Supertech Performance SPR-H1003S-16 Single Valve Spring Set Honda D-Series - 16-Piece

The Supertech SPR-H1003S-16 is a single valve spring set designed for Honda D-Series SOHC non-VTEC engines including D15B and D16A applications. This set includes 16 valve springs only (retainers not included). Upgrading your valve springs is an effective way to help your engine rev higher and improve performance.

Key Specifications:

• Seat Pressure: 68 lbs @ 41.15mm
• Open Pressure: 167 lbs @ 10mm
• Maximum Lift: 14.20mm
• Coil Bind: 27.30mm
• Spring Inner Diameter: 16.30mm (0.642")
• Spring Rate: 9.9 lbs/mm
• Single spring design (not dual)

Performance Features:

• Manufactured from premium Superclean Chrome Silicon Vanadium Steel for higher performance, durability and better memory at high RPMs
• Computer-designed to ensure wire stress levels remain within optimal fatigue limits for excellent durability under extreme conditions
• Computerized engineering ensures harmonics are well controlled
• Increases airflow and engine RPM capability when upgrading valve train components

Supertech fuses cutting-edge technology with over 30 years of experience in creating high-performance valves and valve train components, providing the racing market with superior components for virtually every type of racing.