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 |  SKU: SPR-H1005D-16

Supertech Dual Valve Spring Kit

Honda H22A VTEC
$499.95
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Description

All Supertech valve springs are manufactured using premium Superclean Chrome Silicon Vanadium Steel alloy, engineered for high RPM durability and long-lasting performance. This premium alloy provides excellent structural memory, minimizing fatigue and helping your valvetrain maintain peak operation under stress.

Every Supertech valve spring is computer-designed to keep wire stress levels within the fatigue limits and control harmonics at high RPM. The dual spring configuration (inner + outer) is engineered to improve stability and harmonic damping for reliable valve control in demanding street and race applications.

This spring features a dual spring configuration designed to enhance valvetrain stability and reduce the risk of valve float at high RPM. Its specifications include a spring rate of 11.50lbs/mm, a free length of 45mm, a coil bind height of 20.70mm, an outer spring ID of 21.85mm, and inner spring dimensions of 20.50mm OD and 15.50mm ID.

Features and Benefits

  • Dual spring design improves stability and harmonic control
  • 11.50lbs/mm spring rate ensures optimal valve control
  • 45mm free length for proper installed-height tuning
  • 20.70mm coil bind height for high-lift compatibility
  • Nested spring geometry for correct seat and retainer fit: 21.85mm outer spring ID, 20.50mm inner spring OD, 15.50mm inner spring ID
  • Premium chrome silicon vanadium alloy for extreme durability
  • Improved high-RPM valve control with added harmonic damping
  • Extended spring life and reliability under high loads
  • Reduced valve float and improved engine response
  • Ideal for high-performance, turbocharged, and endurance applications

Technical Specifications

  • Rate: 11.5lbs/mm
  • Coil Bind: 20.70mm
  • Free Length: 45mm
  • Quantity: 16

Fitment Table