Skunk2 Alpha Series Honda/Acura Stock Size B Series VTEC Valve (Standard Compression)
Skunk2 Alpha Series Honda/Acura Stock Size B Series VTEC Valve (Standard Compression)
Description
Skunk2 Alpha Series Honda/Acura Stock Size B Series VTEC Valve (Standard Compression)
Skunk2 Alpha Series valves are manufactured from HNV3 martensitic steel (IN) and EV8 austenitic steel (EX) one-piece forgings, each valve is heat-treated using a proprietary process for extraordinary strength and durability. Alpha Series Valves feature hard chrome plating and fully machined valve heads. Other valves may appear similar, but only Alpha Series Valves feature specially designed valve head profiles to optimize airflow. 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
Alpha Series Valve Set; Stock Size; Std Compression; Dish Face-Intake 33mmx102.5mmx5.48mm/Exhaust 28mm x 102.5mm x 5.45mm; Head Dia.- Intake/Exhaust 33.00mm/28.000mm; Set of 16;
Product Overview
Skunk2 Alpha Series valves are manufactured from HNV3 martensitic steel (IN) and EV8 austenitic steel (EX) one-piece forgings, and each valve is heat-treated using a proprietary process for extraordinary strength and durability. Alpha Series Valves feature hard chrome plating and fully machined valve heads. Other valves may appear similar, but only Alpha Series Valves feature specially designed valve head profiles to optimize airflow.
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.
*FEATURES:*
⢠One-Piece Design
⢠Stainless-Steel Alloy Construction
⢠3-10g Lighter Than Stock
⢠Proprietary Heat Treatment
⢠Optimum Sealing, Airflow, And Stability
⢠Standard-Compression and High-Compression Valves Available
| Additional Application Notes | |
|---|---|
| • Stock Size; Std Compression; Dish Face-Intake 33mmx102.5mmx5.48mm/Exhaust 28mm x 102.5mm x 5.45mm; Head Dia.- Intake/Exhaust 33.00mm/28.000mm; Set of 16 | |
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.
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 09:20:29
Features
- 3-10g Lighter Than Stock
- Head Diameter (Intake/Exhaust) 33.00mm/ 28.00mm
- High-Compression Valves Available
- One-Piece Design
- Optimum Sealing/Airflow/Stability
- Overall Valve Length 102mm
- Proprietary Heat Treatment
- Stainless-Steel Alloy Construction
- 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.
Specifications
Product Details
| Description: | Alpha Series Valve Set |
| Exhaust: | 28mm x 102.5mm x 5.45mm |
| Head Diameter (Intake/Exhaust): | 33.00mm/28.000mm |
| Intake: | 33mmx102.5mmx5.48mm |
| Part Number: | skk310-05-1310 |
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Skunk2 Racing, Skunk 2 |
| StreetFX SKU | skk310-05-1310 |
| SFX Item ID | 4442333 |
| Accounting SKU | skk-310-05-1310 |
| Manufacturer SKU | 310-05-1310 |
| Manufacturer UPC | 873265003884 |
| Alternative References | SK2-310-05-1310 |
Valvetrain, Alpha Series 33mm/28mm Standard Compression Valve Set 99-00 Honda Civic Si B-Series
Skunk2 Racing Alpha 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. Each valve is heat-treated using a proprietary process for extraordinary strength and durability, and then hard chrome plated to further increase strength, reduce friction, and increase corrosion resistance. Other valves may appear similar, but only Skunk2 Racing Alpha 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
• Fully machined valve heads
| Product Attributes | |
|---|---|
| UPC | 873265003884 |
| Brand | Skunk 2 |
| Quantity | Sold as a set. |
| Part Type | Valves |
| Product Line | Skunk2 Racing Alpha Series Valves |
| Undercut Stem | No |
| Swirl-Polished | No |
| Valve Material | HNV-3 martensitic steel/EV8 stainless steel |
| Valve Position | Intake/Exhaust |
| Valve Head Style | Dished |
| Lock Groove Quantity | 1-groove |
| Manufacturer's Part Number | 310-05-1310 |
| Intake Valve Head Diameter (mm) | 33.000mm |
| Intake Valve Stem Diameter (mm) | 5.48mm |
| Exhaust Valve Head Diameter (mm) | 28.000mm |
| Exhaust Valve Stem Diameter (mm) | 5.45mm |
| Intake Overall Valve Length (mm) | 102.000mm |
| Intake Valve Head Diameter (in.) | 1.300 in. |
| Intake Valve Stem Diameter (in.) | 0.215 in. |
| Exhaust Overall Valve Length (mm) | 102.000mm |
| Exhaust Valve Head Diameter (in.) | 1.102 in. |
| Exhaust Valve Stem Diameter (in.) | 0.214 in. |
| Intake Overall Valve Length (in.) | 4.016 in. |
| Exhaust Overall Valve Length (in.) | 4.016 in. |
Compatibility
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