Description
Proper ring seal is non-negotiable for peak combustion pressure and oil control—cheap rings cost you horsepower and engine longevity. This Speed Pro set delivers plasma moly construction with standard tension geometry, engineered for reliable performance across a wide range of engine builds. Whether you’re rebuilding a street engine or prepping for the track, these rings maintain consistent blow-by and minimize oil consumption.
- Bore Size: 4.030″
- Ring Thickness: 1/16 x 1/16 x 3/16″
- Material: Plasma moly
- Tension: Standard
- Cylinder Count: 8
- Quantity: Complete kit
- Manufacturer: Speed Pro
- MPN: R990230






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