Does it fit your motorcycle?
Look it up by licence plate or VIN, or choose your model.
Confirmed compatible · Position:
This part doesn't fit your bike. See parts that fit
Fits most motorcycles
Not model-specific. Check dimensions and specifications in the description before ordering.
Chosen by size, not by model
The size is printed on the tyre sidewall, e.g. 120/70 ZR17, and in your registration document.
Checking fitment…
Fitment check unavailable
S&S Cycle M8 Big Bore Kit - 4.320" Bore - 132ci - Black - 910-0909A
Product info
- Item number
- 09040151
- Manufacturer number
- 910-0909A
- Position
Unleash the full potential of your Harley-Davidson Milwaukee-Eight engine with the S&S Cycle 132"/136" Big Bore High Compression Kit. Designed for serious performance enthusiasts, this kit delivers a significant power and torque boost, transforming your ride into a high-performance machine. Experience the thrill of enhanced acceleration and responsiveness across the entire RPM range.
Description
The S&S Cycle Big Bore Kit offers two displacement options: 132" and 136". The 132" high compression configuration is compatible with 114" and 117" engines utilizing 4.5" stroke flywheels. To achieve the maximum 136" displacement, an S&S flywheel with a 4-5/8" stroke is necessary. This kit features high-quality cylinders with highlighted fins for superior cooling and a striking aesthetic. The +8.5cc dome volume contributes to the increased compression, resulting in optimal combustion and maximum power output. Upgrade your engine with confidence, knowing you're getting proven S&S Cycle performance and reliability. Installation requires precision and expertise; professional installation is highly recommended to ensure optimal performance and longevity.
Features & highlights
- Dramatically increases horsepower and torque for superior performance.
- High compression design optimizes combustion for maximum power output.
- Cylinders feature highlighted fins for enhanced cooling and a custom look.
- Available in 132" and 136" displacement options to suit your specific needs.
- Engineered and manufactured by S&S Cycle, a trusted name in high-performance motorcycle components.
- Transform your Milwaukee-Eight into a true powerhouse.
Technical specifications
- Brand: S&S Cycle
- Bore Size: 4.320"
- Displacement: 132", 136"
- Stroke Length: 4.5", 4-5/8"
- Compression: High Compression
- Cylinder Color/Finish: Black, Highlighted Fins
- Dome Volume: +8.5 cc
- Type: Big Bore Kit
Important to know
The 132" high compression kit is designed for use on 114"/117" motors with 4.5" stroke flywheels only. To achieve the 136" big bore configuration, an S&S flywheel with a 4-5/8" stroke is required (sold separately).
- Brand
- S&S CYCLE
- Vendor part number
- 910-0909A
- Color finish
- Black, Highlighted Fins
- Product name
- Big Bore Kit
- Bore size
- 4,320"
- Displacement
- 132", 136"
- Stroke length
- 4-1/2", 4-5/8"
- Features
- +8.5 cc Dome Volume
- Type
- High Compression
- Units
- Kit
Free shipping to a GLS parcel shop or parcel box on orders over €200.
We ship your order as quickly as we can. Orders are usually packed within 24 hours on weekdays.
You have a 14-day right of return. Read more
Certified e-mærket web shop
