Skunk2 308-05-0410 Pro Series Titanium Valve Retainer Set for 02-11 Honda/Acura

Vehicle Fitment

• 2002-2006 Acura RSX (Base/Type-S, 2.0L K20A3/K20A2/K20Z1)
• 2004-2008 Acura TSX (2.4L K24A2)
• 2003-2007 Honda Accord (2.4L K24A4/K24A8) - select trims
• 2002-2011 Honda Civic Si (2.0L K20A3/K20Z3) - U.S. market
• 2003-2010 Honda Element (2.4L K24A4) - select years
• 2000-2009 Honda S2000 (2.0L F20C1 / 2.2L F22C1) - select years

Features

• Medical-grade titanium retainers reduce valvetrain mass for high-RPM stability
• Radius-cut edges and lightening grooves improve rocker-arm clearance and weight reduction
• Reduced overall height design improves valve seal clearance and frees up lift margin
• Designed for aggressive camshafts and upgraded valve springs in performance builds
• Serialized batch production for traceability and quality assurance
• Direct replacement for stock retainers in K-Series and F-Series Honda/Acura engines
• Opportunity to raise rev limit safely by reducing valvetrain inertia
• Manufactured in-house using CAD/FEA and dynamometer validation for real-world reliability

Specifications

• Part number: 308-05-0410
• Set of 16 titanium retainers (one per valve) for dual-valve heads
• Designed for Honda K20, K24, F20C, F22C engine platforms
• Material: Medical-grade titanium alloy
• Weight reduction: Significant compared to OEM steel retainers (manufacturer claim)
• Install note: On 2004+ engines ensure use of correct keeper/lock configuration - pre-2004 keepers may be required

Included Components

• 1x Set of 16 titanium valve spring retainers (Skunk2 part # 308-05-0410)

Product Description

The Skunk2 308-05-0410 Pro Series Titanium Valve Retainer Set is engineered for high-performance builds of Honda/Acura K-Series (K20, K24) and F-Series (F20C/F22C) engines where reducing valvetrain mass is critical. By replacing the heavier factory steel retainers with lightweight titanium units featuring radius-cut geometry and lightening grooves, this set allows the engine to operate more smoothly at higher RPMs and handle aggressive cam and spring configurations.

Manufactured to strict in-house standards with full CAD/FEA analysis and dyno validation, each retainer is serialized for traceability and comes ready for installation. The reduced height design improves valve seal clearance and opens up valuable margin for performance upgrades. Installers working on 2004 and newer engines should verify keeper/lock compatibility - mismatch may lead to component failure.

This product is ideal for engine builders, track enthusiasts or anyone upgrading springs, cams or induction in Honda/Acura performance platforms. Fitment has been verified through 2011 for the listed models; usage beyond this range must be confirmed by checking engine code, head configuration and component compatibility.