Description
A quality piston ring set is foundational to engine reliability and performance—poor ring sealing means blow-by, oil consumption, and lost power. Speed Pro’s file-fit design ensures precise ring-to-bore contact for optimal compression and durability across the entire RPM range. Whether you’re rebuilding a street engine or preparing for competition, this plasma moly construction handles sustained heat and pressure with minimal wear.
- Bore diameter: 4.125″
- Ring thickness: 5/64 x 5/64 x 3/16″
- Material: Plasma moly
- Tension: Standard
- Fit type: File fit
- Cylinder count: 8
- Manufacturer: Speed Pro
- MPN: R58795
- Fitment: 8-cylinder engines
- Installation: Professional honing recommended
