Skunk2 Ultra Series Valves: Stock Size, Standard Compression

Skunk2 Ultra Series Valves: Stock Size, Standard Compression
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    Will It Fit Your Vehicle?

    This is a universal k-series part. Vehicle specific fitment cannot be guaranteed. Please read the product description and details prior to purchase.

    Fitment Notes: Acura B17A1
    Acura B18A1, B1, C1, C5
    Honda B16A2, A3
    Honda B20B, Z


    Skunk2 Ultra Series valves are our premium line valves manufactured from HNV3 martensitic steel (IN) and EV8 austenitic steel (EX) one-piece forgings. These characteristics of the austenitic nickel based alloy enable high resistance to oxidation and corrosion and are designed for engines that output extremely high temperatures. Ultra Series Valves are heat-treated using a proprietary process for extraordinary strength and durability. Chromium Nitride coating is deposited on each valve using physical vapor deposition (PVD) process. This coating significantly improves wear and heat resistance, creating conditions for more durability and long term usage. Chromium Nitride coating is a remarkable solution as it improves the friction coefficient between the valveā€™s stem and valve guide; a necessity for engine components that demand resistance to high heat level environments. Skunk2 designs, develops, and tests its entire valvetrain lineup in-house to ensure superior quality and maximum performance gains. During development, each valvetrain component is tested both on the dyno and the road. Manufactured from the best materials available in a state-of-the-art manufacturing environment ensure that Skunk2 valvetrain components provide exceptional performance, reliability, and quality. These components remain standard-issue on each Skunk2 vehicle that we build and support.


    • Overall Valve Length: 102mm
    • Head Diameter (Intake/Exhaust): 33.00mm/ 28.00mm
    • Stem Thickness (Intake/Exhaust): 5.48mm/ 5.45mm
    • One-Piece Forged
    • Chromium Nitride Coating
    • Optimum Sealing, Airflow, And Stability
    • Heat-Treated using proprietary process
    • 16 Valves per kit


    • Part Number: 310-05-9310
    • Manufacturer: Skunk2

    Vehicle Fitment

    • Acura B17A1
      Acura B18A1, B1, C1, C5
      Honda B16A2, A3
      Honda B20B, Z
    • B-Series Engine

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