BC0040T Dual Valve Spring Retainer Seat Kit Titanium for Honda Civic Acura RSX. Upgrade your Honda Civic or Acura RSX valvetrain with this high-performance dual valve spring kit. Designed for high-lift camshaft applications, it includes dual springs, precision-machined seats, and lightweight titanium retainers for improved RPM stability. The titanium retainers reduce valvetrain mass, helping prevent valve float at high engine speeds. Ideal for race or boosted builds, this kit delivers reliable performance under extreme conditions.

Features & Benefits
  • Dual valve spring design for increased spring pressure and stability
  • Lightweight titanium retainers for reduced valvetrain mass
  • Engineered for high-lift camshaft compatibility
  • Enhances overall engine reliability and performance in racing or boosted setups

Engine FItment: K20A K20Z F20C F22C K20A2 K20Z1 K20Z3
Max Net Lift: 0.620" / 15.75mm
Seat Pressure: 1.590" @ 92 lbs
Open Pressure: 1.100 @ 270 lbs
Coil Bind: 0.870" 



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