{"product_id":"wiseco-black-edition-piston-kit-tc-103-cid-9-1-k2788","title":"Wiseco Black Edition Piston Kit - TC 103 CID 9:1 — Harley-Davidson Road King, Electra Glide Ultra Classic, Softail Heritage Classic (1999-2017)","description":"\u003cp\u003eWiseco Black Edition piston kit for Twin Cam 103 CID engines at 9:1 compression ratio, engineered for stock and mildly modified heads. Features premium ring package with Armor X and ArmorGlide coatings to reduce wear, friction, and noise while maintaining OEM compatibility.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePremium compression ring for ultimate ring seal\u003c\/li\u003e\n  \u003cli\u003eNapier second ring with taper face and underhook for improved oil control\u003c\/li\u003e\n  \u003cli\u003e3mm oil ring design with higher tension for enhanced oil control\u003c\/li\u003e\n  \u003cli\u003eArmor X piston coating reduces wear\u003c\/li\u003e\n  \u003cli\u003eArmorGlide skirt coating reduces friction and improves scuff resistance\u003c\/li\u003e\n  \u003cli\u003eCompatible with OEM and Screamin' Eagle cylinder heads\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 K2788\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEngine Displacement:\u003c\/strong\u003e Twin Cam 103 CID\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompression Ratio:\u003c\/strong\u003e 9:1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 9 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 4 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 4 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.4 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits V-twin motorcycles with Twin Cam 103 CID engines and compatible head casting.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWill this piston work with my stock Harley cylinder head?\u003c\/h3\u003e\n\u003cp\u003eYes — Wiseco designed this kit to work with OEM Harley cylinder heads and Screamin' Eagle performance heads.\u003c\/p\u003e\n\u003ch3\u003eWhat compression ratio does this give me?\u003c\/h3\u003e\n\u003cp\u003eThis kit delivers 9:1 compression, suitable for stock and mildly modified engines running pump fuel.\u003c\/p\u003e\n\u003ch3\u003eDo I need to retune my ECM after installation?\u003c\/h3\u003e\n\u003cp\u003eConsult your tuner. A 9:1 compression ratio typically requires a fuel map adjustment for optimal performance.\u003c\/p\u003e\n\u003ch3\u003eWhat's the Armor X and ArmorGlide coating do?\u003c\/h3\u003e\n\u003cp\u003eArmor X reduces piston wear, while ArmorGlide on the skirt reduces friction and improves scuff resistance for quieter, longer-lasting operation.\u003c\/p\u003e","brand":"Wiseco","offers":[{"title":"Default Title","offer_id":53035857707119,"sku":"K2788","price":1957000.0,"currency_code":"COP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/1f79-5d4da6c85ea1e.jpg?v=1777529782","url":"https:\/\/vtwinbikers.com\/en-co\/products\/wiseco-black-edition-piston-kit-tc-103-cid-9-1-k2788","provider":"Vtwinbikers","version":"1.0","type":"link"}