{"product_id":"s-s-forged-3-5-8-big-bore-piston-kit-std","title":"S\u0026S, forged 3-5\/8\" big bore piston kit. Std","description":"Fits all 3-5\/8\" big bore 36-84 B.T. models with 4-1\/4\" to 5\" stroke flywheels with the correct flywheel diameter of 8-1\/2. Note that 4-3\/4\" \u0026amp; 5\" strokes require 8-1\/4 small diameter flywheels; all in combination with the appropriate cylinder length like mentioned below. Advanced alloy and piston skirt profile is used for low noise and long engine life. Piston dome volume 30cc; piston deck height 1.260\".   88\" (4-1\/4\" stroke; 8-1\/2\" flywheel dia.; 8.5:1 CR; 5.330\" cyl. length).  93\" (4-1\/2\" stroke; 8-1\/2\" flywheel dia.; 8.5:1 CR; 5.405\" cyl. length).  93\" HC (4-1\/2\" stroke; 8-1\/2\" flywheel dia.; 9.1:1 CR; 5.363\" cyl. length).  96\" (4-5\/8\" stroke; 8-1\/2\" flywheel dia.; 9.1:1 CR; 5.440\" cyl.length).  98\" (4-3\/4\" stroke; 8-1\/4\" flywheel dia.; 8.9:1 CR; 5.530\" cyl. length).  103\" (5\" stroke; 8-1\/4\" flywheel dia.; 9.7:1; 5.630\" cylinder length).  Pistons include wrist pins; wrist pin clips and piston rings.   Note: For a higher compression ratio S\u0026amp;S advises shortening the cylinders. Shortening cyl. .060\" will produce approx. 1 point increase in CR.  Note: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components; prior to installation. It is of importance that a knowledgeable mechanic will install \u0026amp; make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 36-84 88\"; 93\"; 93\"HC; 96\"; 98\" and 103\" Big Twin with appropriate cylinders and flywheel stroke (NU)\u003c\/p\u003e","brand":"S\u0026S","offers":[{"title":"Default Title","offer_id":54307883909447,"sku":"531782","price":515.58,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0987\/7812\/0519\/files\/531782k_36ebcad6-a2e9-4e05-ba51-437562e119a8.jpg?v=1784483960","url":"https:\/\/www.chopperessentials.com\/products\/s-s-forged-3-5-8-big-bore-piston-kit-std","provider":"Chopper Essentials Co.","version":"1.0","type":"link"}