Description
Piston rings are critical to engine performance—they seal combustion pressure, control oil consumption, and directly impact horsepower delivery and longevity. The Hastings 4.040 Piston Ring Set is engineered for precision fit and reliable performance in high-demand racing and rebuilding applications. Whether you’re freshening a race engine or restoring a classic build, this file-fit ring set delivers the compression integrity and durability your engine demands.
- Bore diameter: 4.040″
- Ring thickness: 1/16 x 1/16 x 3/16″
- File-fit design
- Moly-coated compression rings
- Standard tension profile
- 8-cylinder configuration
- Complete ring kit
- MPN: 2M5523045
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