{"product_id":"s-s-cycle-129-power-package-hpt496-for-107-m8-engines-chain-drive-oil-cooled-black-finish","title":"S\u0026S CYCLE 129\" Power Package HPT496 for 107\" M8 Engines - Chain Drive, Oil Cooled, Black Finish","description":"129\" Power Package - HPT496 - Chain Drive - Oil Cooled - Black w\/o Highlights - 107\" M8\n\u003cp\u003eEnhance your Harley-Davidson 107\" M8 engine with the S\u0026amp;S CYCLE 129\" Power Package HPT496, designed for optimal performance and reliability. This bolt-on kit increases engine displacement from 107 inches to 129 inches without requiring case machining, providing a significant boost in power and torque. The package includes a big bore 4.320\" cylinder with forged pistons featuring an 11.0:1 compression ratio, ensuring durability and high-performance operation. An S\u0026amp;S oil pump and cam plate maintain efficient lubrication, while removable passage plugs facilitate easy servicing. Independent scavenge sections for the flywheel cavity and cam chest improve oil flow and help prevent debris buildup, thanks to debris screens in both scavenge pickups and a magnet in the cam chest that captures metal particles before they reach the oil pump. The design enhances oil flow capacity on both feed and scavenge sides, promoting cooler operation and extended engine life.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBig bore increase from 107\" to 129\" with no case machining required\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eBig bore 4.320\" cylinder with forged pistons and 11.0:1 compression ratio\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIncludes S\u0026amp;S oil pump and cam plate for reliable lubrication\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eRemovable passage plugs for easy servicing and maintenance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIndependent scavenge sections for flywheel cavity and cam chest improve oil flow\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDebris screens in both scavenge pickups and a magnet in cam chest help prevent debris entry\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEnhanced oil flow capacity on feed and scavenge sides for cooler operation\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eAdjustable pressure relief valve allows fine-tuning of oil pressure with engine installed\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eQuickee pushrods with pushrod tubes simplify installation and maintenance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePremium S\u0026amp;S tappets and hard anodized, black-coated billet aluminum tappet cuffs\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompatible with S\u0026amp;S valve springs up to 0.605\" lift, suitable for high-performance cams\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eHPT496 cam designed specifically for big bore applications\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMLS (multi-layered steel) head gasket ensures proper sealing\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIncludes 129 cam cover badge for an authentic look\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMade in the USA, designed to retain stock engine height and work with stock crankcases\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompatible with stock and S\u0026amp;S roller rocker arms, retaining original engine serial numbers\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eWorks with both first and second generation (oval port) stock valve springs\u003c\/li\u003e\u003c\/ul\u003e","brand":"S\u0026S CYCLE","offers":[{"title":"Default Title","offer_id":43031761387614,"sku":"09040180","price":3212.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/2545\/7758\/files\/5687579.png?v=1784491174","url":"https:\/\/vtwinvisionary.com\/products\/s-s-cycle-129-power-package-hpt496-for-107-m8-engines-chain-drive-oil-cooled-black-finish","provider":"V-TwinVisionary","version":"1.0","type":"link"}