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Supertech 78.5mm Piston Rings - Gas Nitrided (1x3.1 / 1.2x3.40 / 2.8x3.10mm)

$25.51 $31.88
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Supertech 78.5mm Piston Rings - Gas Nitrided (1x3.1 / 1.2x3.40 / 2.8x3.10mm)
$25.51 $31.88
$25.51 $31.88

This Supertech high-performance piston ring set is engineered for 78.5mm bore engines requiring precise ring-to-groove clearances and superior thermal stability. Each ring undergoes a gas nitriding process to increase surface hardness and provide a low-friction finish that significantly reduces cylinder wall wear under high-load conditions.

Designed for professional engine builders and performance applications, these rings ensure a reliable combustion seal and efficient oil control. The gas nitrided treatment allows for faster break-in periods and improved heat resistance compared to traditional chrome or moly coatings.

  • Bore Diameter: 78.5mm
  • Top Ring Dimensions: 1.0mm x 3.10mm
  • Second Ring Dimensions: 1.2mm x 3.40mm
  • Oil Ring Dimensions: 2.8mm x 3.10mm
  • Material Treatment: Gas Nitrided
  • Manufacturer Part Number: R78.5-GNH7850

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