Description
Maintaining proper ring seal is critical to engine longevity and performance—any blow-by robs you of compression, power, and fuel economy. This Speed Pro piston ring set delivers plasma moly technology for enhanced wear resistance and consistent pressure retention across the full RPM range. Whether you’re rebuilding a naturally aspirated engine or fine-tuning a performance build, these rings provide the reliability and precision fit you need.
- Bore diameter: 4.020″
- Ring thickness: 1/16 x 1/16 x 3/16″
- Material: Plasma moly
- Tension: Standard
- Cylinder count: 8
- Configuration: Complete kit
- Manufacturer: Speed Pro
- Part number: R990220
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