Skunk2 Racing Alpha Series Honda D Series VTEC Valve Spring Set Part Number 311-05-1345

Manufactured exclusively from super-clean, chrome-silicone wire milled in Japan, Skunk2's Alpha Valve Springs for Honda's D-series VTEC engines are a product of the company's years of racing and engine building experiences. Alpha Valve Springs are able to prevent valve float and maintain valvetrain stability at engine speeds in excess of 10,000 rpm. 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, including 11,000 rpm drag racing engines and 17,000 rpm superbikes. Manufactured from the best materials available, Skunk2 valvetrain components provide exceptional performance, reliability, and quality and remain standard-issue on each Skunk2 vehicle that we build and support. Alpha Series Valve Spring Set; Seat Pressure 165 Lbs At 1.500 in.; Open Pressure 585 lbs.; Set of 16;

• Prevents Valve Float/Maintain Valvetrain Stability +10000rpm
• Manufactured From Super-Clean Chrome-Silicone Wire
• Open Pressure 158 lbs.
• Seat Pressure 62 lbs.
• Set of 16

Upgrade your Honda D-series VTEC engine with the Skunk2 Racing Alpha Series Valve Spring Set, engineered for performance and reliability. Crafted from super-clean chrome-silicone wire milled in Japan, these valve springs are designed to prevent valve float and maintain valvetrain stability at engine speeds exceeding 10,000 rpm. Each spring is tested extensively on dynos and real-world conditions, including high-rev drag racing and superbike scenarios, ensuring durability and optimal performance. The Alpha Series springs feature a seat pressure of 165 pounds at 1.500 inches and open pressure of 585 pounds, providing a precise balance of control and power for high-performance applications. This set of 16 springs is an ideal upgrade for enthusiasts seeking to push their Honda D-series engines beyond stock limits while maintaining engine longevity and consistent operation.

Features:

• Prevents valve float and maintains valvetrain stability at engine speeds over 10,000 rpm

• Manufactured from high-quality, super-clean chrome-silicone wire for durability and performance

• Open pressure of 585 pounds provides aggressive valve control during high RPM operation

• Seat pressure of 165 pounds ensures reliable valve seating under demanding conditions

• Set of 16 springs designed specifically for Honda D-series VTEC engines for comprehensive upgrade

Fitment:
1986 Acura Integra LS
1986 Acura Integra RS
1987 Acura Integra LS
1987 Acura Integra LS Special Edition
1987 Acura Integra RS
1987 Honda Wagovan DX
1988 Acura Integra LS
1988 Acura Integra LS Special Edition
1988 Acura Integra RS
1988 Honda Civic DX
1988 Honda Civic LX
1988 Honda Civic RT 4WD
1988 Honda CRX DX
1988 Honda CRX Si
1989 Acura Integra LS
1989 Acura Integra RS
1989 Honda Civic DX
1989 Honda Civic LX
1989 Honda Civic RT 4WD
1989 Honda Civic Si
1989 Honda CRX Base
1989 Honda CRX Si
1990 Honda Civic DX
1990 Honda Civic EX
1990 Honda Civic LX
1990 Honda Civic RT 4WD
1990 Honda Civic Si
1990 Honda CRX Base
1990 Honda CRX HF
1990 Honda CRX Si
1991 Honda Civic DX
1991 Honda Civic EX
1991 Honda Civic LX
1991 Honda Civic RT 4WD
1991 Honda Civic Si
1991 Honda CRX Base
1991 Honda CRX HF
1991 Honda CRX Si
1992 Honda Civic CX
1992 Honda Civic DX
1992 Honda Civic EX
1992 Honda Civic LX
1992 Honda Civic Si
1992 Honda Civic VX
1993 Honda Civic CX
1993 Honda Civic DX
1993 Honda Civic EX
1993 Honda Civic LX
1993 Honda Civic Si
1993 Honda Civic VX
1993 Honda Civic del Sol S
1993 Honda Civic del Sol Si
1994 Honda Civic CX
1994 Honda Civic DX
1994 Honda Civic EX
1994 Honda Civic LX
1994 Honda Civic Si
1994 Honda Civic VX
1994 Honda Civic del Sol S
1994 Honda Civic del Sol Si
1995 Honda Civic CX
1995 Honda Civic DX
1995 Honda Civic EX
1995 Honda Civic LX
1995 Honda Civic Si
1995 Honda Civic VX
1995 Honda Civic del Sol S
1995 Honda Civic del Sol Si
1996 Honda Civic CX
1996 Honda Civic DX
1996 Honda Civic EX
1996 Honda Civic LX
1996 Honda Civic del Sol S
1996 Honda Civic del Sol Si
1997 Honda Civic CX
1997 Honda Civic DX
1997 Honda Civic EX
1997 Honda Civic LX
1997 Honda Civic del Sol S
1997 Honda Civic del Sol Si
1998 Honda Civic CX
1998 Honda Civic DX
1998 Honda Civic EX
1998 Honda Civic LX
1999 Honda Civic CX
1999 Honda Civic DX
1999 Honda Civic EX
1999 Honda Civic LX
1999 Honda Civic Value Package
2000 Honda Civic CX
2000 Honda Civic DX
2000 Honda Civic EX
2000 Honda Civic LX

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1