PAC Racing Springs 1.304 Dual Valve Springs RPM Series — Fits GM LS-Series Engines

SKU: DHDL_PAC-1205X-16
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High-Performance Valvetrain Stability with PAC RacingEngineered for high-RPM reliability, the ...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

High-Performance Valvetrain Stability with PAC Racing

Engineered for high-RPM reliability, the PAC Racing 1.304 Dual Valve Springs are the gold standard for GM LS-Series engine builds. These springs are specifically designed to handle aggressive camshaft profiles while maintaining precise valve control at high engine speeds. By utilizing a dual-spring configuration, they provide superior harmonic dampening and fatigue resistance compared to stock components.

Technical Specifications

  • Spring Type: Dual Valve Spring
  • Spring Rate: 392 lb/in
  • Coil Bind: 1.000 in
  • Outer Diameter: 1.304 in
  • Quantity: Set of 16

Whether you are building a street-strip machine or a dedicated track car, these springs offer the consistency required to push your LS engine to the limit. The RPM Series design ensures that your valvetrain remains stable under extreme conditions, preventing valve float and protecting your engine internals from catastrophic failure. Each set is manufactured with premium materials to ensure long-lasting performance and consistent pressure levels across all cylinders. Upgrade your valvetrain today with high-quality components from GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

High-Performance Valvetrain Stability with PAC Racing

Engineered for high-RPM reliability, the PAC Racing 1.304 Dual Valve Springs are the gold standard for GM LS-Series engine builds. These springs are specifically designed to handle aggressive camshaft profiles while maintaining precise valve control at high engine speeds. By utilizing a dual-spring configuration, they provide superior harmonic dampening and fatigue resistance compared to stock components.

Technical Specifications

  • Spring Type: Dual Valve Spring
  • Spring Rate: 392 lb/in
  • Coil Bind: 1.000 in
  • Outer Diameter: 1.304 in
  • Quantity: Set of 16

Whether you are building a street-strip machine or a dedicated track car, these springs offer the consistency required to push your LS engine to the limit. The RPM Series design ensures that your valvetrain remains stable under extreme conditions, preventing valve float and protecting your engine internals from catastrophic failure. Each set is manufactured with premium materials to ensure long-lasting performance and consistent pressure levels across all cylinders. Upgrade your valvetrain today with high-quality components from GGCRACING.

Product Details

Product Description

High-Performance Valvetrain Stability with PAC Racing

Engineered for high-RPM reliability, the PAC Racing 1.304 Dual Valve Springs are the gold standard for GM LS-Series engine builds. These springs are specifically designed to handle aggressive camshaft profiles while maintaining precise valve control at high engine speeds. By utilizing a dual-spring configuration, they provide superior harmonic dampening and fatigue resistance compared to stock components.

Technical Specifications

  • Spring Type: Dual Valve Spring
  • Spring Rate: 392 lb/in
  • Coil Bind: 1.000 in
  • Outer Diameter: 1.304 in
  • Quantity: Set of 16

Whether you are building a street-strip machine or a dedicated track car, these springs offer the consistency required to push your LS engine to the limit. The RPM Series design ensures that your valvetrain remains stable under extreme conditions, preventing valve float and protecting your engine internals from catastrophic failure. Each set is manufactured with premium materials to ensure long-lasting performance and consistent pressure levels across all cylinders. Upgrade your valvetrain today with high-quality components from GGCRACING.

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