Allstar Performance Header Gasket 1-3/4 D-Port Steel Core — Fits Small Block Chevy

SKU: DNLF_ALL87262
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About Allstar Performance Allstar Performance is America's leading circle-track racing ...Read More

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Sale price$11.39
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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.

Watch in action

Superior D-Port Header Gaskets for SBC

Optimize your Small Block Chevy exhaust flow with the Allstar Performance 1-3/4 inch D-port header gasket. Engineered for high-performance engines, this gasket features a robust steel core laminate construction that prevents leaks and resists thermal breakdown. It is the ideal choice for enthusiasts looking to maintain a perfect seal between their headers and cylinder heads.

Key Features for Performance Engines

  • Port Size: 1.750 inch D-port configuration.
  • Core Material: High-strength steel core laminate.
  • Fitment: Optimized for Small Block Chevy (SBC) cylinder heads.
  • Heat Resistance: Designed to withstand extreme exhaust temperatures.
  • Installation: Precision cut for an easy, accurate fit.

Exhaust leaks can significantly impact engine performance and tuning accuracy. By utilizing a steel core laminate gasket, you ensure that your exhaust pulses are directed efficiently through your headers, maximizing scavenging and power output. This gasket is engineered to handle the vibration and thermal cycling inherent in racing and high-performance street applications. Its durable design ensures it won't blow out under high-pressure conditions, giving you peace of mind during every race or spirited drive. Sold individually, this component is a must-have for any serious engine build or header installation project. For high-quality automotive parts and expert-recommended sealing solutions, choose 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.

Watch in action

Superior D-Port Header Gaskets for SBC

Optimize your Small Block Chevy exhaust flow with the Allstar Performance 1-3/4 inch D-port header gasket. Engineered for high-performance engines, this gasket features a robust steel core laminate construction that prevents leaks and resists thermal breakdown. It is the ideal choice for enthusiasts looking to maintain a perfect seal between their headers and cylinder heads.

Key Features for Performance Engines

  • Port Size: 1.750 inch D-port configuration.
  • Core Material: High-strength steel core laminate.
  • Fitment: Optimized for Small Block Chevy (SBC) cylinder heads.
  • Heat Resistance: Designed to withstand extreme exhaust temperatures.
  • Installation: Precision cut for an easy, accurate fit.

Exhaust leaks can significantly impact engine performance and tuning accuracy. By utilizing a steel core laminate gasket, you ensure that your exhaust pulses are directed efficiently through your headers, maximizing scavenging and power output. This gasket is engineered to handle the vibration and thermal cycling inherent in racing and high-performance street applications. Its durable design ensures it won't blow out under high-pressure conditions, giving you peace of mind during every race or spirited drive. Sold individually, this component is a must-have for any serious engine build or header installation project. For high-quality automotive parts and expert-recommended sealing solutions, choose 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.

Watch in action

Superior D-Port Header Gaskets for SBC

Optimize your Small Block Chevy exhaust flow with the Allstar Performance 1-3/4 inch D-port header gasket. Engineered for high-performance engines, this gasket features a robust steel core laminate construction that prevents leaks and resists thermal breakdown. It is the ideal choice for enthusiasts looking to maintain a perfect seal between their headers and cylinder heads.

Key Features for Performance Engines

  • Port Size: 1.750 inch D-port configuration.
  • Core Material: High-strength steel core laminate.
  • Fitment: Optimized for Small Block Chevy (SBC) cylinder heads.
  • Heat Resistance: Designed to withstand extreme exhaust temperatures.
  • Installation: Precision cut for an easy, accurate fit.

Exhaust leaks can significantly impact engine performance and tuning accuracy. By utilizing a steel core laminate gasket, you ensure that your exhaust pulses are directed efficiently through your headers, maximizing scavenging and power output. This gasket is engineered to handle the vibration and thermal cycling inherent in racing and high-performance street applications. Its durable design ensures it won't blow out under high-pressure conditions, giving you peace of mind during every race or spirited drive. Sold individually, this component is a must-have for any serious engine build or header installation project. For high-quality automotive parts and expert-recommended sealing solutions, choose GGCRACING.

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