Wiseco Black Edition Piston Kit TC 103 CID 9:1 Compression - Harley Twin Cam
About Wiseco
Wiseco has forged pistons in Mentor, Ohio since 1941, supplying everything from factory race teams to big-bore street builds. Forged construction is what lets a V-twin survive higher compression and more cylinder pressure than the stock cast piston was designed for.
The Wiseco Black Edition piston kit is engineered for Twin Cam 103 CID engines, providing a 9:1 compression ratio ideal for stock and mildly modified cylinder heads. This kit features premium ring packages with Armor X and ArmorGlide coatings, designed to reduce wear, friction, and noise while maintaining OEM compatibility.
Why riders pick this
- Optimal 9:1 compression for Twin Cam 103 engines
- Armor X and ArmorGlide coatings reduce wear and friction
- Premium ring package for superior oil control and sealing
- Compatible with OEM and Screamin' Eagle cylinder heads
- Designed for durability and reduced operating noise
When it's time to refresh your Twin Cam 103 or build a stronger foundation, the Wiseco Black Edition piston kit delivers. These pistons are crafted to offer a precise 9:1 compression ratio, making them a solid choice for engines running stock or modestly upgraded cylinder heads. The advanced coatings ensure longevity and smooth operation, critical for any performance V-twin.
Engineered for Performance and Durability
- Premium compression ring design for an optimal ring seal
- Napier second ring with taper face and underhook for superior oil control
- 3mm oil ring design featuring higher tension for enhanced oil management
- Armor X piston coating reduces wear in critical areas
- ArmorGlide skirt coating minimizes friction and improves scuff resistance
- Compatible with both OEM and Screamin' Eagle cylinder heads
Build with Confidence
Wiseco Black Edition pistons are a cornerstone for reliable engine builds, whether you're replacing worn components or planning a mild performance upgrade. The careful design ensures compatibility with existing cylinder heads, simplifying the upgrade path. These pistons are ready to handle the demands of the open road, providing a durable and efficient foundation for your Twin Cam 103.
Specifications
- Brand: Wiseco
- Manufacturer Part #: K2788
- Engine Displacement: Twin Cam 103 CID
- Compression Ratio: 9:1
- Length: 9 in
- Width: 4 in
- Height: 4 in
- Weight: 2.4 lbs
Common questions
Will this piston kit work with my stock Harley cylinder head?
Yes, Wiseco designed this kit to work seamlessly with both OEM Harley-Davidson cylinder heads and Screamin' Eagle performance heads for the Twin Cam 103.
What compression ratio does this piston kit provide?
This Wiseco Black Edition piston kit delivers a 9:1 compression ratio, suitable for stock and mildly modified Twin Cam 103 engines.
Are special tools required for installation?
Installation typically requires standard engine building tools. However, precise measurements and careful assembly are crucial for proper function and longevity.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Wiseco |
| TYPE | Black |
| SKU | K2788 |
| WEIGHT | 2.4 lb |
| 9 | 1 Compression |
