Description
Piston rings are the critical seal between your combustion chamber and crankcase—worn or poor-quality rings kill compression, increase blowby, and rob horsepower. Speed Pro’s plasma-moly construction delivers consistent ring seal across the RPM range while maintaining durability through sustained high-load operation. If you’re rebuilding an engine for serious performance or racing duty, this 4.155 bore kit ensures the precision fit and material quality your build deserves.
- Bore: 4.155 in
- Top ring: 1/16 in
- Second ring: 1/16 in
- Oil ring: 3/16 in
- Material: Plasma moly
- Fitment: File fit
- Tension: Standard
- Quantity: 8-cylinder kit
- Manufacturer: Speed Pro
- MPN: R1024835
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