S&S Cycle Finned Cylinder & Piston Kit - Harley Milwaukee-Eight
About S&S Cycle
S&S Cycle has built American V-twin performance parts in Viola, Wisconsin since 1958 — flywheels, carburetors, cams, cylinder heads and complete crate engines. When a Harley owner talks about a 124, a 128 or a 131 build, they are usually talking about S&S. Few names carry more weight with engine builders in this space.
Elevate your Harley Milwaukee-Eight's performance with the S&S Cycle finned cylinder and piston kit. This complete displacement upgrade assembly is engineered for both street and competition use, providing a substantial power increase over stock. The integrated finned cylinder construction ensures superior cooling, crucial for high-performance applications.
Why riders pick this
- Finned cylinder design for enhanced cooling
- Complete piston and cylinder assembly
- Direct fitment for Milwaukee-Eight engines
- Engineered for street and competition use
- Includes pistons, rings, and pins
The S&S Cycle finned cylinder and piston kit is a robust performance upgrade for Harley Milwaukee-Eight (M8) engines. This comprehensive assembly is designed to deliver increased displacement, translating directly into more horsepower and torque for your V-twin. A key feature is the finned cylinder design, which significantly enhances cooling efficiency. This improved heat dissipation is vital for maintaining optimal engine temperatures during aggressive riding or high-performance demands, ensuring reliability and consistent power delivery for both street and track use.
Enhanced Cooling and Displacement
- Finned cylinder design for superior heat dissipation
- Complete piston and cylinder assembly for a seamless upgrade
- S&S Cycle engineering for reliable performance
- Direct fitment for Milwaukee-Eight (M8) engines
- Designed for both street and competition use
Engineered for M8 Performance
This S&S Cycle kit represents a commitment to performance, providing a complete and engineered solution for your Milwaukee-Eight. The included pistons, rings, and pins ensure that you have everything needed for a drop-in displacement upgrade. Beyond the raw power, the focus on cooling through the finned design underscores S&S Cycle's understanding of what it takes to build a durable, high-output V-twin engine. It's the ideal choice for riders who demand maximum performance and longevity from their M8.
Specifications
- Brand: S&S Cycle
- Manufacturer Part #: 910-0911A
- Category: Engine Components / Piston Sets - Powersports
- Weight: 30 lb
Common questions
Will this kit work on Twin Cam engines?
No, this S&S Cycle kit is specifically engineered for the Harley Milwaukee-Eight (M8) platform. Twin Cam engines require different displacement kits due to their distinct architecture.
Do I need a new fuel map after installation?
Yes. Any displacement upgrade, like this S&S Cycle kit, requires professional dyno tuning and ECM recalibration to ensure optimal performance, proper air-fuel ratios, and long-term reliability for your engine.
What's included in the kit?
The kit includes the complete finned cylinder assembly with matched pistons, piston rings, and wrist pins – everything necessary for a comprehensive drop-in displacement upgrade.
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 | S&S Cycle |
| TYPE | Piston Sets - Powersports |
| SKU | T14-871889 |
| WEIGHT | 30.0 lb |
