{"product_id":"kb-pistons-forged-alloy-piston-pistons-evo-80ci-10-5-1-020-824-01615","title":"Kb Pistons Forged Alloy Piston - Pistons EVO 80ci 10.5:1 .020 — Harley-Davidson (1984-1999)","description":"\u003cp\u003eKB Pistons forged alloy piston set for EVO 80ci engines with 10.5:1 compression and .020 overbore. Made from 4032 forged alloy with 11% silicon content and fully machined for superior crack resistance under detonation or pre-ignition, making them ideal for street and race applications running power adders like NOS or boost.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e4032 forged alloy with 11% silicon content\u003c\/li\u003e\n  \u003cli\u003eSuperior crack resistance under detonation or pre-ignition\u003c\/li\u003e\n  \u003cli\u003eCoated skirts on Twin Cam and Sportster applications\u003c\/li\u003e\n  \u003cli\u003eAll rings, wrist pins, and wrist pin locks included\u003c\/li\u003e\n  \u003cli\u003eSold as a pair\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 KB Pistons\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e KB921C.020\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 800745155382\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompression Ratio:\u003c\/strong\u003e 10.5:1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverbore:\u003c\/strong\u003e .020\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEngine Size:\u003c\/strong\u003e EVO 80ci\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.75 lbs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Mexico\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eDesigned for street and race applications with power adders such as NOS or boost on EVO 80ci engines.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat's included in this piston set?\u003c\/h3\u003e\n\u003cp\u003eA pair of forged pistons, rings, wrist pins, and wrist pin locks — everything needed for installation.\u003c\/p\u003e\n\u003ch3\u003eCan I use these without a power adder?\u003c\/h3\u003e\n\u003cp\u003eYes, these pistons work for street use. They're engineered to handle detonation and pre-ignition if you later add NOS or boost.\u003c\/p\u003e\n\u003ch3\u003eAre replacement rings available?\u003c\/h3\u003e\n\u003cp\u003eYes, replacement rings are available as a special order from KB Pistons.\u003c\/p\u003e\n\u003ch3\u003eDo these pistons have coated skirts?\u003c\/h3\u003e\n\u003cp\u003eYes, Twin Cam and Sportster applications feature coated skirts to reduce friction and wear.\u003c\/p\u003e\n\u003ch3\u003eWhat is the .020 overbore?\u003c\/h3\u003e\n\u003cp\u003eThe .020 indicates the piston is sized .020 inches larger than stock bore diameter for a bored-and-stroked engine build.\u003c\/p\u003e","brand":"Kb Pistons","offers":[{"title":"Default Title","offer_id":53035469045871,"sku":"824-01615","price":313.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_34dce71e-85c2-4fe6-8bda-d02863af9b92.png?v=1779561777","url":"https:\/\/vtwinbikers.com\/products\/kb-pistons-forged-alloy-piston-pistons-evo-80ci-10-5-1-020-824-01615","provider":"Vtwinbikers","version":"1.0","type":"link"}