Allstar Performance 4150 4-Hole Carb Spacer 0.5in — Universal Square Bore

SKU: DNLF_ALL25983
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About Allstar Performance Allstar Performance is America's leading circle-track racing ...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 Allstar Performance

Allstar Performance is America's leading circle-track racing parts manufacturer. From aluminum panels and chassis components to brake hardware, steering boxes, and oval-track shock packages — every Allstar product is born from sprint car and modified racing experience.

Improve Airflow with Allstar Performance Carb Spacers

The Allstar Performance 4150 4-Hole Carb Spacer is a critical component for tuners looking to optimize the intake plenum volume of their carburetor setup. With a 0.5-inch thickness, this spacer is designed to increase the air-fuel mixture velocity and improve atomization, leading to better throttle response and increased mid-range torque. Crafted from high-quality, heat-resistant plastic, it effectively isolates the carburetor from engine heat soak, keeping your fuel cooler and denser for maximum power output.

Technical Specifications

  • Design: 4-Hole square bore configuration for improved signal to the carburetor boosters.
  • Material: Durable, lightweight composite plastic to prevent heat transfer.
  • Thickness: 0.500 inch profile, ideal for hood clearance and intake tuning.
  • Compatibility: Fits standard 4150 square bore carburetor flanges.
  • Finish: Gray finish for a clean, professional look under the hood.

This spacer is a cost-effective way to fine-tune your engine's performance characteristics. Whether you are building a drag car or a high-performance street machine, the 4-hole design helps maintain consistent air distribution across all cylinders, preventing the common lean or rich conditions associated with open-plenum spacers in certain applications. Ensure your fuel system is running at peak efficiency by installing this precision-engineered component. For more high-quality engine components and racing hardware, visit GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Allstar Performance

Allstar Performance is America's leading circle-track racing parts manufacturer. From aluminum panels and chassis components to brake hardware, steering boxes, and oval-track shock packages — every Allstar product is born from sprint car and modified racing experience.

Improve Airflow with Allstar Performance Carb Spacers

The Allstar Performance 4150 4-Hole Carb Spacer is a critical component for tuners looking to optimize the intake plenum volume of their carburetor setup. With a 0.5-inch thickness, this spacer is designed to increase the air-fuel mixture velocity and improve atomization, leading to better throttle response and increased mid-range torque. Crafted from high-quality, heat-resistant plastic, it effectively isolates the carburetor from engine heat soak, keeping your fuel cooler and denser for maximum power output.

Technical Specifications

  • Design: 4-Hole square bore configuration for improved signal to the carburetor boosters.
  • Material: Durable, lightweight composite plastic to prevent heat transfer.
  • Thickness: 0.500 inch profile, ideal for hood clearance and intake tuning.
  • Compatibility: Fits standard 4150 square bore carburetor flanges.
  • Finish: Gray finish for a clean, professional look under the hood.

This spacer is a cost-effective way to fine-tune your engine's performance characteristics. Whether you are building a drag car or a high-performance street machine, the 4-hole design helps maintain consistent air distribution across all cylinders, preventing the common lean or rich conditions associated with open-plenum spacers in certain applications. Ensure your fuel system is running at peak efficiency by installing this precision-engineered component. For more high-quality engine components and racing hardware, visit GGCRACING.

Product Details

Product Description

About Allstar Performance

Allstar Performance is America's leading circle-track racing parts manufacturer. From aluminum panels and chassis components to brake hardware, steering boxes, and oval-track shock packages — every Allstar product is born from sprint car and modified racing experience.

Improve Airflow with Allstar Performance Carb Spacers

The Allstar Performance 4150 4-Hole Carb Spacer is a critical component for tuners looking to optimize the intake plenum volume of their carburetor setup. With a 0.5-inch thickness, this spacer is designed to increase the air-fuel mixture velocity and improve atomization, leading to better throttle response and increased mid-range torque. Crafted from high-quality, heat-resistant plastic, it effectively isolates the carburetor from engine heat soak, keeping your fuel cooler and denser for maximum power output.

Technical Specifications

  • Design: 4-Hole square bore configuration for improved signal to the carburetor boosters.
  • Material: Durable, lightweight composite plastic to prevent heat transfer.
  • Thickness: 0.500 inch profile, ideal for hood clearance and intake tuning.
  • Compatibility: Fits standard 4150 square bore carburetor flanges.
  • Finish: Gray finish for a clean, professional look under the hood.

This spacer is a cost-effective way to fine-tune your engine's performance characteristics. Whether you are building a drag car or a high-performance street machine, the 4-hole design helps maintain consistent air distribution across all cylinders, preventing the common lean or rich conditions associated with open-plenum spacers in certain applications. Ensure your fuel system is running at peak efficiency by installing this precision-engineered component. For more high-quality engine components and racing hardware, visit GGCRACING.

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