{"product_id":"s-s-cycle-cylinder-piston-kits-harley-davidson-9","title":"S\u0026S Cycle Cylinder \u0026 Piston Kits — Harley-Davidson Street Glide, Softail Fat Boy 114, Road King Special (2017-2026)","description":"\u003cp\u003eS\u0026amp;S Cycle 4.25in bore x 4.5in stroke big bore cylinder and piston kit for 2017+ Harley-Davidson Milwaukee-Eight engines, rated 117–128 cubic inches. Forged pistons with 11:1 compression ratio bolt directly onto M8 blocks with no machine work required.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eForged pistons with 11:1 compression ratio\u003c\/li\u003e\n  \u003cli\u003e4.25in bore x 4.5in stroke\u003c\/li\u003e\n  \u003cli\u003eBolt-on installation — no machining required\u003c\/li\u003e\n  \u003cli\u003eIncludes gaskets and all mounting hardware\u003c\/li\u003e\n  \u003cli\u003eWrinkle black finish with highlighted fins\u003c\/li\u003e\n  \u003cli\u003eFor closed-course competition use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e S\u0026amp;S Cycle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e 910-0733A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore x Stroke:\u003c\/strong\u003e 4.25in x 4.5in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisplacement:\u003c\/strong\u003e 117–128 cubic inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompression Ratio:\u003c\/strong\u003e 11:1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePiston Type:\u003c\/strong\u003e Forged\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Wrinkle black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 29.75 lb\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Engine Components \/ Piston Sets - Powersports\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits 2017 and newer Harley-Davidson Milwaukee-Eight (M8) engines. For closed-course competition use only.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWill this fit my 2017+ M8 Touring or Softail?\u003c\/h3\u003e\n\u003cp\u003eYes — this kit fits all 2017+ Milwaukee-Eight engines. However, it is rated for closed-course competition only, not street use.\u003c\/p\u003e\n\u003ch3\u003eDo I need to have my cylinders machined?\u003c\/h3\u003e\n\u003cp\u003eNo. This is a true bolt-on kit — no machine work or custom boring required. Gaskets and hardware are included.\u003c\/p\u003e\n\u003ch3\u003eWhat compression ratio do these pistons deliver?\u003c\/h3\u003e\n\u003cp\u003e11:1. This is a high-compression ratio designed for premium fuel and competition tuning.\u003c\/p\u003e\n\u003ch3\u003eWhat's the displacement after installation?\u003c\/h3\u003e\n\u003cp\u003eThis kit displaces 117 to 128 cubic inches depending on final assembly and tuning.\u003c\/p\u003e\n\u003ch3\u003eIs this street legal?\u003c\/h3\u003e\n\u003cp\u003eNo — S\u0026amp;S rates this kit for closed-course competition use only. It is not approved for street riding.\u003c\/p\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":53040425861231,"sku":"T14-852160","price":1643.95,"currency_code":"USD","in_stock":false}],"url":"https:\/\/vtwinbikers.com\/products\/s-s-cycle-cylinder-piston-kits-harley-davidson-9","provider":"Vtwinbikers","version":"1.0","type":"link"}