{"product_id":"kb-performance-piston-set-std-for-harley-davidson-1","title":"KB Performance Piston Set Std For Harley Davidson","description":"883-1200 conversion forged piston set. 10.1 CR with 51cc head. \u003cbr data-mce-fragment=\"1\"\u003eWorks with unmodified 883 heads. \u003cbr data-mce-fragment=\"1\"\u003ePiston weight 337gr. \u003cbr data-mce-fragment=\"1\"\u003ePiston pin weight 97gr. \u003cbr data-mce-fragment=\"1\"\u003ePiston pin dia. .791\" \/ offset. \u003cbr data-mce-fragment=\"1\"\u003eHead type: Dish with +9.8cc. \u003cbr data-mce-fragment=\"1\"\u003eCompression height 1.280\". \u003cbr data-mce-fragment=\"1\"\u003eBore 3.498\". \u003cbr data-mce-fragment=\"1\"\u003eStroke 3.812\". \u003cbr data-mce-fragment=\"1\"\u003eRod length 6.926\". \u003cbr data-mce-fragment=\"1\"\u003eCyl. length 4.650\". \u003cbr data-mce-fragment=\"1\"\u003eAll KB forged pistons are made from 4032 alloy, a 11% silicon alloy that is formed in a forging press. \u003cbr data-mce-fragment=\"1\"\u003eForging aluminum gives a superior strength and structural integrity on a molecular level, after which it is fully machined. \u003cbr data-mce-fragment=\"1\"\u003eThe combination of this alloy and the forging process allows the piston to flex under detonation, or pre-ignition, giving the best resistance to cracking. \u003cbr data-mce-fragment=\"1\"\u003eAlthough 4032 has a low expansion rate, it is higher than the cast Hypereutectic. \u003cbr data-mce-fragment=\"1\"\u003eTherefore forged KB pistons will require about .001\" wider piston to wall clearance. \u003cbr data-mce-fragment=\"1\"\u003ePistons are sold as sets, complete with wrist pin retaining rings, wrist pins and piston rings. \u003cbr data-mce-fragment=\"1\"\u003ePlease note that all KB forged pistons come equipped with offset wrist pins \/ piston pins. \u003cbr data-mce-fragment=\"1\"\u003eThere is a front and rear section on the piston and it is necessary to install it in the correct way. \u003cbr data-mce-fragment=\"1\"\u003ePlease refer to the installation instructions, as provided with each piston set, prior to installation. \u003cbr data-mce-fragment=\"1\"\u003eNote: For 04-up XL models 1200cc cylinders must be used. \u003cbr data-mce-fragment=\"1\"\u003eThe stock 04-up 883 cylinder liners are too thin for boring to 1200 size.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eFits: \u0026gt; 86-21 883 XL. For 883 to 1200 conversion","brand":"KB Performance Piston","offers":[{"title":"Default Title","offer_id":40438649978965,"sku":"MC944780","price":395.22,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1606\/2595\/products\/944780k.jpg?v=1669725417","url":"https:\/\/california-motorcycles.com\/products\/kb-performance-piston-set-std-for-harley-davidson-1","provider":"California Motorcycles","version":"1.0","type":"link"}