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S&S Big Bore Kit for M-Eight Engine

S&S Big Bore Kit for M-Eight Engine

This part is bike specific. It will not fit all makes / models / years.

If you enter fitment information, we'll only show you the options that work for your bike.

$ 970.16 Reg $ 1,099.95 $ 129.79 Savings Add to Cart to See Lowest Price Enter your bike's fitment to see our inventory levels. Free Shipping Eligible! $0.00 Tax Collected Outside Ohio
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Product Overview

Bolt-on kit, the largest cylinder bore possible without requiring machining of the crankcases

107 to 124" Big Bore Kit Features:

4.250" bore, 11:1 compression ratio Forged pistons
All necessary gaskets and hardware required for installation included
For use on factory 107 Milwaukee Eight motors
Made in the U.S.A.

114 to 128: Big Bore Kit Features:

4.5" Bore, 11:1 Compression ratio Forged Pistons
All necessary gaskets and hardware required for installation included
For use on factory 114 Milwaukee Eight motors
Made in the U.S.A

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