{"product_id":"s-s-m8-107-to-124-big-bore-piston-kit-std","title":"S\u0026S, M8 107\" to 124\" big bore piston kit. STD","description":"11.1:1 compression ratio. Piston kit includes forged pistons; rings; wristpins and clips. Crankcases do not require boring. Big bore 4.250\" cylinders are required; OEM cylinders can not be bored to 4.250\". 107\" to 124\" pistons come with 1.143\" deck height and are compatible with the OEM 107\" 4.375\" stroke.  Note: For 4.250\" big bore cylinders only see S\u0026amp;S 574121 (black wrinkle) or 547122 (black wrinkle with higlighted fins).  Note: Gaskets are sold separately as 591055 head gaskets; 591054 base gaskets or 591056 head \u0026amp; base gasket kit.  Note: S\u0026amp;S recommends an S\u0026amp;S 550 series cam; which are available in both chain or gear drive.  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 18-24 107\" Softail; 17-24 107\" FLT\/Touring (NU)\u003c\/p\u003e","brand":"S\u0026S","offers":[{"title":"Default Title","offer_id":54307817914695,"sku":"580354","price":814.18,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0987\/7812\/0519\/files\/580356k_e14d2284-3b13-4a5e-bce5-d35b2c31a01f.jpg?v=1784480517","url":"https:\/\/www.chopperessentials.com\/products\/s-s-m8-107-to-124-big-bore-piston-kit-std","provider":"Chopper Essentials Co.","version":"1.0","type":"link"}