124" and 128" Big Bore Kits for Milwaukee-Eight - 124" Big Bore Kit M8 Blk

Retail Price: $1,561.95
You save: $231.00 (15%)
Our Price: $1,330.95

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Details

Model: 910-0681
Shipping Weight: 40.1lbs
12 Units in Stock
Manufactured by: S&S

Description

124" Big Bore Kit M8 Blk

Color: Black
Size: 107" to 124"

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 Cycle Big Bore Kits for Milwaukee-Eight engines are designed to deliver outstanding performance with stock cylinder heads. These kits allow you to upgrade from a 107" to 124" or a 114" to 128" displacement without the need for complex machining or case splitting, making installation straightforward. The cylinders are made from high-quality aluminum castings with cast-in iron liners for durability and reliability. Each kit includes everything needed for assembly: cylinders, forged pistons, rings, and a complete set of gaskets (head, base, and exhaust). The bore size is 4.250", and the pistons achieve an 11:1 compression ratio, delivering a significant boost in power and performance. The kits are available in a wrinkle black or black granite finish, with optional highlighted fins for a customized look. This bolt-on solution represents the largest bore upgrade possible without requiring additional machining. However, it is essential that installation is performed by a skilled technician to ensure proper clearances and assembly specifications.