Manley Ford 4.6L DOHC (4 Valve) 30mm Race Master Exhaust Valves — Fits 1999-2008 Ford Mustang/GT

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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 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 Performance Race Master Exhaust Valves for Ford 4.6L DOHC (4 Valve)

Enhance the performance and reliability of your Ford 4.6L DOHC 4-valve engine with Manley Performance Race Master Exhaust Valves. These valves are meticulously engineered for high-performance applications, including the Mustang and Ford GT, ensuring optimal airflow and durability under extreme conditions.

Precision Engineered for Power

  • High-Grade Stainless Steel: Constructed from robust XH-426 stainless steel, providing exceptional strength and resistance to high temperatures and pressures.
  • Enhanced Durability Features: Equipped with chrome stems and hard tips to significantly improve wear resistance and extend the lifespan of the valves.
  • Optimized Combustion: Features swirl-polished under-head areas and fully machined combustion faces to promote superior airflow and more efficient combustion.
  • Race Master Design: The straight stem Race Master design is ideal for racing and high-performance street applications.
  • Alcohol Fuel Compatible: Recommended for exhaust valve applications using alcohol-based fuels, ensuring consistent performance in demanding environments.

Vehicle Fitment

These valves are designed to fit the following Ford models equipped with the 4.6L DOHC 4-valve engine:

  • 1999-2001 Ford Mustang SVT Cobra
  • 2000 Ford Mustang SVT Cobra R
  • 2007-2008 Ford Mustang Shelby GT500
  • 2005-2006 Ford GT

Invest in Manley Performance quality for your Ford's valvetrain and experience a noticeable improvement in engine performance and longevity.

Get your Manley Performance parts at GGCRACING.COM for your Ford project.

Vehicle Fitment

Years Make Model Trim
2005-2006 Ford GT Base
1999 Ford Mustang SVT Cobra
2000 Ford Mustang SVT Cobra R
2001 Ford Mustang SVT Cobra
2007-2008 Ford Mustang Shelby GT500

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 Performance Race Master Exhaust Valves for Ford 4.6L DOHC (4 Valve)

Enhance the performance and reliability of your Ford 4.6L DOHC 4-valve engine with Manley Performance Race Master Exhaust Valves. These valves are meticulously engineered for high-performance applications, including the Mustang and Ford GT, ensuring optimal airflow and durability under extreme conditions.

Precision Engineered for Power

  • High-Grade Stainless Steel: Constructed from robust XH-426 stainless steel, providing exceptional strength and resistance to high temperatures and pressures.
  • Enhanced Durability Features: Equipped with chrome stems and hard tips to significantly improve wear resistance and extend the lifespan of the valves.
  • Optimized Combustion: Features swirl-polished under-head areas and fully machined combustion faces to promote superior airflow and more efficient combustion.
  • Race Master Design: The straight stem Race Master design is ideal for racing and high-performance street applications.
  • Alcohol Fuel Compatible: Recommended for exhaust valve applications using alcohol-based fuels, ensuring consistent performance in demanding environments.

Vehicle Fitment

These valves are designed to fit the following Ford models equipped with the 4.6L DOHC 4-valve engine:

  • 1999-2001 Ford Mustang SVT Cobra
  • 2000 Ford Mustang SVT Cobra R
  • 2007-2008 Ford Mustang Shelby GT500
  • 2005-2006 Ford GT

Invest in Manley Performance quality for your Ford's valvetrain and experience a noticeable improvement in engine performance and longevity.

Get your Manley Performance parts at GGCRACING.COM for your Ford project.

Vehicle Fitment

Years Make Model Trim
2005-2006 Ford GT Base
1999 Ford Mustang SVT Cobra
2000 Ford Mustang SVT Cobra R
2001 Ford Mustang SVT Cobra
2007-2008 Ford Mustang Shelby GT500

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 Performance Race Master Exhaust Valves for Ford 4.6L DOHC (4 Valve)

Enhance the performance and reliability of your Ford 4.6L DOHC 4-valve engine with Manley Performance Race Master Exhaust Valves. These valves are meticulously engineered for high-performance applications, including the Mustang and Ford GT, ensuring optimal airflow and durability under extreme conditions.

Precision Engineered for Power

  • High-Grade Stainless Steel: Constructed from robust XH-426 stainless steel, providing exceptional strength and resistance to high temperatures and pressures.
  • Enhanced Durability Features: Equipped with chrome stems and hard tips to significantly improve wear resistance and extend the lifespan of the valves.
  • Optimized Combustion: Features swirl-polished under-head areas and fully machined combustion faces to promote superior airflow and more efficient combustion.
  • Race Master Design: The straight stem Race Master design is ideal for racing and high-performance street applications.
  • Alcohol Fuel Compatible: Recommended for exhaust valve applications using alcohol-based fuels, ensuring consistent performance in demanding environments.

Vehicle Fitment

These valves are designed to fit the following Ford models equipped with the 4.6L DOHC 4-valve engine:

  • 1999-2001 Ford Mustang SVT Cobra
  • 2000 Ford Mustang SVT Cobra R
  • 2007-2008 Ford Mustang Shelby GT500
  • 2005-2006 Ford GT

Invest in Manley Performance quality for your Ford's valvetrain and experience a noticeable improvement in engine performance and longevity.

Get your Manley Performance parts at GGCRACING.COM for your Ford project.

Vehicle Fitment

Years Make Model Trim
2005-2006 Ford GT Base
1999 Ford Mustang SVT Cobra
2000 Ford Mustang SVT Cobra R
2001 Ford Mustang SVT Cobra
2007-2008 Ford Mustang Shelby GT500

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