Ferrea RB25 Dual Valve Spring Kit (10.5mm Max Lift) - Set of 24
$548.88
NISSAN SKYLINE (1993 - 1997) (RB25DET) DUAL VALVE SPRINGS
6 Cyl. In-Line - 24 Valve - (RB25DET)
Type/Material/Application:Dual Spring - Turbo/Special Alloy/INTAKE ASSEMBLY
Outside Diameter:20.8 mm/28.0 mm
Inside Diameter: 16.51 mm/20.8 mm
Seat Pressure: 110 lbs @ 30.55 mm
Open Pressure: 215 lbs @ 20.55 mm
Rate Inch: 266 lbs
Coil Bind: 18 mm
Max Net Lift: 10.5 mm
This Spring requires Ferrea Titanium Retainer # E11082 and Ferrea Spring Seat Locator #SL1068 (EXH Side) and Ferrea Spring Seat Locator #SL1069 (INT Side). (Discard OEM Spring Seat Locator) WARNING: DUE TO VALVETRAIN ASSEMBLY INSTALLLED HEIGHTS, MAXIMUM VALVE NET LIFT MUST NOT EXCEED 10.5 MM BECAUSE OF VALVE SEAL TO SPRING RETAINER CLEARANCES.
Legal only for use in competition vehicles which may never be registered, licensed, and/or used on public streets or highways; and also for use in other exempted vehicles.