Skunk2 (311-05-1360) Alpha Series Valve Spring Set

Engine Compatibility

The Skunk2 Alpha Series Valve Spring Set is commonly used with Honda K-Series engines, including:

• K20A / K20A2

• K20Z variants

• K24 performance builds (depending on setup)

Typical applications include:

• Acura RSX Type-S

• Honda Civic Si

• Acura TSX

⚠ Always confirm compatibility with your specific cylinder head and camshaft profile.

Manufactured exclusively from super-clean, chrome-silicone wire milled in Japan, Skunk2’s Alpha Valve Springs for Honda’s F, H-series VTEC engines are a product of the company’s years of racing and engine building experiences.

Key Features

Increased Seat Pressure

Helps maintain proper valve control under aggressive cam lift and high engine speeds.

High-RPM Stability

Prevents valve float in engines operating at elevated RPM ranges.

Precision Manufacturing

Skunk2 Alpha Series springs are designed for durability and consistent performance.

Designed for Performance Camshafts

Ideal for use with Skunk2 Stage 2, Stage 3, and Pro Series camshafts.

By using inner and outer springs mated together through a slight interference fit and with differing frequencies, Alpha Valve Springs are able to prevent valve float and maintain valve train stability at engine speeds in excess of 10,000 rpm

Why Upgrade Valve Springs?

Performance camshafts increase lift and duration, which places additional stress on the valvetrain. Without stronger springs, engines can experience:

• Valve float

• Loss of power at high RPM

• Inconsistent valve timing

• Potential engine damage

Upgraded valve springs ensure that the valves follow the cam profile accurately, even under extreme conditions.

Why Choose this Skunk2 311-05-1360 Valve Spring Set?

Skunk2 Alpha Series components are engineered for enthusiasts who demand reliability and performance from their engines. The valve spring set provides:

• Improved valvetrain stability

• Compatibility with aggressive cam profiles

• Durable construction for high-performance applications

• Proven reliability in Honda performance builds

For builders upgrading camshafts, installing the proper valve springs is one of the most important steps in creating a reliable high-RPM engine.

Seat Pressure: 50 pounds at 1.400″, Open Pressure: 205 lbs. at 0.900″, Coil Bind: 0.880″
For Honda F-series and H-Series

Ideal Build Applications

The Skunk2 Alpha Series Valve Spring Set is commonly used in:

✔ Naturally aspirated high-RPM builds
✔ Turbocharged K-series engines
✔ Track and race applications
✔ Engines running aggressive camshaft profiles

For many builders, valve spring upgrades are considered mandatory when installing aftermarket camshafts.

Skunk2 311-05-1360 Valve Spring Set Installation Notes

Proper installation is critical for valvetrain reliability:

• Verify installed spring height

• Check coil bind clearance

• Inspect retainers and valve locks

• Replace valve seals during installation

• Perform cam timing setup after assembly

Taking the time to properly set up the valvetrain ensures the engine performs reliably under high load and high RPM.