{"product_id":"wiseco-v-twin-piston-kit-1340-evo-big-twin-8-5-1-comp-k1640","title":"Wiseco V-Twin Piston Kit - 1340 EVO BIG Twin 8.5:1 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 at 8.5:1 compression ratio. High-silicon aluminum construction delivers strength and heat transfer for long-term reliability in stock and mildly modified applications.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eForged high-silicon aluminum with low expansion rate\u003c\/li\u003e\n  \u003cli\u003eDiamond-turned finish eliminates size variation\u003c\/li\u003e\n  \u003cli\u003eCompatible with cast iron, chrome, nikasil, and boron composite cylinder bores\u003c\/li\u003e\n  \u003cli\u003eReduced weight compared to OEM cast pistons\u003c\/li\u003e\n  \u003cli\u003eState-of-the-art CNC manufacturing\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 K1640\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e 1340cc EVO Big Twin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompression Ratio:\u003c\/strong\u003e 8.5:1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.98 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits V-twin motorcycles with 1340cc EVO Big Twin engines, including Harley-Davidson Touring and Softail models from that generation.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat compression ratio are these pistons?\u003c\/h3\u003e\n\u003cp\u003e8.5:1 compression ratio, suitable for pump gasoline and stock EVO applications.\u003c\/p\u003e\n\u003ch3\u003eCan I use these in my resleeved cylinders?\u003c\/h3\u003e\n\u003cp\u003eYes. Wiseco pistons work in cast iron, chrome, nikasil, and boron composite cylinders, and can be used in resleeved cylinders as well.\u003c\/p\u003e\n\u003ch3\u003eDo these pistons require new rings and pins?\u003c\/h3\u003e\n\u003cp\u003eConfirm ring and pin specifications with your machine shop. Complete kits typically include rings and pins — check your order contents.\u003c\/p\u003e\n\u003ch3\u003eWill these fit my Twin Cam or Milwaukee-Eight engine?\u003c\/h3\u003e\n\u003cp\u003eNo — this kit is for 1340cc EVO Big Twin engines only. Twin Cam and M8 engines require different piston kits.\u003c\/p\u003e","brand":"Wiseco","offers":[{"title":"Default Title","offer_id":53035617583215,"sku":"K1640","price":399.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_55caea15-5b61-4536-adf6-9ab3b2b7aef2.png?v=1779563455","url":"https:\/\/vtwinbikers.com\/products\/wiseco-v-twin-piston-kit-1340-evo-big-twin-8-5-1-comp-k1640","provider":"Vtwinbikers","version":"1.0","type":"link"}