{"product_id":"mcs531784","title":"S\u0026S Forged 3-5\/8\" Big Bore Piston Kit. +.020\" – 1936–1984 88\"; 93\"; 93\"hc; 96\"; 98\" and…","description":"\u003ch2\u003eS\u0026amp;S Forged 3-5\/8\" Big Bore Piston Kit. +.020\" – 1936–1984 88\"; 93\"; 93\"HC; 96\"; 98\" and…\u003c\/h2\u003e\n\u003cp\u003eFits 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.\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003e36-84 88\"; 93\"; 93\"HC; 96\"; 98\" and 103\" Big Twin with appropriate cylinders and flywheel stroke (NU)\u003c\/p\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e S\u0026amp;S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e MOTOR PARTS \u0026gt; PISTONS AND RINGS KITS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit:\u003c\/strong\u003e SET\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct code:\u003c\/strong\u003e 531784\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePart Numbers\u003c\/h2\u003e\n\u003cp\u003eMCS Part Number: 531784\u003cbr\u003eManufacturer Part Number: 106-5537\u003c\/p\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":44341763014976,"sku":"MCS531784","price":361.08,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/531782k.jpg?v=1776035435","url":"https:\/\/hogparts.co.uk\/products\/mcs531784","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}