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The Skunk2 Racing Alpha Valve Spring Set, part number skk311-05-1380, is engineered specifically for Honda and Acura K-series VTEC engines, providing exceptional valvetrain stability at high RPMs. Manufactured exclusively from super-clean chrome-silicone wire milled in Japan, these springs are designed to withstand demanding racing conditions and extended engine use. The combination of inner and outer springs, coupled through a slight interference fit and differing frequencies, effectively prevents valve float and maintains stability beyond 10,000 rpm, making them ideal for high-performance applications.
Each set includes 16 springs that feature a seat pressure of 62 lbs at 1.975 inches and an open pressure of 220 lbs at 1.100 inches. The coil bind is set at 1.000 inches, ensuring optimal performance without risking coil damage or loss of control during aggressive engine operation. Skunk2 designs, develops, and rigorously tests all its valvetrain components in-house, utilizing both dyno and real-world testing on engines reaching 17,000 rpm, including drag racing engines. This meticulous process guarantees that each part provides maximum performance, durability, and reliability.
Suitable for Honda CR-V models from 2002 to 2006, this set enhances engine stability during high RPM operation, supporting aggressive tuning and racing setups. The Alpha Series springs are manufactured from premium materials, ensuring consistent quality and long-term durability. They are a vital upgrade for enthusiasts seeking to push their engine’s limits while maintaining stock-like reliability and performance. The product complies with Prop 65 regulations and is not carb-approved, making it suitable for off-road and racing applications where legal compliance is not required.
Features:
Fitment:
2002 Acura RSX Base
2002 Acura RSX Type-S
2002 Honda Civic Si
2002 Honda CR-V EX
2002 Honda CR-V LX
2003 Acura RSX Base
2003 Acura RSX Type-S
2003 Honda Accord DX
2003 Honda Accord EX
2003 Honda Accord LX
2003 Honda Civic Si
2003 Honda CR-V EX
2003 Honda CR-V LX
2003 Honda Element DX
2003 Honda Element EX
2004 Acura RSX Base
2004 Acura RSX Type-S
2004 Acura TSX Base
2004 Honda Accord DX
2004 Honda Accord EX
2004 Honda Accord LX
2004 Honda Civic Si
2004 Honda CR-V EX
2004 Honda CR-V LX
2004 Honda Element DX
2004 Honda Element EX
2004 Honda Element LX
2005 Acura RSX Base
2005 Acura RSX Type-S
2005 Acura TSX Base
2005 Honda Accord DX
2005 Honda Accord EX
2005 Honda Accord LX
2005 Honda Accord SE
2005 Honda Civic Si
2005 Honda CR-V EX
2005 Honda CR-V LX
2005 Honda CR-V SE
2005 Honda Element EX
2005 Honda Element LX
2006 Acura RSX Type-S
2006 Acura TSX Base
2006 Honda Accord EX
2006 Honda Accord LX
2006 Honda Accord LX Special Edition
2006 Honda Accord Value Package
2006 Honda Civic Si
2006 Honda CR-V EX
2006 Honda CR-V LX
2006 Honda CR-V SE
2006 Honda Element EX
2006 Honda Element LX
2007 Acura TSX Base
2007 Honda Accord EX
2007 Honda Accord EX-L
2007 Honda Accord LX
2007 Honda Accord Special Edition
2007 Honda Accord Value Package
2007 Honda Civic Si
2007 Honda CR-V EX
2007 Honda CR-V EX-L
2007 Honda CR-V LX
2007 Honda Element EX
2007 Honda Element LX
2007 Honda Element SC
2008 Acura TSX Base
2008 Honda Civic Si
2008 Honda CR-V EX
2008 Honda CR-V EX-L
2008 Honda CR-V LX
2008 Honda Element EX
2008 Honda Element LX
2008 Honda Element SC
2009 Honda Civic Si
2009 Honda CR-V EX
2009 Honda CR-V EX-L
2009 Honda CR-V LX
2009 Honda Element EX
2009 Honda Element LX
2009 Honda Element SC
2010 Honda Civic Si
2010 Honda Element EX
2010 Honda Element LX
2010 Honda Element SC
2011 Honda Element EX
2011 Honda Element LX
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
