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.
Unleash the full potential of your Twin Cam 103 CID engine with the Wiseco Black Edition Piston Kit. Engineered for performance and durability, this kit delivers a 10.5:1 compression ratio, optimizing power output for your Harley-Davidson or Indian Motorcycle V-twin.
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 construction for high-performance Twin Cam engines
These Wiseco Black Edition pistons are designed to stand up to the demands of high-performance V-twin engines. Featuring advanced coatings and a robust ring design, they reduce friction, minimize wear, and enhance oil control, ensuring your engine runs stronger for longer. This kit maintains compatibility with both OEM and Screamin' Eagle cylinder heads, making it a straightforward upgrade for riders looking to uncork more power.
Engineered for Durability and 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
Optimized for Your Twin Cam Build
Whether you're refreshing an older Twin Cam or building a new performance engine, these Wiseco Black Edition pistons provide a solid foundation. The 10.5:1 compression ratio is a sweet spot for many performance builds, offering a noticeable bump in power without being overly aggressive for street use. Pair these with a performance cam and a proper dyno tune to truly transform your ride.
Specifications
- Brand: Wiseco
- Manufacturer Part #: K2792
- Engine Displacement: 103 CID
- Compression Ratio: 10.5:1
- Length: 9 in
- Width: 4 in
- Height: 4 in
- Weight: 2.4 lbs
Common questions
Will these pistons work with my stock cylinder heads?
Yes, this Wiseco Black Edition piston kit is designed to be compatible with both OEM Harley-Davidson and Screamin' Eagle cylinder heads.
Do I need to get my engine tuned after installing these pistons?
Yes, anytime you change internal engine components like pistons that alter compression, a dyno tune is highly recommended to ensure optimal performance and engine longevity.
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 | K2792 |
| WEIGHT | 2.4 lb |
