{"product_id":"s-s-cycle-129-power-package-big-bore-kit-for-vvt-m8","title":"S\u0026S Cycle 129\" Power Package Big Bore Kit for VVT M8","description":"\u003cp\u003eThe S\u0026amp;S Cycle 129\" Power Package Big Bore Kit is engineered to dramatically transform your 107\" M8 VVT engine, boosting its displacement to a formidable 129\". This complete bolt-on performance kit delivers a significant power increase without the need for complex and costly case machining, making it an ideal upgrade for motorcycle enthusiasts seeking serious performance gains.\u003c\/p\u003e\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eUnleash the full potential of your Harley-Davidson M8 VVT engine with the S\u0026amp;S Cycle 129\" Power Package. This comprehensive big bore kit is designed to upgrade your existing 107\" M8 to a potent 129\" displacement, providing a substantial increase in horsepower and torque. The kit features high-quality 4.32\" bore cylinders paired with durable 11.0:1 compression forged pistons, ensuring robust performance and reliability. A key benefit is the bolt-on installation, which eliminates the need for expensive and time-consuming case machining.\u003c\/p\u003e\u003cp\u003eBeyond just increased displacement, this S\u0026amp;S Cycle 129\" Big Bore Kit incorporates advanced engineering throughout. It includes an S\u0026amp;S oil pump and cam plate, finished with a distinctive blue anodized coating, featuring independent scavenge sections for both the flywheel cavity and cam chest to optimize oil control. Debris screens in both scavenge pickups and a magnet in the cam chest further protect your engine by preventing contaminants from entering the oil pump. The system boasts increased oil flow capacity on both the feed and scavenge sides, complemented by an adjustable pressure relief valve that can be serviced while installed. Performance is further enhanced by Quickee pushrods, S\u0026amp;S premium tappets, and hard-anodized, black coated billet aluminum tappet cuffs. The S\u0026amp;S 550 cams are specifically designed for big bore applications, working in conjunction with high-performance conical single wire S\u0026amp;S valve springs capable of handling up to 0.605\" lift. Proudly made in the USA, this kit is built for superior quality and lasting durability.\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Highlights\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBolt-On 129\" Displacement Upgrade:\u003c\/strong\u003e Effortlessly transform your 107\" M8 VVT engine to a powerful 129\" without the need for complex and costly case machining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Performance Cylinder \u0026amp; Piston Design:\u003c\/strong\u003e Features precision-engineered 4.32\" bore cylinders and robust 11.0:1 compression forged pistons for maximum power and reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Oil System:\u003c\/strong\u003e Includes an S\u0026amp;S oil pump\/cam plate with a striking blue anodized finish, independent scavenge sections, debris screens, and a cam chest magnet to ensure superior lubrication and engine protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Valvetrain Components:\u003c\/strong\u003e Equipped with S\u0026amp;S 550 cams tailored for big bore applications, Quickee pushrods, premium tappets, and durable hard-anodized black coated billet aluminum tappet cuffs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Valve Springs:\u003c\/strong\u003e Utilizes high-performance conical single wire S\u0026amp;S valve springs designed to accommodate cams with up to 0.605\" lift, ensuring optimal valve control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Pressure Relief Valve:\u003c\/strong\u003e Allows for convenient pressure adjustments even with the unit installed in the engine, providing fine-tuned control over your oil system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProudly Made in the USA:\u003c\/strong\u003e Guarantees exceptional quality, craftsmanship, and durability for your high-performance motorcycle.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eKit Type: Big-bore bolt-on kit\u003c\/li\u003e\n\u003cli\u003eTarget Displacement: Increases 107\" M8 to 129\"\u003c\/li\u003e\n\u003cli\u003eCylinder Bore: 4.32\"\u003c\/li\u003e\n\u003cli\u003eCompression Ratio: 11.0:1\u003c\/li\u003e\n\u003cli\u003ePiston Type: Forged\u003c\/li\u003e\n\u003cli\u003eOil Pump\/Cam Plate Finish: Blue anodized\u003c\/li\u003e\n\u003cli\u003eTappet Cuff Material\/Finish: Billet aluminum, hard-anodized black coated\u003c\/li\u003e\n\u003cli\u003eCam Profile: S\u0026amp;S 550\u003c\/li\u003e\n\u003cli\u003eValve Spring Lift Capacity: Up to 0.605\"\u003c\/li\u003e\n\u003cli\u003eValve Spring Design: High-performance conical single wire\u003c\/li\u003e\n\u003cli\u003eManufacturing Origin: Made in the USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEAN:\u003c\/strong\u003e 09040205\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eImportant to Know\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWill fit VVT models.\u003c\/li\u003e\n\u003cli\u003eNot for any Trike models.\u003c\/li\u003e\n\u003cli\u003eIntake\/rocker cover gaskets not included.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":63699684655434,"sku":"09040205","price":46279.0,"currency_code":"DKK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0016\/9546\/files\/979dc0f6847959d3d2d74a058e24e5f1.webp?v=1790463154","url":"https:\/\/partsdenmark.dk\/products\/s-s-cycle-129-power-package-big-bore-kit-for-vvt-m8","provider":"Parts Denmark","version":"1.0","type":"link"}