{"product_id":"s-s®-forged-stock-bore-stroker-pistons-for-1936-84-hd®-big-twins-3-7-16-030","title":"S\u0026S® Forged Stock Bore Stroker Pistons For 1936-'84 HD® Big Twins - 3-7\/16\" +.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 3-7\/16\" +.030\" bore, standard compression stroker pistons are part of an S\u0026amp;S stock bore stroker kit for 1936-'84 HD\u003csup data-mce-fragment=\"1\"\u003e®\u003c\/sup\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003ebig twins, and are designed to be used in conjunction with S\u0026amp;S\u003csup data-mce-fragment=\"1\"\u003e®\u003c\/sup\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003estroker flywheels. Flywheels of the following strokes may be used for the following displacements: 4-1\/2\" stroke - 84\" @ 8.4:1 compression 4-5\/8\" stroke - 86\" @ 9.4:1 compression 4-3\/4\" stroke - 88\" @10.8:1 compression These pistons are normally used in stock HD\u003csup data-mce-fragment=\"1\"\u003e®\u003c\/sup\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003ecylinders, and must be purchased separately, based on the required piston oversize. The modern alloys used in these pistons, coupled with the advanced skirt profiles, allow them to be fit tighter resulting in low engine noise and long engine life. In the past, this could only be achieved with weaker cast pistons. Cylinders are available from S\u0026amp;S\u003csup data-mce-fragment=\"1\"\u003e®\u003c\/sup\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003efor 1941-'47 and 1966-'84 models. S\u0026amp;S\u003csup data-mce-fragment=\"1\"\u003e®\u003c\/sup\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eoffers machine shop services through the S\u0026amp;S\u003csup data-mce-fragment=\"1\"\u003e®\u003c\/sup\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eService and Speed Center. New pistons can be fit to your existing cylinders for a reasonable charge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-widget-id=\"39b46801-3547-43ef-915c-49455a02ad00\" class=\"productSpecifications\" data-mce-fragment=\"1\"\u003e\u003c\/div\u003e","brand":"Havoc Parts","offers":[{"title":"Default Title","offer_id":42140382986405,"sku":"","price":693.53,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0349\/1361\/6008\/products\/27_587f47bf-7371-4dd9-8def-b598f695b6da.png?v=1671277122","url":"https:\/\/shop.havoc-motorcycles.com\/products\/s-s%c2%ae-forged-stock-bore-stroker-pistons-for-1936-84-hd%c2%ae-big-twins-3-7-16-030","provider":"Havoc Motorcycles","version":"1.0","type":"link"}