PAC Racing Springs 1200 Series 1.645 OD Triple Valve Spring — Extreme Drag Racing

SKU: DHDL_PAC-1248-1
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About PAC Racing Springs PAC Racing Springs engineers high-quality automotive ...Read More

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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 PAC Racing Springs

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

Watch in action

Unmatched Valvetrain Control for High-Output Engines

For engines pushing the boundaries of performance, the PAC Racing Springs 1200 Series 1.645 OD Triple Valve Spring offers the ultimate in valvetrain control. Designed specifically for the extreme demands of drag racing, this triple-spring setup provides the massive seat and open pressures required to keep valves stable at incredibly high RPMs.

Performance Specifications

  • Series: 1200 Series Drag Race
  • Design: Triple Spring configuration
  • Spring Rate: 687 lb/in
  • Coil Bind: 1.130 in
  • Outside Diameter: 1.645 in

The triple-spring design is the gold standard for high-lift, aggressive camshafts where valve float is a constant threat. By distributing the load across three nested springs, PAC Racing has created a component that is not only incredibly strong but also resistant to the harmonic issues that plague lesser designs. With a 687 lb/in spring rate, this is a serious component for builders looking to maximize their engine's potential on the strip. The 1.645 OD ensures compatibility with large-bore, high-performance cylinder heads. When you are building an engine that needs to survive the stress of high-boost or high-compression drag racing, don't compromise on your valve springs. Experience the durability and precision that professional engine builders trust by choosing components from GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About PAC Racing Springs

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

Watch in action

Unmatched Valvetrain Control for High-Output Engines

For engines pushing the boundaries of performance, the PAC Racing Springs 1200 Series 1.645 OD Triple Valve Spring offers the ultimate in valvetrain control. Designed specifically for the extreme demands of drag racing, this triple-spring setup provides the massive seat and open pressures required to keep valves stable at incredibly high RPMs.

Performance Specifications

  • Series: 1200 Series Drag Race
  • Design: Triple Spring configuration
  • Spring Rate: 687 lb/in
  • Coil Bind: 1.130 in
  • Outside Diameter: 1.645 in

The triple-spring design is the gold standard for high-lift, aggressive camshafts where valve float is a constant threat. By distributing the load across three nested springs, PAC Racing has created a component that is not only incredibly strong but also resistant to the harmonic issues that plague lesser designs. With a 687 lb/in spring rate, this is a serious component for builders looking to maximize their engine's potential on the strip. The 1.645 OD ensures compatibility with large-bore, high-performance cylinder heads. When you are building an engine that needs to survive the stress of high-boost or high-compression drag racing, don't compromise on your valve springs. Experience the durability and precision that professional engine builders trust by choosing components from GGCRACING.

Product Details

Product Description

About PAC Racing Springs

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

Watch in action

Unmatched Valvetrain Control for High-Output Engines

For engines pushing the boundaries of performance, the PAC Racing Springs 1200 Series 1.645 OD Triple Valve Spring offers the ultimate in valvetrain control. Designed specifically for the extreme demands of drag racing, this triple-spring setup provides the massive seat and open pressures required to keep valves stable at incredibly high RPMs.

Performance Specifications

  • Series: 1200 Series Drag Race
  • Design: Triple Spring configuration
  • Spring Rate: 687 lb/in
  • Coil Bind: 1.130 in
  • Outside Diameter: 1.645 in

The triple-spring design is the gold standard for high-lift, aggressive camshafts where valve float is a constant threat. By distributing the load across three nested springs, PAC Racing has created a component that is not only incredibly strong but also resistant to the harmonic issues that plague lesser designs. With a 687 lb/in spring rate, this is a serious component for builders looking to maximize their engine's potential on the strip. The 1.645 OD ensures compatibility with large-bore, high-performance cylinder heads. When you are building an engine that needs to survive the stress of high-boost or high-compression drag racing, don't compromise on your valve springs. Experience the durability and precision that professional engine builders trust by choosing components from GGCRACING.

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