{"product_id":"98-big-bore-forged-pistons-for-1999-06-hd®-big-twins-3-937-standard-bore","title":"98\" Big Bore Forged Pistons For 1999-'06 HD® Big Twins - 3.937\" Standard Bore","description":"\u003cspan data-mce-fragment=\"1\"\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\/span\u003e","brand":"Havoc Parts","offers":[{"title":"Default Title","offer_id":42140372566181,"sku":"","price":747.93,"currency_code":"CAD","in_stock":true}],"url":"https:\/\/shop.havoc-motorcycles.com\/products\/98-big-bore-forged-pistons-for-1999-06-hd%c2%ae-big-twins-3-937-standard-bore","provider":"Havoc Motorcycles","version":"1.0","type":"link"}