{"product_id":"31-2-bore-forged-stroker-piston-kits-for-stock-heads-or-s-s-performance-replacement-heads-030","title":"31\/2\" Bore Forged Stroker Piston Kits For Stock Heads Or S\u0026S Performance Replacement Heads - +.030\"","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 forged 3-1\/2\" bore stroker pistons for 1984-'99 HD\u003csup data-mce-fragment=\"1\"\u003e®\u003c\/sup\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eEvolution\u003csup data-mce-fragment=\"1\"\u003e®\u003c\/sup\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003ebig twin engines are required for the S\u0026amp;S 89\" stock bore stroker kits, which include S\u0026amp;S 4-5\/8\" stroke flywheels. Pistons are designed to be used with stock cylinder heads or with S\u0026amp;S Performance Replacement heads. Low silicon forged material and advanced S\u0026amp;S piston skirt design result in high strengh and low noise. 3-1\/2\" +.020\" bore.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-widget-id=\"9ab308d8-e4b7-4f24-981e-dbb4512ae324\" class=\"productSpecifications\" data-mce-fragment=\"1\"\u003e\u003c\/div\u003e","brand":"Havoc Parts","offers":[{"title":"Default Title","offer_id":42140376137893,"sku":"","price":693.53,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0349\/1361\/6008\/products\/20_3f79d552-7fe4-4c77-ad13-363ab2357f2c.png?v=1671276728","url":"https:\/\/shop.havoc-motorcycles.com\/products\/31-2-bore-forged-stroker-piston-kits-for-stock-heads-or-s-s-performance-replacement-heads-030","provider":"Havoc Motorcycles","version":"1.0","type":"link"}