{"product_id":"s-s-cycle-power-packs-harley-davidson-13","title":"S\u0026S Cycle Power Packs — Harley-Davidson Electra Glide, Softail Heritage Classic, Electra Glide Classic (1955-2026)","description":"\u003cp\u003eS\u0026amp;S Cycle Power Packs are forged piston sets engineered to increase displacement and horsepower in Harley-Davidson engines. Direct bolt-in replacement that delivers measurable power gains over stock pistons.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eForged piston construction\u003c\/li\u003e\n  \u003cli\u003eIncreased displacement vs. stock pistons\u003c\/li\u003e\n  \u003cli\u003eDirect bolt-in installation\u003c\/li\u003e\n  \u003cli\u003eS\u0026amp;S Cycle engineering\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 310-1396A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Engine Components \/ Piston Sets - Powersports\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 44.19 lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits Harley-Davidson engines. Consult S\u0026amp;S Cycle's fitment guide or contact V-Twin Bikers to confirm compatibility with your specific engine displacement and model year.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eDo I need new cylinders or can I use stock bores?\u003c\/h3\u003e\n\u003cp\u003ePower Packs are designed as a direct bolt-in upgrade for stock cylinder bores. Verify bore size matches your engine before ordering.\u003c\/p\u003e\n\u003ch3\u003eWill I need to tune my bike after installing these pistons?\u003c\/h3\u003e\n\u003cp\u003eYes — a fuel and ignition tune is strongly recommended to optimize performance gains from the increased displacement.\u003c\/p\u003e\n\u003ch3\u003eWhat horsepower increase can I expect?\u003c\/h3\u003e\n\u003cp\u003eGains depend on engine displacement, heads, cam, and tune. Contact S\u0026amp;S Cycle or your Harley tuner for estimates specific to your build.\u003c\/p\u003e\n\u003ch3\u003eAre these pistons street-legal?\u003c\/h3\u003e\n\u003cp\u003ePower Packs are engine components; legality depends on your state's emissions rules. Check local regulations before installation.\u003c\/p\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":53040420421743,"sku":"T14-1020386","price":3294.95,"currency_code":"USD","in_stock":false}],"url":"https:\/\/vtwinbikers.com\/products\/s-s-cycle-power-packs-harley-davidson-13","provider":"Vtwinbikers","version":"1.0","type":"link"}