Vehicle Fitment
- 2002–2006 Honda Civic Si (K20A2)
- 2002–2006 Acura RSX Type-S (K20A2)
- 2007–2011 Honda Civic Si (K20Z3)
Features
- Designed for high RPM applications
- Manufactured from high-grade chrome silicone alloy
- Proprietary processing procedures for consistent pressures
- Dual spring design for enhanced valve control
- Premium grade 6AL4V titanium retainers
- Compatible with high-lift camshafts (e.g., BC0047/BC0047-2)
- Free length: 2.030 inches
- Seat pressure: 1.590 inches @ 92 lbs
- Open pressure: 1.020 inches @ 270 lbs
- Coil bind height: 0.870 inches
- Net cam lift: 0.620 inches / 15.74 mm
Specifications
- Material: Chrome silicone alloy springs, 6AL4V titanium retainers
- Free Length: 2.030 inches
- Seat Pressure: 1.590 inches @ 92 lbs
- Open Pressure: 1.020 inches @ 270 lbs
- Coil Bind: 0.870 inches
- Net Cam Lift: 0.620 inches / 15.74 mm
- Retainer: BC2010
- Spring Seat: BC2904
Included Components
- 16x Dual valve springs
- 16x 6AL4V titanium retainers (BC2010)
- 16x Spring seats (BC2904)
- Installation instructions
Product Description
The Brian Crower BC0040T Dual Valve Spring & Titanium Retainer Kit is engineered for high-performance applications in Honda's K20A2 and K20Z3 engines, commonly found in the 2002–2011 Civic Si and 2002–2006 Acura RSX Type-S models. This kit is designed to handle high RPMs, making it ideal for street/strip builds and high-performance applications.
Manufactured from high-grade chrome silicone alloy, the springs feature proprietary processing procedures to ensure consistent pressures and durability. The dual spring design enhances valve control, while the premium 6AL4V titanium retainers provide added strength and reduced weight for high-performance applications.
With a free length of 2.030 inches, seat pressure of 92 lbs at 1.590 inches, and open pressure of 270 lbs at 1.020 inches, the BC0040T kit offers optimal performance for aggressive camshaft profiles. The coil bind height is set at 0.870 inches, accommodating substantial cam lift without compromising reliability.
The kit is compatible with high-lift camshafts such as the BC0047 and BC0047-2, making it a versatile choice for performance enthusiasts. Whether you're building a high-performance street engine or a dedicated race engine, the BC0040T provides the necessary valve control to support your performance goals.
