{"title":"Big Bore Kits","description":"","products":[{"product_id":"s-s-107-to-124-big-bore-kit-m8","title":"S\u0026S 107\" to 124\" Big Bore Kit for M8 Models","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe S\u0026amp;S 107\" to 124\" Big Bore Kit is a high-performance engine upgrade designed to convert Harley-Davidson Milwaukee-Eight 107\" engines with stock 4.375\" stroke crankshafts to 124 cubic inches. Built for riders looking to add serious displacement, horsepower, and torque, this kit delivers a major performance increase while maintaining a bolt-on installation with no crankcase machining required.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFeaturing a 4.250\" bore, forged pistons, an 11:1 compression ratio, and compatibility with stock crankcases and stock stroke crankshafts, this S\u0026amp;S Big Bore Kit is a great upgrade for 107\" M8 riders who want more power from their Milwaukee-Eight engine. Available in wrinkle black with highlighted fins or wrinkle black without highlighted fins, this kit gives riders both performance and finish options to match their build.\u003c\/span\u003e\u003c\/p\u003e","brand":"S\u0026S CYCLE","offers":[{"title":"Wrinkle Black w\/ Highlighted Fins","offer_id":40105444507813,"sku":"0931-1191","price":1643.95,"currency_code":"USD","in_stock":true},{"title":"Wrinkle Black","offer_id":40105444475045,"sku":"0931-1194","price":1643.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1365\/1661\/files\/SS_107_124_BIG_BORE_HIGHLIGHTED.jpg?v=1784085830"},{"product_id":"s-s-114-117-to-128-big-bore-kit-m8","title":"S\u0026S 114\"\/117\" to 128\" Big Bore Kit for M8 Models","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe S\u0026amp;S 114\"\/117\" to 128\" Big Bore Kit is a high-performance engine upgrade designed to convert Harley-Davidson Milwaukee-Eight 114\" and 117\" engines with stock 4.500\" stroke crankshafts to 128 cubic inches. Built for riders looking to add serious displacement, horsepower, and torque, this kit delivers a major performance increase while maintaining a bolt-on installation with no crankcase machining required.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFeaturing a 4.250\" bore, forged pistons, an 11:1 compression ratio, and compatibility with stock crankcases and stock stroke crankshafts, this S\u0026amp;S Big Bore Kit is a premium upgrade for 114\" and 117\" M8 riders who want more power from their Milwaukee-Eight engine. These kits also feature an updated cylinder design that allows compatibility with both Gen 1 and Gen 2 Milwaukee-Eight models. Available in wrinkle black with highlighted fins or wrinkle black without highlighted fins, this kit gives riders both performance and finish options to match their build.\u003c\/span\u003e\u003c\/p\u003e","brand":"S\u0026S CYCLE","offers":[{"title":"Wrinkle Black","offer_id":40105620308133,"sku":"0931-1195","price":1643.95,"currency_code":"USD","in_stock":true},{"title":"Wrinkle Black w\/ Highlighted Fins","offer_id":40105620406437,"sku":"0931-1193","price":1643.95,"currency_code":"USD","in_stock":true},{"title":"Black Granite w\/ highlighted Fins","offer_id":40105620439205,"sku":"0931-1192","price":1643.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1365\/1661\/files\/SS_114_117_128_BIG_BORE_HIGHLIGHTED.jpg?v=1784086850"},{"product_id":"s-s-107-to-129-big-bore-kit-m8","title":"S\u0026S 107\" to 129\" Big Bore Kit for M8 Models","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe S\u0026amp;S 107\" to 129\" Big Bore Kit is a high-performance engine upgrade designed to convert Gen 1 Harley-Davidson Milwaukee-Eight 107\" engines with stock 4.375\" stroke crankshafts to 129 cubic inches. Built for riders looking to add serious displacement, horsepower, and torque, this kit delivers a major performance increase for high-output M8 builds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned specifically for Gen 1 107\" Milwaukee-Eight engines, featuring a 4.320\" bore, forged pistons, an 11:1 compression ratio, this S\u0026amp;S Big Bore Kit gives riders a premium displacement upgrade while maintaining compatibility with stock 4.375\" stroke crankshafts. Available in wrinkle black with highlighted fins or wrinkle black without highlighted fins, this kit delivers the performance and finish options needed to match your build.\u003c\/span\u003e\u003c\/p\u003e","brand":"S\u0026S CYCLE","offers":[{"title":"Wrinkle Black w\/ Highlighted Fins","offer_id":51265967915254,"sku":"0931-1205","price":1643.95,"currency_code":"USD","in_stock":true},{"title":"Wrinkle Black","offer_id":51265967948022,"sku":"0931-1204","price":1643.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1365\/1661\/files\/SS_107_129_BIG_BORE_BLACK.jpg?v=1784088401"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1365\/1661\/collections\/SS_114_117_128_BIG_BORE_HIGHLIGHTED.jpg?v=1784087233","url":"https:\/\/www.kruesioriginals.com\/en-ca\/collections\/big-bore-kits.oembed","provider":"Kruesi Originals","version":"1.0","type":"link"}