Description
Piston rings are critical to engine compression, blow-by control, and oil management—and a quality ring set directly impacts your engine’s power output and longevity. The Speed Pro 4.060 ring set delivers low-tension design with plasma moly coating for reduced friction and extended ring life, making it ideal for both naturally aspirated and forced induction builds. Whether you’re rebuilding a race engine or refreshing a street machine, these file-fit rings provide the precision and durability that separates a reliable engine from one that fails.
- Bore Size: 4.060″
- Ring Thickness: 1/16 x 1/16 x 3/16″
- Material: Plasma Moly coated
- Design: Low tension
- Fitment: File fit (requires honing)
- Quantity: 8-cylinder kit
- MPN: R940165
- Installation: Professional machine work recommended
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