Supertech SPRK-2081/RB25 Single Valve Springs Kit RB25DET HYDRAULIC Image1
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Supertech Single Valve Springs Kit RB25DET HYDRAULIC

  • Chrome Silicon Vanadium

  • Computer designed

  • High durability

Supertech SPRK-2081/RB25 Single Valve Springs Kit RB25DET HYDRAULIC
List Price: $706.85
$565.48  Save 20%
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Product Details

​Supertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.


  • For Hydraulic Lifter
  • Outer Spring O.D.: 27.50mm
  • Outer Spring I.D.: 20.00mm
  • Seat: 85 @ 30.6 ([email protected])
  • Open (lift): 171 @ 9  ([email protected])
  • Max net lift: 9.90mm
  • Coil bind: 20.70mm
  • Rate: 9.60 lbs/mm
Retainer P/N: RET-NVG1015/T1 (24) + Intake OE seat (12 for Intake) + Exhaust SS-2820-E+OE (12 for Exhaust)

Note: This is for a complete set of single intake and exhaust valve springs. Retainers and spring seats are included if they are part of the kit.

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Vehicle Applications

Years Make Model Trim Chassis Engine Notes
1995 - 1998 Nissan Skyline   (R33) RB25DE  
1989 - 1994 Nissan Skyline   (R33) RB25DET  
ALL - ALL Nissan 240SX        
ALL - ALL Nissan 180SX        
ALL - ALL Nissan SILVIA        
ALL - ALL Nissan 200SX (NON-US)