{"product_id":"s-s-98-1607cc-3-5-8-big-bore-cylinder-piston-kit","title":"S\u0026S, 98\" (1607cc) 3-5\/8\" big bore cylinder \u0026 piston kit","description":"Fits 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.\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 66-84 Shovel (NU). With 4-3\/4\" small diameter flywheels with 82-up crankpin and an S\u0026amp;S sproket shaft\u003c\/p\u003e","brand":"S\u0026S","offers":[{"title":"Default Title","offer_id":54307922903367,"sku":"512412","price":1945.5,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0987\/7812\/0519\/files\/512432k_be9755e8-4875-4a64-928a-588c91328754.jpg?v=1784486269","url":"https:\/\/www.chopperessentials.com\/products\/s-s-98-1607cc-3-5-8-big-bore-cylinder-piston-kit","provider":"Chopper Essentials Co.","version":"1.0","type":"link"}