Manley Performance

Manley Chevy LS-7 Severe Duty Exhaust Valves (Set of 8) — Fits LS-7

Manley Chevy LS-7 Severe Duty Exhaust Valves (Set of 8) — Fits LS-7
Manley Chevy LS-7 Severe Duty Exhaust Valves (Set of 8) — Fits LS-7
Manley Chevy LS-7 Severe Duty Exhaust Valves (Set of 8) — Fits LS-7
Manley Chevy LS-7 Severe Duty Exhaust Valves (Set of 8) — Fits LS-7
Manley Chevy LS-7 Severe Duty Exhaust Valves (Set of 8) — Fits LS-7
Manley Chevy LS-7 Severe Duty Exhaust Valves (Set of 8) — Fits LS-7
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Manley Chevy LS-7 Severe Duty Exhaust Valves (Set of 8) — Fits LS-7Manley Chevy LS-7 Severe Duty Exhaust Valves (Set of 8) — Fits LS-7Manley Chevy LS-7 Severe Duty Exhaust Valves (Set of 8) — Fits LS-7Manley Chevy LS-7 Severe Duty Exhaust Valves (Set of 8) — Fits LS-7Manley Chevy LS-7 Severe Duty Exhaust Valves (Set of 8) — Fits LS-7Manley Chevy LS-7 Severe Duty Exhaust Valves (Set of 8) — Fits LS-7
Manley Performance

Manley Chevy LS-7 Severe Duty Exhaust Valves (Set of 8) — Fits LS-7

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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
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About Manley Performance

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

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Manley LS-7 Severe Duty Exhaust Valves for High-Performance Engines

Upgrade your Chevy LS-7 engine with Manley's Severe Duty Exhaust Valves, engineered for unparalleled durability and performance in high-temperature gasoline applications. These valves are designed to withstand extreme stress and cycling, offering a significant advantage over standard components.

Unmatched Durability and Performance:

  • Exceptional Fatigue Life: Rigorously tested, these valves demonstrate up to 100 million cycles at 1400°F, vastly outperforming competitors that fail after only 100,000 cycles – a 1000x improvement in fatigue resistance.
  • High-Temperature Gasoline Engine Design: Specifically developed for optimal performance and longevity in high-temperature gasoline engine environments.
  • Premium Materials: Constructed from high-quality stainless steel (XH-426 for exhaust) for superior strength and heat tolerance.
  • Chrome Stems and Hard Tips: Incorporate chrome-plated stems and hardened tips to significantly enhance wear resistance and ensure sustained performance under harsh conditions.
  • Optimized Combustion Efficiency: Feature swirl-polished under-head areas and fully machined combustion faces to promote efficient airflow and maximize combustion performance.
  • LS-7 Specific Fitment: Designed as a direct fit for Chevy LS-7 small block engines, ensuring proper installation and function.

For LS-7 owners who demand the utmost in reliability and performance, especially in demanding conditions, Manley's Severe Duty Exhaust Valves are the ultimate choice. Ensure your engine operates at peak efficiency with these high-performance components from GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Manley Performance

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

Watch in action

Manley LS-7 Severe Duty Exhaust Valves for High-Performance Engines

Upgrade your Chevy LS-7 engine with Manley's Severe Duty Exhaust Valves, engineered for unparalleled durability and performance in high-temperature gasoline applications. These valves are designed to withstand extreme stress and cycling, offering a significant advantage over standard components.

Unmatched Durability and Performance:

  • Exceptional Fatigue Life: Rigorously tested, these valves demonstrate up to 100 million cycles at 1400°F, vastly outperforming competitors that fail after only 100,000 cycles – a 1000x improvement in fatigue resistance.
  • High-Temperature Gasoline Engine Design: Specifically developed for optimal performance and longevity in high-temperature gasoline engine environments.
  • Premium Materials: Constructed from high-quality stainless steel (XH-426 for exhaust) for superior strength and heat tolerance.
  • Chrome Stems and Hard Tips: Incorporate chrome-plated stems and hardened tips to significantly enhance wear resistance and ensure sustained performance under harsh conditions.
  • Optimized Combustion Efficiency: Feature swirl-polished under-head areas and fully machined combustion faces to promote efficient airflow and maximize combustion performance.
  • LS-7 Specific Fitment: Designed as a direct fit for Chevy LS-7 small block engines, ensuring proper installation and function.

For LS-7 owners who demand the utmost in reliability and performance, especially in demanding conditions, Manley's Severe Duty Exhaust Valves are the ultimate choice. Ensure your engine operates at peak efficiency with these high-performance components from GGCRACING.

Product Details

Product Description

About Manley Performance

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

Watch in action

Manley LS-7 Severe Duty Exhaust Valves for High-Performance Engines

Upgrade your Chevy LS-7 engine with Manley's Severe Duty Exhaust Valves, engineered for unparalleled durability and performance in high-temperature gasoline applications. These valves are designed to withstand extreme stress and cycling, offering a significant advantage over standard components.

Unmatched Durability and Performance:

  • Exceptional Fatigue Life: Rigorously tested, these valves demonstrate up to 100 million cycles at 1400°F, vastly outperforming competitors that fail after only 100,000 cycles – a 1000x improvement in fatigue resistance.
  • High-Temperature Gasoline Engine Design: Specifically developed for optimal performance and longevity in high-temperature gasoline engine environments.
  • Premium Materials: Constructed from high-quality stainless steel (XH-426 for exhaust) for superior strength and heat tolerance.
  • Chrome Stems and Hard Tips: Incorporate chrome-plated stems and hardened tips to significantly enhance wear resistance and ensure sustained performance under harsh conditions.
  • Optimized Combustion Efficiency: Feature swirl-polished under-head areas and fully machined combustion faces to promote efficient airflow and maximize combustion performance.
  • LS-7 Specific Fitment: Designed as a direct fit for Chevy LS-7 small block engines, ensuring proper installation and function.

For LS-7 owners who demand the utmost in reliability and performance, especially in demanding conditions, Manley's Severe Duty Exhaust Valves are the ultimate choice. Ensure your engine operates at peak efficiency with these high-performance components from GGCRACING.

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