Dual Interference Valve Springs
Steel or Titanium Retainers Option
Rated up to 10,000 RPM with the proper engine setup
Adds a margin of safety against over-revving or a possible mis-downshift
Designed for maximum reliability
Capable of handling both mild and aggressive camshafts
Compatible with all performance camshafts
Shot-peened for stress relief
Dual-interference Alloy* springs to control harmonics across the rev range and reduce damage from valve-drop if a spring fails.
All made in USA
*Alloy is a metal often used for highly stressed structural parts (such as aircraft landing gear) and also offers resistance to thermal fatigue.
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