{"product_id":"s-s-cycle-920-0101-big-bore-forged-piston-kit-3-937-bore-98-twin-cam-standard","title":"S\u0026S Cycle #920-0101 - Big Bore Forged Piston Kit - 3.937\" Bore - 98\" Twin Cam - Standard","description":"\u003cp\u003eThese big bore pistons work with the stock 4\" stroke flywheels to convert any 1999-'06 HD® big twin engine from 88\" to 98\" displacement with 10.3:1 compression with stock heads. Stock cylinders may be bored to accomodate larger pistons, but we recommend S\u0026amp;S 3.927\" bore cylinders which feature high strength alloyed cast iron liners. Pistons are compatible with stock rods with tapered wristpin ends. S\u0026amp;S® 3.927\" bore pistons are machined to such close tolerances that it is not necessary to measure the piston. Just bore cylinders to nominal diameter +\/- 0.0005\" for correct clearance. Additionally, the low friction coating on the piston skirt makes taking measurements very difficult. 3.937\" standard bore.\u003c\/p\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\u003ctable border=\"1\" cellpadding=\"4\" style=\"border-collapse:collapse;width:100%;font-size:0.9em\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear(s)\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel Code\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e1999-2006\u003c\/td\u003e\n\u003ctd\u003eHarley-Davidson\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eBig Twin\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":49894364446960,"sku":"0910-4524","price":499.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0702\/6098\/2000\/files\/jpeg__37268.1777939367.386.513.jpg?v=1782602803","url":"https:\/\/www.brlspeedshop.com\/products\/s-s-cycle-920-0101-big-bore-forged-piston-kit-3-937-bore-98-twin-cam-standard","provider":"BRL Speed Shop","version":"1.0","type":"link"}