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

Available for both 107 and 114 M8 models.Available in both highlighted and non highlighted versionsWrinkle black finishNon-highlighted finsBolt-on kit. Largest bore possible without machining requiredincludes gaskets and hardware required for installation4