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These valve springs are designed for boosted builds and will handle between 350-700 (boosted) & 200-350 (N/A) horsepower. Both sets are designed for standard fitment using original platform shims and retainer setups.
- Material: EN 10270-2 SiCr
- Wire Diameter: 4.10mm
- Outside Diameter: 29.90mm
- Free Length: 49.61mm
- Solid Length: 25.83mm
- Inside Diameter Min: 21.70mm
Please note that these are sold in a pack of 8.