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Product Details
Product Description
Part Numbers
Fitment
S&S 128" Big Bore Kit For Harley 114" Milwaukee Eight
Upgrade your 114" M8 motor to the largest bore size possible, without required machining of your cases. This is as simple as big power gets, with everything necessary for installation included.
Features:
- Bolt-on kit, the largest cylinder bore possible for 114" M8 motors without required machining of the crankcases
- 4.250" bore, 4.500" stroke
- 11:1 forged pistons with rings, pins and clips
- All gaskets and hardware required for installation included
- Made in the USA

Product Style | RevZilla Item # | MFR. Product # | Availability |
---|---|---|---|
Product Style Black w/ Highlighted Fins | RevZilla Item #1591335 | MFR. Product #910-0684 | AvailabilityIn Stock: Ships in 1-2 business days |
Product Style Black w/ No Highlight | RevZilla Item #1591334 | MFR. Product #910-0685 | AvailabilityAvailable: Ships in 3-5 business days |
This Product Fits
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Product Description
Part Numbers
Fitment
1 Customer Reviews
4/5
6 Questions & 3 Answers
Reviews & Questions
1 Customer Reviews
6 Questions & 3 Answers