Supertech Valve Springs Retainers RSX-S K20 K20a K20a2 K20z1 K20z3 SPRK-H1021D

  • $427.97
    Unit price per 


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



  • (16) 95 lb Dual valve springs
  • (16) Spring Seats
  • (16) Titanium Retainers

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