PAC Racing Springs .990 Titanium Valve Spring Retainers — 7 Degree GM LS Set

SKU: DHDL_PAC-R511-16
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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 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.

Precision Titanium Retainers for GM LS Engines

Upgrade your GM LS-Series engine with the reliability and performance of PAC Racing Springs .990 Titanium Valve Spring Retainers. These 7-degree retainers are specifically designed to work with beehive valve springs, providing a lightweight solution that helps prevent valve float at high RPMs. By utilizing advanced titanium alloys, these retainers significantly reduce reciprocating mass, allowing your LS engine to rev faster and more efficiently.

Technical Specifications

  • Series: 500 Series
  • Material: Premium Titanium
  • Lock Angle: 7 Degree
  • Application: GM LS-Series Engines
  • Spring Type: Beehive
  • OD Step: 0.640 in
  • Quantity: Set of 16

The 7-degree design is a standard for many high-performance LS builds, offering excellent lock security and compatibility with a wide range of aftermarket valve springs. These retainers are meticulously crafted to ensure exact tolerances, providing a perfect fit that minimizes side-loading and maximizes the lifespan of your valvetrain. Whether you are building a street-performance LS or a dedicated race engine, these titanium retainers provide the durability and weight savings necessary to push your engine to the next level. Improve your engine's response and reliability with these top-tier components available at 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.

Precision Titanium Retainers for GM LS Engines

Upgrade your GM LS-Series engine with the reliability and performance of PAC Racing Springs .990 Titanium Valve Spring Retainers. These 7-degree retainers are specifically designed to work with beehive valve springs, providing a lightweight solution that helps prevent valve float at high RPMs. By utilizing advanced titanium alloys, these retainers significantly reduce reciprocating mass, allowing your LS engine to rev faster and more efficiently.

Technical Specifications

  • Series: 500 Series
  • Material: Premium Titanium
  • Lock Angle: 7 Degree
  • Application: GM LS-Series Engines
  • Spring Type: Beehive
  • OD Step: 0.640 in
  • Quantity: Set of 16

The 7-degree design is a standard for many high-performance LS builds, offering excellent lock security and compatibility with a wide range of aftermarket valve springs. These retainers are meticulously crafted to ensure exact tolerances, providing a perfect fit that minimizes side-loading and maximizes the lifespan of your valvetrain. Whether you are building a street-performance LS or a dedicated race engine, these titanium retainers provide the durability and weight savings necessary to push your engine to the next level. Improve your engine's response and reliability with these top-tier components available at 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.

Precision Titanium Retainers for GM LS Engines

Upgrade your GM LS-Series engine with the reliability and performance of PAC Racing Springs .990 Titanium Valve Spring Retainers. These 7-degree retainers are specifically designed to work with beehive valve springs, providing a lightweight solution that helps prevent valve float at high RPMs. By utilizing advanced titanium alloys, these retainers significantly reduce reciprocating mass, allowing your LS engine to rev faster and more efficiently.

Technical Specifications

  • Series: 500 Series
  • Material: Premium Titanium
  • Lock Angle: 7 Degree
  • Application: GM LS-Series Engines
  • Spring Type: Beehive
  • OD Step: 0.640 in
  • Quantity: Set of 16

The 7-degree design is a standard for many high-performance LS builds, offering excellent lock security and compatibility with a wide range of aftermarket valve springs. These retainers are meticulously crafted to ensure exact tolerances, providing a perfect fit that minimizes side-loading and maximizes the lifespan of your valvetrain. Whether you are building a street-performance LS or a dedicated race engine, these titanium retainers provide the durability and weight savings necessary to push your engine to the next level. Improve your engine's response and reliability with these top-tier components available at GGCRACING.

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