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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 # | Store Sku | MFR. Product # | Availability |
---|---|---|---|---|
Product Style Black w/ Highlighted Fins | RevZilla Item #1591335 | Store Sku | MFR. Product #910-0684 | AvailabilityIn Stock: Ships in 1-2 business days |
Product Style Black w/ No Highlight | RevZilla Item #1591334 | Store Sku | MFR. Product #910-0685 | AvailabilityIn Stock: Ships in 1-2 business days |
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Product Description
Part Numbers
Fitment
2 Customer Reviews
3.5/5
9 Questions & 3 Answers
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