{"product_id":"kb-performance-88-to-95-twin-cam-piston-kit-std-for-harley-davidson","title":"KB Performance, 88\" To 95\" Twin Cam Piston Kit. Std For Harley Davidson","description":"88\" (3-3\/4\") to 95\" (3-7\/8\") big bore conversion forged piston set.\u003cbr data-mce-fragment=\"1\"\u003e 9.25:1 CR with 85cc head.\u003cbr data-mce-fragment=\"1\"\u003e Piston weight 350gr.\u003cbr data-mce-fragment=\"1\"\u003e Piston pin weight 89gr.\u003cbr data-mce-fragment=\"1\"\u003e Piston pin dia.\u003cbr data-mce-fragment=\"1\"\u003e .927\" \/ offset.\u003cbr data-mce-fragment=\"1\"\u003e Head type: Dome with -6.7cc.\u003cbr data-mce-fragment=\"1\"\u003e Compression height 1.263\".\u003cbr data-mce-fragment=\"1\"\u003e Bore 3.875\".\u003cbr data-mce-fragment=\"1\"\u003e Stroke 4,000\".\u003cbr data-mce-fragment=\"1\"\u003e Rod length 7.667\".\u003cbr data-mce-fragment=\"1\"\u003e Cyl. length 4.938\".\u003cbr data-mce-fragment=\"1\"\u003e All KB forged pistons are made from 4032 alloy, a 11% silicon alloy that is formed in a forging press.\u003cbr data-mce-fragment=\"1\"\u003e Forging aluminum gives a superior strength and structural integrity on a molecular level, after which it is fully machined.\u003cbr data-mce-fragment=\"1\"\u003e The 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\"\u003e Although 4032 has a low expansion rate, it is higher than the cast Hypereutectic.\u003cbr data-mce-fragment=\"1\"\u003e Therefore forged KB pistons will require about .001\" wider piston to wall clearance.\u003cbr data-mce-fragment=\"1\"\u003e Pistons are soldered as sets, complete with wrist pin retaining rings, wrist pins and piston rings.\u003cbr data-mce-fragment=\"1\"\u003e Note: 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\"\u003e Please refer to the installation instructions, as provided with each piston set, prior to installation.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e Fits: \u0026gt; 99-06 88\" Twin Cam (NU)","brand":"KB Performance Piston","offers":[{"title":"Default Title","offer_id":40436372045909,"sku":"MC944808","price":425.22,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1606\/2595\/products\/944808k.jpg?v=1669393675","url":"https:\/\/california-motorcycles.com\/en\/products\/kb-performance-88-to-95-twin-cam-piston-kit-std-for-harley-davidson","provider":"California Motorcycles","version":"1.0","type":"link"}