{"product_id":"s-s-cycle-129-m8-power-package","title":"S\u0026s Cycle 129\" M8 Power Package","description":"\u003cp\u003eUnleash the full potential of your Harley-Davidson Milwaukee-Eight engine with the S\u0026amp;S Cycle 129\" Power Package. This comprehensive kit transforms your stock 107\" oil-cooled M8 into a potent 129\" powerhouse, delivering significant gains in horsepower and torque.\u003c\/p\u003e\n\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eThe S\u0026amp;S Cycle 129\" Power Package is engineered for bolt-in performance, requiring no case machining for installation. The kit includes big bore cylinders, a matched cam, cam plate, and oil pump, ensuring optimal performance and reliability. Independent scavenge sections for the flywheel cavity and cam chest improve oil scavenging efficiency, while a magnet in the cam chest helps prevent debris from entering the oil pump, enhancing engine longevity. High-performance conical single-wire S\u0026amp;S valve springs provide superior valve control at high RPMs. This kit features removable passage plugs for easy servicing and debris screens in both scavenge pickups for added protection. The MLS (multi-layered steel) head gaskets ensure a reliable seal under high pressure. Paired with a performance-matched 550 cam, this kit delivers impressive power gains. Plus, you retain your original engine serial numbers, maintaining the integrity of your motorcycle. Experience the ultimate M8 upgrade with this high-quality, American-made power package.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures \u0026amp; highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eTransforms your 107\" oil-cooled M8 engine into a high-performance 129\" powerhouse.\u003c\/li\u003e\n  \u003cli\u003eBig bore cylinders, matched cam, cam plate, and oil pump provide optimized performance.\u003c\/li\u003e\n  \u003cli\u003eIndependent scavenge sections and a cam chest magnet enhance oil scavenging and protect the oil pump.\u003c\/li\u003e\n  \u003cli\u003eHigh-performance conical single-wire S\u0026amp;S valve springs ensure optimal valve control.\u003c\/li\u003e\n  \u003cli\u003eMLS (multi-layered steel) head gaskets provide a reliable seal under high pressure.\u003c\/li\u003e\n  \u003cli\u003eWorks with the stock crankcase for easy installation.\u003c\/li\u003e\n  \u003cli\u003eProudly made in the USA.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eBrand: S\u0026amp;S Cycle\u003c\/li\u003e\n  \u003cli\u003eProduct Name: Performance Kit\u003c\/li\u003e\n  \u003cli\u003eType: Engine\u003c\/li\u003e\n  \u003cli\u003eCooling System: Oil Cooled\u003c\/li\u003e\n  \u003cli\u003eDisplacement: 129\"\u003c\/li\u003e\n  \u003cli\u003eBore Size: 4.320\"\u003c\/li\u003e\n  \u003cli\u003eStroke Length: 4.375\"\u003c\/li\u003e\n  \u003cli\u003eCam Drive Type: Gear\u003c\/li\u003e\n  \u003cli\u003eColor\/Finish: Black, Highlighted Fins\u003c\/li\u003e\n  \u003cli\u003eFeatures: Chrome Pushrod Tubes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eImportant to know\u003c\/h2\u003e\n\u003cp\u003eThis kit works with the stock crankcase. Professional installation is highly recommended to ensure optimal performance and reliability.\u003c\/p\u003e","brand":"S\u0026s Cycle","offers":[{"title":"Default Title","offer_id":53638655541578,"sku":"09040108","price":16843.0,"currency_code":"PLN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0016\/9546\/files\/2d2e23c76614c31ff8aaff6e333c1985.webp?v=1766342600","url":"https:\/\/partsdenmark.pl\/products\/s-s-cycle-129-m8-power-package","provider":"Parts Denmark","version":"1.0","type":"link"}