Auto Racing Products 85.0mm Tapered Piston Ring Compressor — Precision Engine Assembly Tool

SKU: BQDN_901-8500
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About Auto Racing Products ARP (Automotive Racing Products) makes the ...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 Auto Racing Products

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

Watch in action

Professional Engine Assembly

The Auto Racing Products 85.0mm Tapered Ring Compressor is an essential tool for any engine builder working on 85.0mm bore configurations. Designed to take the stress out of piston installation, this tapered compressor ensures that your piston rings are compressed evenly and safely as they enter the cylinder bore. This prevents common issues like ring snagging, breakage, or cylinder wall scoring that can occur with inferior tools.

Precision Engineering

Constructed from lightweight, high-strength aluminum, this tool is designed for durability and ease of use. The black anodized finish provides a smooth surface that reduces friction, allowing the piston to glide into the cylinder with minimal effort. Its bore-specific design guarantees a perfect fit, providing the consistency that professional engine builders rely on for high-performance results.

  • Bore Size: 85.0mm precision fit
  • Material: High-grade aluminum
  • Finish: Black anodized for wear resistance
  • Design: Tapered entry for smooth compression
  • Benefit: Protects rings and cylinder walls

Achieving the perfect ring seal is paramount for maintaining compression and preventing oil blow-by. By using a dedicated tapered compressor, you ensure that the rings are properly aligned and compressed before they enter the cylinder, leading to a more reliable and powerful engine. Whether you are building a street machine or a dedicated track car, this tool is a must-have for your shop. Get the best in engine assembly components from GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Auto Racing Products

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

Watch in action

Professional Engine Assembly

The Auto Racing Products 85.0mm Tapered Ring Compressor is an essential tool for any engine builder working on 85.0mm bore configurations. Designed to take the stress out of piston installation, this tapered compressor ensures that your piston rings are compressed evenly and safely as they enter the cylinder bore. This prevents common issues like ring snagging, breakage, or cylinder wall scoring that can occur with inferior tools.

Precision Engineering

Constructed from lightweight, high-strength aluminum, this tool is designed for durability and ease of use. The black anodized finish provides a smooth surface that reduces friction, allowing the piston to glide into the cylinder with minimal effort. Its bore-specific design guarantees a perfect fit, providing the consistency that professional engine builders rely on for high-performance results.

  • Bore Size: 85.0mm precision fit
  • Material: High-grade aluminum
  • Finish: Black anodized for wear resistance
  • Design: Tapered entry for smooth compression
  • Benefit: Protects rings and cylinder walls

Achieving the perfect ring seal is paramount for maintaining compression and preventing oil blow-by. By using a dedicated tapered compressor, you ensure that the rings are properly aligned and compressed before they enter the cylinder, leading to a more reliable and powerful engine. Whether you are building a street machine or a dedicated track car, this tool is a must-have for your shop. Get the best in engine assembly components from GGCRACING.

Product Details

Product Description

About Auto Racing Products

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

Watch in action

Professional Engine Assembly

The Auto Racing Products 85.0mm Tapered Ring Compressor is an essential tool for any engine builder working on 85.0mm bore configurations. Designed to take the stress out of piston installation, this tapered compressor ensures that your piston rings are compressed evenly and safely as they enter the cylinder bore. This prevents common issues like ring snagging, breakage, or cylinder wall scoring that can occur with inferior tools.

Precision Engineering

Constructed from lightweight, high-strength aluminum, this tool is designed for durability and ease of use. The black anodized finish provides a smooth surface that reduces friction, allowing the piston to glide into the cylinder with minimal effort. Its bore-specific design guarantees a perfect fit, providing the consistency that professional engine builders rely on for high-performance results.

  • Bore Size: 85.0mm precision fit
  • Material: High-grade aluminum
  • Finish: Black anodized for wear resistance
  • Design: Tapered entry for smooth compression
  • Benefit: Protects rings and cylinder walls

Achieving the perfect ring seal is paramount for maintaining compression and preventing oil blow-by. By using a dedicated tapered compressor, you ensure that the rings are properly aligned and compressed before they enter the cylinder, leading to a more reliable and powerful engine. Whether you are building a street machine or a dedicated track car, this tool is a must-have for your shop. Get the best in engine assembly components from GGCRACING.

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