Ferrea S10103 dual valve spring Nissan 350Z VQ35DE

For: Nissan 350Z, Infinity G35, FX35 2003-2006 with VQ35DE engines

• Outside Diameter: 20.8 mm/28.0 mm
• Inside Diameter: 15.88 mm/20.8 mm
• Seat Pressure: 80 lbs @ 34 mm
• Open Pressure: 200 lbs @ 24 mm
• Rate Inch: 305 lbs
• Coil Bind: 19 mm
• Max Net Lift: 13 mm

This Spring to be used with Ferrea lightweight Valves without recess tip. This spring requires Ferrea Titanium Retainer #E11079 and Ferrea Spring Seat Locator #SL1065. (Discard OEM Spring Seat Locator).