{"product_id":"mcs512413","title":"S\u0026S 96\" 3-5\/8\" Big Bore Cylinder \u0026 Piston Kit – 1984–1999 Evo Big Twin","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eNatural aluminum finish. Dependable Performance. That's what made the S\u0026amp;S 96\" kit the most popular high performance option for decades. Fits 84-99 Evolution Big Twin models with 4-5\/8\" stroker flywheels. Comes complete with +.015\" longer 3-5\/8\" Big Bore cylinders (special manifold not required); forged pistons; piston rings; rings wrist pins and a head \u0026amp; base gasket set. Compression ratio 9.75:1. Engine life can be expected to be good. Note: Crankcase spigots must be bored for 3-5\/8\" cylinders. 4-5\/8\" Stroker flywheels (like MCS 512363) with appropriate sprocket \u0026amp; pinion shaft must be purchased separately when required. Keep in mind that 89-99 models are equipped with the one-piece flywheel sprocket\/pinion shaft construction. Note: 90-99 models will require a S\u0026amp;S pinion shaft conversion kit; like 904148.\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e84-99 Evo Big Twin (NU)\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\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; Cylinders\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit:\u003c\/strong\u003e KIT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct code:\u003c\/strong\u003e 512413\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003eMCS Part Number: 512413\u003cbr\u003eManufacturer Part Number: 91-7202\u003c\/p\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":44341766095168,"sku":"MCS512413","price":1222.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/512413k.jpg?v=1776035392","url":"https:\/\/hogparts.co.uk\/products\/mcs512413","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}