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S&S Cycle M8 128in. Big Bore Kits

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Product Information

Available for both 107 and 114 M8 models.
Available in both highlighted and non highlighted versions
Wrinkle black finish
Non-highlighted fins
Bolt-on kit. Largest bore possible without machining required
includes gaskets and hardware required for installation
4.250in. bore
Forged pistons
10.5:1 compression ratio
Made in USA