Supertech Performance SPRK-H1002D-ST Dual Valve Spring and Titanium Retainer Kit

The Supertech Performance SPRK-H1002D dual valve spring and retainer kit is a precision-matched valvetrain upgrade designed for performance enthusiasts seeking maximum durability and high-RPM reliability. This complete kit includes dual valve springs (SPR-H1002D) paired with titanium retainers for a comprehensive valvetrain overhaul.

Key Features:

• Premium Superclean Chrome Silicon Vanadium steel alloy construction for exceptional strength and durability
• Computer-designed spring geometry ensures controlled wire stress levels and smooth harmonics at high RPM
• Dual spring configuration with 70 lbs seat pressure at 33.5mm installed height
• 170 lbs open pressure at 10mm lift with 10 lbs/mm spring rate
• Outer spring diameter: 29.05mm OD / 21.85mm ID; Inner spring: 20.5mm OD / 15.5mm ID
• Coil bind at 19.5mm; Maximum net lift: 14mm
• CNC-machined titanium retainers manufactured from military-certified titanium alloy for precise fit and reduced reciprocating mass
• Superior memory retention characteristics maintain consistent valve control over extended use

Engineered for extreme conditions, these valve springs are designed to prevent fatigue and maintain optimal valve control even under the most demanding racing applications. The premium alloy construction and computer-optimized design deliver the competitive advantage serious builders demand for high-performance engines.