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S&S Cycle 910-0625 M8 124in. Big Bore Kit - 4.250 Bore, 4.375 Stroke, Highlighted Fins - Black

Demon’s Part # 90000005574 Mfg. Part # 910-0625


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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.