Supertech Dual Valve Spring 30/21.80mm (16) - 13.2lbs/mm Rate

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SKU: SPTSPR-H1021D-16
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Supertech

Supertech engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Supertech lineup with fast shipping and expert fitment support — order with confidence.

Supertech Performance Dual Valve Springs

Upgrade your engine's valvetrain with these high-performance Supertech Dual Valve Springs. Featuring a 30mm outer diameter and 21.80mm inner diameter, these springs offer a spring rate of 13.2 lbs/mm, providing superior control for aggressive camshafts and high-RPM operation. This set includes 16 springs, suitable for a wide range of performance engine applications.

Key Specifications and Advantages:

  • Dual Spring Design: Offers increased stability and control compared to single springs, reducing the risk of valve float.
  • Optimized Dimensions: Outer diameter of 30mm and inner diameter of 21.80mm ensure compatibility with many performance cylinder heads.
  • Precise Spring Rate: A rate of 13.2 lbs/mm is ideal for moderate to aggressive camshaft profiles, ensuring accurate valve seating.
  • 22mm Coil Bind Clearance: Provides ample room for valve lift without coil bind, enhancing safety and performance.
  • Durable Construction: Manufactured by Supertech using advanced metallurgy for exceptional strength and longevity under demanding conditions.

These valve springs are essential for enthusiasts seeking to improve valve control, increase redline limits, and ensure the reliability of their performance engine build. Whether for track days, drag racing, or a street-performance upgrade, they deliver consistent performance.

Find the perfect valve springs for your build at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Supertech

Supertech engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Supertech lineup with fast shipping and expert fitment support — order with confidence.

Supertech Performance Dual Valve Springs

Upgrade your engine's valvetrain with these high-performance Supertech Dual Valve Springs. Featuring a 30mm outer diameter and 21.80mm inner diameter, these springs offer a spring rate of 13.2 lbs/mm, providing superior control for aggressive camshafts and high-RPM operation. This set includes 16 springs, suitable for a wide range of performance engine applications.

Key Specifications and Advantages:

  • Dual Spring Design: Offers increased stability and control compared to single springs, reducing the risk of valve float.
  • Optimized Dimensions: Outer diameter of 30mm and inner diameter of 21.80mm ensure compatibility with many performance cylinder heads.
  • Precise Spring Rate: A rate of 13.2 lbs/mm is ideal for moderate to aggressive camshaft profiles, ensuring accurate valve seating.
  • 22mm Coil Bind Clearance: Provides ample room for valve lift without coil bind, enhancing safety and performance.
  • Durable Construction: Manufactured by Supertech using advanced metallurgy for exceptional strength and longevity under demanding conditions.

These valve springs are essential for enthusiasts seeking to improve valve control, increase redline limits, and ensure the reliability of their performance engine build. Whether for track days, drag racing, or a street-performance upgrade, they deliver consistent performance.

Find the perfect valve springs for your build at GGCRACING.

Product Details

Product Description

About Supertech

Supertech engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Supertech lineup with fast shipping and expert fitment support — order with confidence.

Supertech Performance Dual Valve Springs

Upgrade your engine's valvetrain with these high-performance Supertech Dual Valve Springs. Featuring a 30mm outer diameter and 21.80mm inner diameter, these springs offer a spring rate of 13.2 lbs/mm, providing superior control for aggressive camshafts and high-RPM operation. This set includes 16 springs, suitable for a wide range of performance engine applications.

Key Specifications and Advantages:

  • Dual Spring Design: Offers increased stability and control compared to single springs, reducing the risk of valve float.
  • Optimized Dimensions: Outer diameter of 30mm and inner diameter of 21.80mm ensure compatibility with many performance cylinder heads.
  • Precise Spring Rate: A rate of 13.2 lbs/mm is ideal for moderate to aggressive camshaft profiles, ensuring accurate valve seating.
  • 22mm Coil Bind Clearance: Provides ample room for valve lift without coil bind, enhancing safety and performance.
  • Durable Construction: Manufactured by Supertech using advanced metallurgy for exceptional strength and longevity under demanding conditions.

These valve springs are essential for enthusiasts seeking to improve valve control, increase redline limits, and ensure the reliability of their performance engine build. Whether for track days, drag racing, or a street-performance upgrade, they deliver consistent performance.

Find the perfect valve springs for your build at GGCRACING.

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