Description
A quality piston ring set is fundamental to engine reliability and power delivery—poor ring sealing means lost compression, increased blow-by, and accelerated wear on cylinder walls. The Speed Pro 4.155″ Plasma Moly ring set delivers consistent sealing pressure across the entire RPM range while resisting thermal stress and scuffing. Whether you’re building a street engine or a dedicated race motor, proper ring fitment and tension are non-negotiable for longevity and performance.
- Bore diameter: 4.155″
- Top ring: 5/64″
- Second ring: 5/64″
- Oil ring: 3/16″
- Plasma Moly coating
- File fit required
- Standard tension spec
- 8-cylinder kit
- Speed Pro brand
- MPN: R587935
Reviews
There are no reviews yet.