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

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

Ferrea 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 Springs

Material: Speical Alloy

Inner OD: 20.8 mm

Outer Chrome Silicon: 28.0 mm

Seat Press: 95 lbs @ 30mm

Open Press: 195 lbs @ 20mm

Max Lift: 12 mm

Retainers

Material: Titainum

Valve stem size: 6 mm

Diameter: 25.4 mm

Inn. step diameter: 16.51 mm 

Spring Seat Locators Special Alloy

These components come sold as a kit, as they must be used with all other Ferrea valvetrain components.