improved valve seal clearance and spring compatibility. Every unit is serialized and individually inspected for material quality, dimensional accuracy, and critical surface finish. Proven on engines revving to 11,000 RPM and beyond, these retainers offer the reliability demanded in both track and street applications.

Important: For 2004+ engines, use pre-2004 OEM keepers/locks (no laser etching) to ensure proper fitment. Failure to use the correct locks can lead to serious engine damage.

Key Features:

• CNC-machined from certified medical-grade titanium

• Radius-cut edges and lightening grooves reduce mass

• Reduced overall height for better valve seal clearance

• Individually serialized for quality tracking

• Proven in engines operating at over 11,000 RPM

• Ideal for high-RPM performance and racing applications

• Must use pre-2004 keepers/locks with 2004+ engines

Recommended Pairings:

• Alpha Series Valve Springs (P/N 311-05-1380)

• Pro XP Valve Springs (P/N 311-05-7380)

Vehicle Fitment:
Compatible with all Honda K-Series engines, including:

• Honda K20 / K20A / K20Z

• Honda K24 / K24A / K24Z

Included:

• (1) Complete Set of Titanium Retainers (suitable for 16 valves)