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The Skunk2 Alpha Series Valves for Honda K20 and K24 engines are engineered for high-performance reliability and efficiency. Manufactured from HNV-3 martensitic steel (intake) and EV8 austenitic steel (exhaust), these one-piece forged valves deliver unmatched strength and resistance to extreme temperatures. Each valve undergoes proprietary heat treatment and hard chrome plating to reduce friction, enhance durability, and resist corrosion—making them ideal for both naturally aspirated and forced induction applications.
Skunk2’s Alpha Series Valves are designed with precision valve head profiles to maximize airflow and sealing performance, resulting in improved horsepower, throttle response, and combustion efficiency. These valves are part of Skunk2’s fully tested and race-proven valvetrain lineup, trusted in every Skunk2-built engine.
Forged One-Piece Construction for ultimate strength and reliability
HNV-3 Martensitic Steel (Intake) / EV8 Austenitic Steel (Exhaust) materials
Hard Chrome Plated Finish reduces friction and resists corrosion
Proprietary Heat Treatment increases strength and longevity
Optimized Valve Head Profile for maximum airflow and sealing
3–10g Lighter Than Stock for improved engine response
Standard Compression Dished Head Design
Compatible with OEM and Aftermarket Valve Springs
Designed and Tested In-House by Skunk2 Racing Engineers
Application: Honda K20 / K24 Engines
Valve Type: Intake / Exhaust
Head Diameter: 35.00mm (Intake) / 30.00mm (Exhaust)
Stem Diameter: 5.48mm (Intake) / 5.45mm (Exhaust)
Overall Length: 109mm (Intake) / 108.6mm (Exhaust)
Material: HNV-3 & EV8 Stainless Steel Alloy
Compression: Standard
Finish: Hard Chrome Plated
Weight: 3–10g lighter than OEM
Compatible with the following Honda engine platforms:
Honda K20 / K20A / K20Z
Honda K24 / K24A / K24Z
For the ultimate valvetrain performance and stability, Skunk2 recommends:
Alpha Series Valve Springs and Ti Retainers – 344-05-1410
Alpha Series Valve Springs – 311-05-1380
Pro XP Valve Springs – 311-05-7380
Pro Ti Retainers – 308-05-0410
Spring Bases for Dual Springs – 312-05-0010
Valve Seals (Required for Spring Base Install) – 312-05-0100
(8) Intake Valves – 35mm
(8) Exhaust Valves – 30mm
We are open Monday-Friday from 8am-6pm EST
Yes, customers located in and around the the Piedmont area are welcome to pick up their items from our retail location during normal business hours. Our address is:
Elite Race Fab
1514 Holbrook St Suite D-F
Greensboro, NC 27403
Elite Race Fab offers free ground shipping & handling to our retail customers within the lower 48 contiguous United States on most orders totaling $159.99 and higher, when the item being purchased is not a Freight/LTL item! Orders under $159.99 will be subject to a nominal $13.99 Flat shipping charge. Some exceptions and/or exclusions apply, in those scenarios you will be advised of any additional charges in the item details/description stating shipping exclussions/freight shipping required etc.
In regards to expedited and international shipping each order will need to be quoted on a case by case basis. You can obtain a quote two ways:
- From your shopping cart select "Request a Quote" prior to placing your order. We will review your proposed order and promptly respond with shipping estimates.
- Complete your order ahead of time indicating either expedited or international shipping during the checkout process. We will promptly determine shipping rates for your order and email you for approval and additional payment.
-Give us a call and we can ensure your item is shipped right then, to ensure you have it in time for your deadline.
We have been committed to offering all of our customers the lowest pricing throughout our website day in and day out. We value your business so much that we go a step further than our competitors. We use a third party software that proactively monitors all our competitor's websites/pricing so that we can make adjustments accordingly if needed to have the lowest prices. Thats right, no need to spend hours searching for the lowest prices, as ours will be the lowest.
As far as price matching, we dont want to write a check we cant cash, but we certainly want to earn your business. With that said, we will go above and beyond to match our competitor's pricing when it is needed. Simply email us, click the live contact button, or give us a call and be sure to have a link to our competitor's site and please factor in any shipping and handling their website will be charging. We will then ensure you get the lowest price, and either match or beat their pricing.
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