Wiseco Black Edition Piston Kit 124" 11:1 Compression - Harley Milwaukee-Eight
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 delivers robust performance for Harley-Davidson Milwaukee-Eight big bore applications. These forged pistons are engineered for 124-inch displacement with an 11:1 compression ratio, providing a significant power boost for your V-twin.
Why riders pick this
- Forged construction for extreme durability
- 11:1 compression ratio for enhanced power output
- Advanced piston and skirt coatings for reduced friction
- Premium ring package for superior sealing and oil control
- Compatible with OEM and Screamin' Eagle cylinder heads
Unlock the full potential of your Milwaukee-Eight engine with the Wiseco Black Edition Piston Kit. Designed for 124-inch big bore configurations, these forged pistons are built to withstand the demands of high-performance V-twin engines. Featuring advanced coatings and premium rings, this kit ensures enhanced durability and reduced friction, translating to more power and a longer engine life for your Harley Touring or Softail.
Engineered for Milwaukee-Eight Performance
- Forged construction for superior strength and reliability
- Premium compression ring for ultimate ring seal and power retention
- Napier second ring with specialized design for optimal oil control
- Armor X piston coating reduces wear and extends component life
- ArmorGlide skirt coating minimizes friction and resists scuffing
- Compatible with both OEM and Screamin' Eagle cylinder heads
Big Bore Power for Your Harley
This Wiseco Black Edition Piston Kit is a critical component for any serious Milwaukee-Eight big bore build. The 11:1 compression ratio is optimized for performance, providing a noticeable increase in torque and horsepower. Whether you're upgrading an Electra Glide, Road King, or Street Glide, these pistons are designed to integrate seamlessly, offering a direct path to a more powerful and responsive ride. Confirm fitment with your specific year and model before ordering.
Specifications
- Brand: Wiseco
- Manufacturer Part #: K2787
- Displacement: 124 cubic inches
- Compression Ratio: 11:1
- Weight: 3 lbs
Common questions
Will this piston kit work with my existing cylinder heads?
Yes, these Wiseco Black Edition pistons are specifically engineered to be compatible with both OEM Harley-Davidson cylinder heads and Screamin' Eagle performance heads.
Is this kit for a specific engine displacement?
This piston kit is designed for 124-inch big bore applications within the Milwaukee-Eight engine family, delivering an 11:1 compression ratio.
Do I need to do any machine work to install these pistons?
This kit is intended for 124-inch big bore applications. Consult with a qualified engine builder to ensure proper cylinder preparation and fitment for your specific Milwaukee-Eight engine.
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 | Engine |
| SKU | K2787 |
| WEIGHT | 3.0 lb |
