Skunk2 Ultra Series intake and exhaust valve set for the Honda K-series engine, the premium line forged one-piece from HNV3 martensitic steel (intake) and EV8 austenitic nickel-based steel (exhaust) for high oxidation and corrosion resistance under extreme heat. Each valve is heat-treated and finished with a Chromium Nitride PVD coating that improves wear and heat resistance and reduces stem-to-guide friction. Sold as a 16-valve kit.
| Type | Engine valve set |
| Series | Ultra Series (standard compression) |
| Engine | Honda/Acura K-series VTEC |
| Head Diameter | 35.00mm intake / 30.00mm exhaust |
| Stem Diameter | 5.48mm intake / 5.45mm exhaust |
| Overall Length | 109mm intake / 108.6mm exhaust |
| Material | HNV3 / EV8 one-piece forged, Chromium Nitride PVD coated |
| Quantity | 16 valves per kit |
| Part Number | 310-05-9535 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2006 | Acura | RSX | Base |
| 2002-2006 | Acura | RSX | Type-S |
| 2004-2008 | Acura | TSX | Base |
| 2003-2005 | Honda | Accord | DX |
| 2003-2007 | Honda | Accord | EX |
| 2007 | Honda | Accord | EX-L |
| 2003-2007 | Honda | Accord | LX |
| 2006 | Honda | Accord | LX Special Edition |
| 2005 | Honda | Accord | SE |
| 2007 | Honda | Accord | Special Edition |
| 2006-2007 | Honda | Accord | Value Package |
| 2008 | Honda | Civic | MUGEN Si |
| 2002-2012 | Honda | Civic | Si |
| 2002-2012 | Honda | CR-V | EX |
| 2007-2012 | Honda | CR-V | EX-L |
| 2002-2012 | Honda | CR-V | LX |
| 2005-2006,2011 | Honda | CR-V | SE |
| 2003-2004 | Honda | Element | DX |
| 2003-2011 | Honda | Element | EX |
| 2004-2011 | Honda | Element | LX |
| 2007-2010 | Honda | Element | SC |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
