Holley Power Valve - 5.5" Hg High Flow - Single Stage Carburetor Valve

SKU: BBVL_125-155
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About Holley Holley is the legendary American carburetor and fuel-injection ...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 Holley

Holley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.

Aggressive Fuel Enrichment with Holley 5.5" Hg High Flow Power Valve

Elevate your Holley carburetor's performance under demanding conditions with this high-performance Holley 5.5" Hg High Flow Power Valve. Crucial for modified engines and racing applications, this power valve is engineered to provide a richer fuel mixture earlier, ensuring your engine receives ample fuel during rapid acceleration and high-load situations. Its single-stage, two-door design is optimized for quick and consistent fuel delivery when you need it most.

Enhanced Performance for Modified Engines

This high-flow power valve is calibrated to open at 5.5 inches of vacuum (Hg), making it ideal for engines with lower idle vacuum or those requiring earlier fuel enrichment. The robust construction guarantees reliable operation and extended durability, preventing lean conditions under power. Each power valve comes complete with a high-quality gasket, ensuring a perfect, leak-free seal and simplifying the installation process, so you can get back to the track or street with confidence.

  • Part Number: 125-155
  • Vacuum Rating: 5.5 inches Hg
  • Flow Type: High Flow
  • Stage: Single Stage
  • Door Design: Two Door
  • Included: Gasket
  • Application: Holley Carburetors

The Advantage of a High Flow Power Valve

For performance applications, a high-flow power valve is paramount for preventing detrimental lean conditions that can lead to power loss or engine damage. It allows for precise fuel curve tuning, ensuring your engine transitions smoothly from cruise to wide-open throttle with optimal air/fuel ratios. Rely on Holley's expertise for critical carburetor components that deliver uncompromising performance. Find your high-flow power valve at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Holley

Holley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.

Aggressive Fuel Enrichment with Holley 5.5" Hg High Flow Power Valve

Elevate your Holley carburetor's performance under demanding conditions with this high-performance Holley 5.5" Hg High Flow Power Valve. Crucial for modified engines and racing applications, this power valve is engineered to provide a richer fuel mixture earlier, ensuring your engine receives ample fuel during rapid acceleration and high-load situations. Its single-stage, two-door design is optimized for quick and consistent fuel delivery when you need it most.

Enhanced Performance for Modified Engines

This high-flow power valve is calibrated to open at 5.5 inches of vacuum (Hg), making it ideal for engines with lower idle vacuum or those requiring earlier fuel enrichment. The robust construction guarantees reliable operation and extended durability, preventing lean conditions under power. Each power valve comes complete with a high-quality gasket, ensuring a perfect, leak-free seal and simplifying the installation process, so you can get back to the track or street with confidence.

  • Part Number: 125-155
  • Vacuum Rating: 5.5 inches Hg
  • Flow Type: High Flow
  • Stage: Single Stage
  • Door Design: Two Door
  • Included: Gasket
  • Application: Holley Carburetors

The Advantage of a High Flow Power Valve

For performance applications, a high-flow power valve is paramount for preventing detrimental lean conditions that can lead to power loss or engine damage. It allows for precise fuel curve tuning, ensuring your engine transitions smoothly from cruise to wide-open throttle with optimal air/fuel ratios. Rely on Holley's expertise for critical carburetor components that deliver uncompromising performance. Find your high-flow power valve at GGCRACING.

Product Details

Product Description

About Holley

Holley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.

Aggressive Fuel Enrichment with Holley 5.5" Hg High Flow Power Valve

Elevate your Holley carburetor's performance under demanding conditions with this high-performance Holley 5.5" Hg High Flow Power Valve. Crucial for modified engines and racing applications, this power valve is engineered to provide a richer fuel mixture earlier, ensuring your engine receives ample fuel during rapid acceleration and high-load situations. Its single-stage, two-door design is optimized for quick and consistent fuel delivery when you need it most.

Enhanced Performance for Modified Engines

This high-flow power valve is calibrated to open at 5.5 inches of vacuum (Hg), making it ideal for engines with lower idle vacuum or those requiring earlier fuel enrichment. The robust construction guarantees reliable operation and extended durability, preventing lean conditions under power. Each power valve comes complete with a high-quality gasket, ensuring a perfect, leak-free seal and simplifying the installation process, so you can get back to the track or street with confidence.

  • Part Number: 125-155
  • Vacuum Rating: 5.5 inches Hg
  • Flow Type: High Flow
  • Stage: Single Stage
  • Door Design: Two Door
  • Included: Gasket
  • Application: Holley Carburetors

The Advantage of a High Flow Power Valve

For performance applications, a high-flow power valve is paramount for preventing detrimental lean conditions that can lead to power loss or engine damage. It allows for precise fuel curve tuning, ensuring your engine transitions smoothly from cruise to wide-open throttle with optimal air/fuel ratios. Rely on Holley's expertise for critical carburetor components that deliver uncompromising performance. Find your high-flow power valve at GGCRACING.

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