{"product_id":"107-big-bore-forged-pistons-for-2007-16-hd®-big-twins-3-937-standard-bore","title":"107\" Big Bore Forged Pistons For 2007-'16 HD® Big Twins - 3.937\" Standard Bore","description":"\u003cdiv id=\"product-accordion\" class=\"accordionModule panel-group\" data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"product-tab-Description\" class=\"tab-content collapse  active in\" role=\"tabpanel\" aria-labelledby=\"product-tab-heading-Description\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"tab-pane active\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThese big bore pistons work with the stock 4-3\/8\" stroke flywheels to convert any 2007-'16 HD\u003csup data-mce-fragment=\"1\"\u003e®\u003c\/sup\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003ebig 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\u003csup data-mce-fragment=\"1\"\u003e®\u003c\/sup\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e3.927\" 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\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-widget-id=\"652f9cdd-a782-42f9-bde9-1ddf5602cd44\" class=\"productSpecifications\" data-mce-fragment=\"1\"\u003e\u003c\/div\u003e","brand":"Havoc Parts","offers":[{"title":"Default Title","offer_id":42140368568485,"sku":"","price":747.93,"currency_code":"CAD","in_stock":true}],"url":"https:\/\/shop.havoc-motorcycles.com\/products\/107-big-bore-forged-pistons-for-2007-16-hd%c2%ae-big-twins-3-937-standard-bore","provider":"Havoc Motorcycles","version":"1.0","type":"link"}