{"product_id":"mcs512412","title":"S\u0026S 98\" (1607cc) 3-5\/8\" Big Bore Cylinder \u0026 Piston Kit – 1966–1984 Shovel. with 4-3\/4\" Small…","description":"\u003ch2\u003eS\u0026amp;S 98\" (1607cc) 3-5\/8\" Big Bore Cylinder \u0026amp; Piston Kit – 1966–1984 Shovel. With 4-3\/4\" Small…\u003c\/h2\u003e\n\u003cp\u003eFits all 66-84 Shovelhead models with 4-3\/4\" stroker flywheels. Comes complete with +.200\" (5.530\") 3-5\/8\" big bore gloss black cylinders; forged pistons; rings; wrist pins; head\/base gaskets and cylinder head bolts and cylinder base nuts. This large capacity engine will give serious increase in power and torque. Compression ratio 8-1\/4:1. Engine life can be expected to be fair; strongly depending on riding habits. Note: Crankcase spigots must be bored for 3-5\/8\" cylinders. Note: 4-3\/4\" stroker flywheels in the 8-1\/4\" special small diameter version must be used (MCS 512370) in combination with a 82-up type crankpin and a S\u0026amp;S sprocket shaft. Flywheels must be purchased separately and come un-balanced.\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003e66-84 Shovel (NU). With 4-3\/4\" small diameter flywheels with 82-up crankpin and an S\u0026amp;S sproket shaft\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; 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 512412\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePart Numbers\u003c\/h2\u003e\n\u003cp\u003eMCS Part Number: 512412\u003cbr\u003eManufacturer Part Number: 91-9201\u003c\/p\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":44341766127936,"sku":"MCS512412","price":1675.97,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/512432k.jpg?v=1776035397","url":"https:\/\/hogparts.co.uk\/products\/mcs512412","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}