X20XEV Opel dual valve springs kit with retainers - NJ performance

Description

X20XEV Dual Valve Springs Kit – High RPM & Turbo Performance Upgrade

The X20XEV Dual Valve Springs Kit is designed for high-performance naturally aspirated and turbocharged engine builds. It provides superior valve control at elevated engine speeds and significantly reduces the risk of valve float under high boost and high RPM conditions.

This kit combines dual valve springs with lightweight steel retainers and dedicated locators to deliver maximum reliability in both street and motorsport applications.

With the correct supporting modifications, engine speed can be safely increased to 9000 RPM while maintaining excellent valve stability and control.

The dual spring design also adds an important safety margin against accidental over-revving caused by missed upshifts or downshifts.

Benefits

• Prevents valve float at high RPM
• Suitable for turbocharged applications
• Supports engine speeds up to 9000 RPM*
• Increased protection against over-revving
• Excellent reliability for street and racing use
• Lightweight steel retainer design improves valve train control

*Requires appropriate supporting engine modifications.

Kit Contents

• 16 outer valve springs
• 16 inner valve springs
• 16 lightweight steel retainers
• 16 spring locators

Technical Specifications

Installed Height Pressure

• 35.5 kg

Pressure at 10 mm Valve Lift

• 70 kg

Maximum Lift

• 14.8 mm

Maximum Recommended Safe Lift

• 13 mm

Applications

Suitable for high-performance street cars, track cars, drag racing, and turbocharged engine builds where maximum valve train stability is required.

Shipping

Price includes DHL Express delivery (1–3 working days).