Performance Springs Nissan SR20 Valve Spring Kit
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Valve Spring Set for Nissan SR20 Engines
This single-spring pack is suited to SR20DE/DET cylinder heads and provides additional spring force for applications running increased RPM or moderate turbocharging. The specification supports up to 12 mm valve lift using stock retainers.
Spring Characteristics
- Seat Pressure: 80–85 lbs
- Open Pressure: 180 lbs at 12 mm lift
- Configuration: Simple drop-in
The spring profile is optimized to limit resonance and maintain valve stability under high-cycle conditions.
| Product Name | Performance Springs Nissan SR20 Valve Spring Kit |
|---|---|
| Brands | Performance Springs |
| Engine | SR20 |
| Make | Nissan |
Delivery & Freight
We are an Australian-based company that ships items nationally and internationally, usually within 48 hours of receiving your order. High-value items shipped internationally are sent via DHL Express, while lower-value items are sent via Australia Post Express unless otherwise instructed.
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Disclaimer:
Product images are for description purposes only. Actual product may vary.
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What information do I need to match these pistons to my engine?
You need the engine code, bore size, stroke, rod length, pin diameter and target compression ratio. These determine the correct piston compression height and crown design.
How should ring gaps be set for these pistons?
Ring gaps must be set by your engine builder based on fuel type, boost level and the intended rpm range. Forced-induction engines usually require larger gaps.
Are forged pistons suitable for street engines?
Yes. Forged pistons handle detonation and high cylinder pressure better than cast units. Your builder should set the piston-to-bore clearance to suit your application.
What is the seat tension for the SR20 valve springs in this kit?
The seat tension for the valve springs in the Nissan SR20 Valve Spring Kit is between 80 to 85 lbs. This ensures optimal performance and reliability under high-stress conditions.
What is the open tension at maximum lift for these valve springs?
The open tension for the valve springs is 180 lbs at a 12mm valve lift. This specification is crucial for maintaining valve control at higher RPMs.
Can I use stock retainers with these valve springs?
Yes, the Nissan SR20 Valve Spring Kit is designed for simple drop-in installation using stock retainers, making it easy to upgrade without additional modifications.
Are these valve springs suitable for high-performance applications?
Absolutely. These valve springs are engineered for performance enthusiasts, providing the necessary tension and durability for high-performance SR20 applications.
Do I need to modify my engine to install these valve springs?
No modifications are necessary for installation. The valve springs are designed to fit directly with stock components, allowing for a straightforward upgrade process.
