Allstar Performance Exhaust Block Off Plates 1/4in Plastic — Small Block Chevy Spread Port

SKU: DNLF_ALL34215
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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.

Protect Your Engine Ports During Maintenance

Keep debris, dust, and moisture out of your engine during storage or transport with the Allstar Performance Exhaust Block Off Plates (ALL34215). These 1/4-inch thick plastic plates are specifically designed to fit Small Block Chevy (SBC) engines featuring Spread Port or Dart cylinder head configurations. By sealing the exhaust ports, you prevent internal damage and ensure your engine remains in race-ready condition.

Key Features

  • Compatibility: Small Block Chevy (SBC)
  • Port Style: Spread Port / Dart
  • Material: High-Impact 1/4" Plastic
  • Quantity: Sold as a Pair
  • Finish: Black

Engineered for convenience and durability, these block-off plates provide a secure seal without the risk of scratching or marring delicate port surfaces. The lightweight plastic construction is easy to handle and install, making them an essential tool for any engine builder or racer performing routine maintenance or long-term engine storage. Unlike metal alternatives, these plastic plates offer a cost-effective and non-abrasive solution for protecting your investment. Ensure your cylinder heads stay clean and free from contaminants with this simple yet effective engine protection solution. For premium engine maintenance tools and high-performance components, look no further than 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.

Protect Your Engine Ports During Maintenance

Keep debris, dust, and moisture out of your engine during storage or transport with the Allstar Performance Exhaust Block Off Plates (ALL34215). These 1/4-inch thick plastic plates are specifically designed to fit Small Block Chevy (SBC) engines featuring Spread Port or Dart cylinder head configurations. By sealing the exhaust ports, you prevent internal damage and ensure your engine remains in race-ready condition.

Key Features

  • Compatibility: Small Block Chevy (SBC)
  • Port Style: Spread Port / Dart
  • Material: High-Impact 1/4" Plastic
  • Quantity: Sold as a Pair
  • Finish: Black

Engineered for convenience and durability, these block-off plates provide a secure seal without the risk of scratching or marring delicate port surfaces. The lightweight plastic construction is easy to handle and install, making them an essential tool for any engine builder or racer performing routine maintenance or long-term engine storage. Unlike metal alternatives, these plastic plates offer a cost-effective and non-abrasive solution for protecting your investment. Ensure your cylinder heads stay clean and free from contaminants with this simple yet effective engine protection solution. For premium engine maintenance tools and high-performance components, look no further than 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.

Protect Your Engine Ports During Maintenance

Keep debris, dust, and moisture out of your engine during storage or transport with the Allstar Performance Exhaust Block Off Plates (ALL34215). These 1/4-inch thick plastic plates are specifically designed to fit Small Block Chevy (SBC) engines featuring Spread Port or Dart cylinder head configurations. By sealing the exhaust ports, you prevent internal damage and ensure your engine remains in race-ready condition.

Key Features

  • Compatibility: Small Block Chevy (SBC)
  • Port Style: Spread Port / Dart
  • Material: High-Impact 1/4" Plastic
  • Quantity: Sold as a Pair
  • Finish: Black

Engineered for convenience and durability, these block-off plates provide a secure seal without the risk of scratching or marring delicate port surfaces. The lightweight plastic construction is easy to handle and install, making them an essential tool for any engine builder or racer performing routine maintenance or long-term engine storage. Unlike metal alternatives, these plastic plates offer a cost-effective and non-abrasive solution for protecting your investment. Ensure your cylinder heads stay clean and free from contaminants with this simple yet effective engine protection solution. For premium engine maintenance tools and high-performance components, look no further than GGCRACING.

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