{"product_id":"s-s-cycle-2007-bt-3-937in-x-4-3-8in-piston-set","title":"S\u0026S Cycle 2007+ BT 3.937in x 4-3\/8in Piston Set","description":"\u003cp\u003e\u003cb\u003ePart #:\u003c\/b\u003e 920-0100\u003c\/p\u003e\u003cp\u003eThese big bore pistons work with the stock 4-3\/8\" stroke flywheels to convert any 2007-'16 HD (R) big twin engine from 96\" or 103\" to 107\" displacement with 10.4:1 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 (R) 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","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":51833291702584,"sku":"S0GE 920-0100","price":514.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/578502944.webp?v=1779004751","url":"https:\/\/store.motormia.co\/products\/s-s-cycle-2007-bt-3-937in-x-4-3-8in-piston-set","provider":"MOTORMIA","version":"1.0","type":"link"}