{"product_id":"s-s-cycle-cylinder-piston-kits-harley-davidson-touring-1","title":"S\u0026S Cycle Cylinder \u0026 Piston Kits — Harley-Davidson Electra Glide, Electra Glide Classic, Electra Glide Ultra Classic (1955-2026)","description":"\u003cp\u003eS\u0026amp;S Cycle cylinder and piston kit for 2017+ Harley-Davidson Touring with Milwaukee-Eight engines, engineered to increase displacement and horsepower over factory M8 specification. Precision-machined pistons and cylinder bores deliver repeatable performance gains on stock or modified engines.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e4.250 in x 4.375 in bore and stroke\u003c\/li\u003e\n  \u003cli\u003eDesigned for 2017+ M8 Touring engines\u003c\/li\u003e\n  \u003cli\u003ePrecision-machined pistons and cylinders\u003c\/li\u003e\n  \u003cli\u003eS\u0026amp;S Cycle engineering and quality control\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 920-0135\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisplacement \/ Size:\u003c\/strong\u003e 4.250 in x 4.375 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.22 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 Touring models with Milwaukee-Eight (M8) engines.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWill this fit my pre-2017 Touring with Twin Cam?\u003c\/h3\u003e\n\u003cp\u003eNo — this kit is designed specifically for 2017+ Milwaukee-Eight engines. Twin Cam Touring models require a different S\u0026amp;S Cycle piston and cylinder kit.\u003c\/p\u003e\n\u003ch3\u003eWhat kind of horsepower increase can I expect?\u003c\/h3\u003e\n\u003cp\u003eHorsepower gain depends on engine tuning, fuel octane, and other modifications. Consult S\u0026amp;S Cycle's performance charts or contact a Harley tuner for your specific setup.\u003c\/p\u003e\n\u003ch3\u003eDo I need to rejet or retune the carb after installation?\u003c\/h3\u003e\n\u003cp\u003eYes — a fuel and air recalibration is recommended to optimize performance with the increased displacement. Have a professional tuner calibrate your ECU.\u003c\/p\u003e\n\u003ch3\u003eIs installation a DIY job or does it require a shop?\u003c\/h3\u003e\n\u003cp\u003eThis is an advanced engine buildup requiring motor removal, machine work, and precise assembly. Professional installation at a qualified Harley shop is strongly recommended.\u003c\/p\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":53040430219375,"sku":"T14-663092","price":648.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_1829fc04-7d21-4189-8f5d-5b0d09a6f198.png?v=1779567162","url":"https:\/\/vtwinbikers.com\/products\/s-s-cycle-cylinder-piston-kits-harley-davidson-touring-1","provider":"Vtwinbikers","version":"1.0","type":"link"}