Ferrea Dual Valve Spring, Titanium Retainers, Seats - RB25 NEO

Ferrea Dual Valve Spring, Titanium Retainers, Seats - RB25 NEOFerrea Dual Valve Spring Kit for the R34 Nissan RB25DET NEO engines. This kit includes 24x Dual Valve Springs, 24x Spring Seat Locators and 24x Titanium Retainers. Valve SpringsMaterial: Speical AlloyInner OD: 20.8 mmOuter Chrome Silicon: 28.0 mmSeat Press: 95 lbs @ 30mmOpen Press: 195 lbs @ 20mmMax Lift: 12 mmRetainersMaterial: TitainumValve stem size: 6 mmDiameter: 25.4 mmInn. step diameter: 16.51 mm Spring Seat Locators Special AlloyThese components come sold as a kit, as they must be used with all other Ferrea valvetrain components.