Wiseco Black Edition 103 CID 10.5:1 Piston Kit - 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.
Elevate your Twin Cam 103 CID engine's performance with the Wiseco Black Edition Piston Kit. Engineered for a 10.5:1 compression ratio, these pistons are built to deliver increased power and enhanced durability for your Harley-Davidson or Indian Motorcycle.
Why riders pick this
- Boosts compression to 10.5:1 for increased power
- Advanced Armor X and ArmorGlide coatings reduce wear and friction
- Optimized ring design for superior oil control and sealing
- Compatible with OEM and Screamin' Eagle cylinder heads
- Durable forged construction for V-twin engines
These Wiseco Black Edition pistons are forged for strength and treated with advanced coatings to ensure long-lasting performance in your V-twin. The Armor X and ArmorGlide coatings significantly reduce friction and wear, while the precision-engineered ring package provides excellent sealing and oil control. This kit is a direct fit for Twin Cam 103 CID engines, compatible with both OEM and Screamin' Eagle cylinder heads, making it a reliable choice for a performance upgrade.
Optimized for Peak Performance
- Premium compression ring for an ultimate seal against combustion gases
- Napier second ring with taper face and underhook for superior oil control
- 3mm oil ring design with higher tension for enhanced lubrication management
- Armor X piston coating reduces wear and extends piston life
- ArmorGlide skirt coating minimizes friction and improves scuff resistance
A Foundation for Power
Building a high-performance Twin Cam 103 requires components that can handle the extra demands, and these Wiseco Black Edition pistons are up to the task. The 10.5:1 compression ratio is an excellent choice for riders seeking a noticeable increase in throttle response and horsepower. Ensure your engine is properly assembled and tuned by a professional to get the most out of this upgrade, transforming your ride into a true V-twin powerhouse.
Specifications
- Brand: Wiseco
- Manufacturer Part #: K2794
- Engine: Twin Cam 103 CID 10.5:1
- Length: 9 in
- Width: 4 in
- Height: 4 in
- Weight: 2.4 lbs
Common questions
Will this kit work with my stock Harley heads?
Yes, these Wiseco Black Edition pistons are compatible with both OEM Harley-Davidson and Screamin' Eagle cylinder heads on Twin Cam 103 CID engines.
Is a custom tune required after installing these pistons?
Yes, a custom dyno tune is highly recommended after installing pistons that change the compression ratio to optimize fuel delivery and ignition timing, ensuring peak performance and engine health.
Are these pistons designed for a standard bore or an oversized bore?
This specific kit is for a standard bore Twin Cam 103 CID engine. Please confirm your cylinder bore requirements before ordering.
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 | K2794 |
| WEIGHT | 2.4 lb |
