Description
Precision piston rings are critical to engine performance—they seal combustion pressure, regulate oil consumption, and directly impact horsepower delivery and engine longevity. This plasma moly ring set is engineered for high-RPM applications where low tension and file-fit construction ensure consistent blow-by control without excessive friction. Whether you’re rebuilding a race engine or upgrading an existing platform, these rings deliver the reliability and performance you need to maximize power output.
- Bore Diameter: 4.165″
- Ring Thickness: 3.0mm
- Top/Second Ring: 0.043″
- Oil Ring: 0.043″
- Construction: Plasma Moly
- Tension Profile: Low Tension
- Fitment: File Fit (requires honing)
- Cylinder Count: 8-Cylinder
- Configuration: Complete Kit
- MPN: 4170ML-043






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