Description
Worn piston rings are the silent killer of engine efficiency—they let combustion pressure escape, rob you of power, and increase blow-by that fouls your oil. The Wiseco Ring Set 3447X restores proper compression sealing in your Big Twin, bringing back the snap and reliability your engine demands. Whether you’re rebuilding after a long season or refreshing a high-mileage bottom end, these precision rings are essential to running clean and strong.
- Bore diameter: 3.447in
- Fits: 1948-1964 Harley-Davidson FLH
- Quantity: One piston set
- Material: High-quality steel
- Design: Optimized sealing
- Reduces blow-by: Yes
- Installation: Bolt-on replacement
- Manufacturer: Wiseco
- MPN: 3447X









