{"product_id":"wiseco-v-twin-piston-kit-1340-evo-big-twin-10-1-comp-k1666","title":"Wiseco V-Twin Piston Kit - 1340 EVO BIG Twin 10:1 Comp — Harley-Davidson Electra Glide Classic, Softail Custom, Softail Heritage Classic (1984-1999)","description":"\u003cp\u003eWiseco forged piston kit for 1340cc EVO Big Twin engines with 10:1 compression ratio. High-silicon aluminum construction delivers strength and heat transfer for reliable performance across cast iron, chrome, nikasil, and boron composite cylinder bores.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-silicon, low-expansion forged aluminum\u003c\/li\u003e\n  \u003cli\u003eDiamond-turned finish from CNC precision machining\u003c\/li\u003e\n  \u003cli\u003eCompatible with cast iron, chrome, nikasil, and boron composite cylinders\u003c\/li\u003e\n  \u003cli\u003eReduced weight and improved heat dissipation\u003c\/li\u003e\n  \u003cli\u003eOversized options available for rebored or sleeved cylinders\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 Wiseco\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e K1666\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompression Ratio:\u003c\/strong\u003e 10:1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e 1340cc EVO Big Twin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.8752 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits Harley-Davidson 1340cc EVO Big Twin engines with standard and oversized bore specifications.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWill this piston kit work in my chrome or nikasil cylinders?\u003c\/h3\u003e\n\u003cp\u003eYes — Wiseco pistons are engineered to perform reliably in cast iron, chrome, nikasil, and boron composite cylinder bores without modification.\u003c\/p\u003e\n\u003ch3\u003eCan I use oversized Wiseco pistons if my cylinders are bored out?\u003c\/h3\u003e\n\u003cp\u003eYes. Wiseco offers oversize options for rebored cast iron cylinders and for resleeved chrome, nikasil, and boron composite cylinders.\u003c\/p\u003e\n\u003ch3\u003eWhat compression ratio is this kit?\u003c\/h3\u003e\n\u003cp\u003eThis kit is 10:1 compression ratio, suitable for stock and mildly modified 1340 EVO engines.\u003c\/p\u003e\n\u003ch3\u003eIs installation a DIY job, or do I need a shop?\u003c\/h3\u003e\n\u003cp\u003ePiston installation requires engine disassembly, machine work, and precise ring gap setting — professional machine shop installation is recommended.\u003c\/p\u003e","brand":"Wiseco","offers":[{"title":"Default Title","offer_id":53035618566255,"sku":"K1666","price":447.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_2bf78121-0431-4297-82d7-ed42e1b8d57f.png?v=1779563463","url":"https:\/\/vtwinbikers.com\/products\/wiseco-v-twin-piston-kit-1340-evo-big-twin-10-1-comp-k1666","provider":"Vtwinbikers","version":"1.0","type":"link"}