Wiseco Black Edition Piston Kit TC 103 CID 9.6:1 Compression - Harley Twin Cam
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Specifications
| BRAND | Wiseco |
| TYPE | Black |
| SKU | K2790 |
| PART NUMBER | K2790 |
| DISPLACEMENT | 103 CID |
| COMPRESSION RATIO | 9.6:1 |
| COATINGS | Armor X and ArmorGlide |
| COMPRESSION RING | Premium |
| SECOND RING | Napier, taper face with underhook |
| OIL RING | 3mm, higher tension |
| WEIGHT | 2.4 lb |
| 9.6 | 1 Compression |
Fitment
Fits these motorcycles
Listed per manufacturer fitment data. Not sure? Email us and we confirm before you order.
The Wiseco Black Edition piston kit is built for 103 cubic inch V-twin engines and provides a 9.6:1 compression ratio. The pistons carry Armor X and ArmorGlide coatings, with Armor X providing significant wear reduction on the piston and ArmorGlide reducing friction on the skirt for quieter operation. The kit is engineered to work with both OEM and Screamin' Eagle cylinder heads.
The ring package is a key part of the design. A premium compression ring is included for an ultimate seal and improved power delivery. A Napier second ring with taper face and underhook supports enhanced oil control, and a 3mm oil ring with higher tension provides superior oil management. Together these components are intended to help the engine hold compression and manage oil through demanding riding.
Riders choose this kit when they want a noticeable increase in power and responsiveness from a performance-oriented 103 build. The 9.6:1 compression ratio is a common target for these builds, and the coatings and ring package give the assembly a durable foundation for the upgrade.
For off-road / closed-course race use only.
Specifications
- Brand: Wiseco
- Part Number: K2790
- Displacement: 103 CID
- Compression Ratio: 9.6:1
- Coatings: Armor X and ArmorGlide
- Compression Ring: Premium
- Second Ring: Napier, taper face with underhook
- Oil Ring: 3mm, higher tension
- Weight: 2.4 lbs
Common questions
What compression ratio does this piston kit provide?
The Wiseco Black Edition piston kit provides a 9.6:1 compression ratio.
What coatings are on the pistons?
The pistons feature Armor X coating on the piston and ArmorGlide coating on the skirt. Armor X provides significant wear reduction and ArmorGlide reduces friction.
What ring package does the kit use?
The kit uses a premium compression ring, a Napier second ring with taper face and underhook, and a 3mm oil ring with higher tension.
