S&S 128" Big Bore Kit Black Fits Milwaukee-Eight

$1,361.95

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Details

SKU: 910-0685
Manufacturer: S&S

Description

Color: Black
Size: 114" to 128"

California Restricted

California laws prohibit (in most cases) the use of any aftermarket product whose installation requires the removal of any emissions control related components as regulated by the California Air Resources Board (www.arb.ca.gov).

If an item is designated as "Competition and Racing Vehicles Only", we will require a race waiver be digitally signed before an item can ship to California. If an item is to be exported from California, an export waiver is available as well. This is a REQUIRED guarantee from you that a restricted item will NOT be used on any public highway in California; only on private race tracks in racing or competition use.

The S&S Big Bore Kits for Milwaukee-Eight engines are designed to maximize performance and enhance power output. These kits are compatible with both 107" and 114" M8 models and are available in configurations that expand engine displacement to either 124" or 128". Installation is straightforward as the kits are bolt-on and do not require case boring or splitting, making it a practical upgrade for enthusiasts. The cylinders are crafted from high-quality aluminum castings with integrated cast-iron liners for durability and heat resistance. The kit includes everything needed for installation: cylinders, forged pistons, rings, and gaskets (head, base, and exhaust). The 4.250" bore and 11:1 compression ratio deliver a significant power boost, making this an excellent option for riders seeking more performance. This upgrade is available in wrinkle black or black granite finishes and with or without highlighted fins, allowing for customization to match your bike's aesthetic. The project requires a skilled technician for assembly, as proper clearance and specifications must be checked during installation.