Supertech Performance SPR-H200DR-16 Dual Valve Spring Set - 16 Springs for Honda B16A B17A B18C

These precision-manufactured springs are designed for performance enthusiasts demanding superior valvetrain control in high-RPM racing applications.

Key Specifications:

• Type: Dual valve spring design with inner and outer springs
• Outer spring OD: 30.2mm / Inner spring OD: 22.2mm
• Outer spring ID: 22.2mm / Inner spring ID: 16.8mm
• Seat pressure: 100 lbs @ 33.5mm installed height
• Open pressure: 222 lbs @ 10mm lift
• Maximum lift: 13.0mm
• Coil bind: 20.0mm
• Spring rate: 12.2 lb/in
• Recommended retainer: RET-K20A2/T2 with OEM seat or SEAT-H1002D (sold separately)

Performance Features:

• Crafted from premium Superclean Chrome Silicon Vanadium Steel alloy for exceptional durability
• Gas nitriding process before shot peening for improved fatigue life
• Designed to maintain optimal wire stress levels and controlled harmonics
• Engineered for high-RPM stability and longevity under extreme racing conditions

This set includes 16 valve springs for a complete engine valvetrain overhaul. Supertech valve springs provide the precision engineering and reliability needed for drag racing, road racing, and other high-performance motorsport applications.