Ferrea Dual Exhaust Valve Springs (95 lb) for Nissan Skyline R33/R34 RB25DET NEO – 24-Piece Set (S10078)

Description

The design and processes on these dual valve springs are optimized to reduce valvetrain harmonics and provide greater stability on high horsepower applications. We use high grade premium super-clean PAC alloy materials and maintain tight tolerances for those unique aftermarket cylinder heads.

6 Cyl. In-Line – 24 Valve (NEO)
Dual Spring – Turbo/Special Alloy
Outside Diameter: 20.8 mm/28.0 mm
Inside Diameter: 16.51 mm/20.8 mm
Seat Pressure: 95 lbs @ 30 mm
Open Pressure: 195 lbs @ 20 mm
Rate Inch: 254 lbs
Coil Bind: 17.5 mm
Max Net Lift: 12 mm
This Spring requires Ferrea Titanium Retainer # E11048 and BOTH, Ferrea Spring Seat Locator # SL1037 (INT) and #SL1150 (EXH) AND Factory supplied Spring Seat Locator. Maximum Retainer Step 2 mm

Fitment:
1998:Nissan:Skyline (R33):2.5 RB25DET, 
1998:Nissan:Skyline (R34):2.5 RB25DET, 
1999:Nissan:Skyline (R34):2.5 RB25DET, 
2000:Nissan:Skyline (R34):2.5 RB25DET, 
2001:Nissan:Skyline (R34):2.5 RB25DET, 
2002:Nissan:Skyline (R34):2.5 RB25DET, 

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