Supertech Performance SPR-H1002S-16 Single Valve Spring Set - 16 Pack Honda D-Series

Manufactured from premium Superclean Chrome Silicon Vanadium Steel Alloy for superior performance and durability at high RPM ranges, these valve springs deliver the reliability and performance demanded by racing applications and performance builds.

Key Specifications:

• Outer diameter: 0.895 inches with coil bind at 34.60mm
• Seat pressure: 60 lbs at 49.5mm installed height
• Open pressure: 166 lbs at 12.50mm
• Spring rate: 8.5 lbs/mm
• Maximum net lift: 14.9mm
• Single spring design (no inner spring)

Performance Benefits:

• Superior material memory translates into higher performance
• Computer-designed to ensure wire stress levels remain within safe limits for long-term durability under extreme conditions
• Computer software controls harmonics for consistent valve control
• Reduces valve float at high RPM for improved engine performance
• Ideal for performance street builds, drag racing, and road racing applications

This complete 16-spring set provides everything needed for a full cylinder head rebuild on Honda D15B, D16Z6, D16Y6, D16Y7, D16Y8, and D17A engines. Supertech Performance is recognized as an industry leader in valve train components, delivering precision-engineered solutions for serious performance enthusiasts.