Conical Valve Springs 23.20mm 8LBS 16.60MM ID SuperTech for Ford Ecoboost BMW B58 N54 N55 S55 S63 1pcs

Supertech Beehive Valve Springs

All Supertech valve springs are manufactured using premium Superclean Chrome Silicon Vanadium Steel alloy, engineered for high RPM durability and long-lasting performance. This premium alloy provides excellent structural memory, minimizing fatigue and helping your valvetrain maintain peak operation under stress.

Every Supertech valve spring is computer-designed to keep wire stress levels within the fatigue limits and control harmonics at high RPM. We utilize advanced simulation and precision engineering to ensure each spring delivers reliable load characteristics, making them ideal for demanding street and race applications.

This spring features a beehive profile designed to reduce valvetrain mass and improve high-RPM stability. Its specifications include a spring rate of 8lbs/mm, a coil bind height of 23.20mm, and outer diameters of nan (top) and nan (bottom).

Features

• Beehive profile improves stability and reduces mass
• 8lbs/mm spring rate ensures optimal valve control
• 23.20mm coil bind height for high-lift compatibility
• nan top OD and nan bottom OD for precise seat and retainer fit
• Premium chrome silicon vanadium alloy for extreme durability

Benefits

• Enhanced RPM range and valvetrain control
• Extended spring life and reliability under high loads
• Reduced valve float and improved engine response
• Ideal for high-performance, turbocharged, and endurance applications

Specs

• Outer Spring Id: 17.60mm
• Inner Spring Od: 21.00mm
• Inner Spring Id: 14.20mm
• Coil Bind: 23.20mm
• Rate: 8lbs/mm

Engines

• BMW B38B15
• BMW B48
• BMW B58B30
• BMW N54 Turbo
• BMW N55 Turbo
• BMW S55 Turbo
• BMW S63B44
• Ford Ecoboost 6cyl 3.5
• Ford Ecoboost DI 2.0
• Ford Ecoboost DI 2.3
• Mini B48
• Toyota B58B30

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