{"product_id":"s-s-cycle-power-packs-harley-davidson-12","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 for Harley-Davidson engines to increase displacement and power output when paired with compatible cylinders. Built to OEM-spec tolerances for reliable performance in high-output engine builds.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eForged piston construction\u003c\/li\u003e\n  \u003cli\u003eIncreases engine displacement with compatible 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 310-1389A\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\u003eDesigned for Harley-Davidson engines. Requires compatible cylinders and components to realize displacement and power gains. Verify fitment with your specific engine size and build plan before ordering.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat cylinders do these pistons work with?\u003c\/h3\u003e\n\u003cp\u003eS\u0026amp;S Cycle Power Packs are engineered to work with compatible S\u0026amp;S and third-party cylinders. Consult S\u0026amp;S Cycle tech support to confirm compatibility with your specific build.\u003c\/p\u003e\n\u003ch3\u003eDo I need any other parts besides pistons and cylinders?\u003c\/h3\u003e\n\u003cp\u003eYes — pistons alone require compatible cylinders, rings, and proper installation by a qualified engine builder. This is not a standalone upgrade.\u003c\/p\u003e\n\u003ch3\u003eWhat displacement increase can I expect?\u003c\/h3\u003e\n\u003cp\u003eDisplacement gain depends on cylinder bore and stroke pairing. Consult S\u0026amp;S Cycle documentation for your specific piston and cylinder combination.\u003c\/p\u003e\n\u003ch3\u003eAre these forged pistons reliable for street riding?\u003c\/h3\u003e\n\u003cp\u003eForged construction is built for high-output performance. Reliability depends on proper installation, tuning, and maintenance by a qualified builder.\u003c\/p\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":53040420388975,"sku":"T14-1020384","price":3294.95,"currency_code":"USD","in_stock":false}],"url":"https:\/\/vtwinbikers.com\/products\/s-s-cycle-power-packs-harley-davidson-12","provider":"Vtwinbikers","version":"1.0","type":"link"}