Skunk2 Ultra Series Honda/Acura Stock Size K Series VTEC Valve Set (STD Compression)

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 valve'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.

Additional Information

Ultra Series Valve Set; Stock Size; Std Compression; Dish Face-Intake 35mmx108.85mmx5.48mm/Exhaust 29mm x 108.85mm x 5.45mm; Head Dia.-Intake/Exhaust 35.00mm/30.00mm; Set of 16;

Product Overview

*FEATURES:*
• One-Piece Forged
• Chromium Nitride Coating
• Optimum Sealing, Airflow, And Stability
• Heat-Treated using proprietary process

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

• 16 Valves Per Kit
• Chromium Nitride Coating
• Head Diameter (Intake/Exhaust) 35.00mm/30.00mm
• Heat Treated Using Proprietary Process
• One Piece Forged
• Optimum Sealing Airflow And Stability
• Overall Valve Length (Intake/Exhaust) 109mm/108.6mm
• Stem Thickness (Intake/Exhaust) 5.48mm/5.45mm

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Details

Reference Information

Valvetrain, Ultra Series 35mm/28mm Standard Compression Valve Set 02-12 Honda Civic Si K-Series

Skunk2 Racing Ultra Series valves are offered in standard and high-compression versions. They are manufactured from HNV-3 martensitic steel (intake) and EV8 austenitic steel (exhaust) one-piece forgings. The characteristics of the austenitic nickel based alloy enable high resistance to oxidation and corrosion and are designed for engines that output extremely high temperatures.

Each valve is heat-treated using a proprietary process for extraordinary strength and durability, and chromium nitride coated using the physical vapor deposition (PVD) process. This coating significantly improves wear and heat resistance, as well as the friction coefficient between the valve's stem and valve guide; a necessity for engine components that demand resistance to high heat level environments. Other valves may appear similar, but only Skunk2 Racing Ultra Series valves feature specially designed valve head profiles to optimize airflow. Choose a set for your vehicle.

Features:
• Stainless steel alloy construction
• 3 to 10g lighter than stock
• Ensures optimum sealing, airflow, and stability
• Race and dyno tested