ARP
ARP 81.5mm Tapered Piston Ring Compressor Tool — Professional Engine Building
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ARP 81.5mm Tapered Piston Ring Compressor Tool — Professional Engine Building
ARP

ARP 81.5mm Tapered Piston Ring Compressor Tool — Professional Engine Building

SKU: ARP901-8150

About ARP ARP (Automotive Racing Products) makes the strongest fasteners ...Read more

Price:
$68.99
680 ENTRIES10X
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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

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Product Details

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About ARP

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

Precision Engine Assembly with ARP

Achieve professional-grade engine builds with the ARP 81.5mm Tapered Piston Ring Compressor. Designed for precision and ease of use, this tool eliminates the frustration of installing pistons into your cylinder block. Unlike traditional adjustable band compressors, the ARP tapered design ensures that piston rings are compressed evenly and safely, preventing damage to the ring lands or cylinder walls during installation.

Key Features and Benefits

  • Precision Tapered Design: Engineered specifically for 81.5mm bore sizes to ensure a perfect fit every time.
  • Durable Construction: Manufactured from high-strength materials to withstand the rigors of a professional workshop environment.
  • Friction-Free Surface: Features a smooth, CNC-machined interior finish that allows the piston and ring assembly to slide into the cylinder with minimal force.
  • Time-Saving Efficiency: Drastically reduces the time required for engine block assembly, minimizing the risk of ring breakage.

Whether you are performing a street-performance rebuild or a full-blown race engine assembly, having the right specialized equipment is essential. The ARP 81.5mm compressor is a must-have for any serious mechanic looking to maintain tight tolerances and engine longevity. By ensuring the rings are properly seated before they enter the bore, you prevent blow-by and ensure optimal compression from the very first start-up. Trust your engine build to the industry-leading quality found at GGCRACING.

About ARP

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

Precision Engine Assembly with ARP

Achieve professional-grade engine builds with the ARP 81.5mm Tapered Piston Ring Compressor. Designed for precision and ease of use, this tool eliminates the frustration of installing pistons into your cylinder block. Unlike traditional adjustable band compressors, the ARP tapered design ensures that piston rings are compressed evenly and safely, preventing damage to the ring lands or cylinder walls during installation.

Key Features and Benefits

  • Precision Tapered Design: Engineered specifically for 81.5mm bore sizes to ensure a perfect fit every time.
  • Durable Construction: Manufactured from high-strength materials to withstand the rigors of a professional workshop environment.
  • Friction-Free Surface: Features a smooth, CNC-machined interior finish that allows the piston and ring assembly to slide into the cylinder with minimal force.
  • Time-Saving Efficiency: Drastically reduces the time required for engine block assembly, minimizing the risk of ring breakage.

Whether you are performing a street-performance rebuild or a full-blown race engine assembly, having the right specialized equipment is essential. The ARP 81.5mm compressor is a must-have for any serious mechanic looking to maintain tight tolerances and engine longevity. By ensuring the rings are properly seated before they enter the bore, you prevent blow-by and ensure optimal compression from the very first start-up. Trust your engine build to the industry-leading quality found at GGCRACING.

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