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S&S Cycle Precision Tappets

S&S Cycle precision tappets are high performance replacements for S&S Cycle's previous standard and premium lifters for M8, Twin Cams, and late Sportster applications. Each precision tappet is hand assembled to exacting tolerances and designed for quiet operation and rapid pump up. Features and benefits: * Reduced valve train noise from start-up to shut down * Close tolerances for low leak-down rates * Fast pump up and superior high-rpm performance

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$279.95

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S&S Cycle Milwaukee 8 Chain Drive Cam Chest Kits

Upgrade your entire cam chest with S&S Cycle Milwaukee 8 chain drive cam chest kits! The parts in each kit are matched to ensure superior quality, fit, finish, and performance, and will include the necessary gaskets, components, and hardware required for a complete installation. S&S Cycle chain drive kits are available for water-cooled and oil-cooled motorcycle models. Select the kit designed to fit your bike. Features of Milwaukee 8 chain drive cam chest kits: * Oil pump and cam plate are precision-machined from billet aluminum with a blue anodized finish * Passage plugs are removable for servicing * Independent scavenge sections for the flywheel cavity and cam chest * Debris screens in both scavenge pickups * Magnet in cam helps stop debris from entering oil pump * Increased oil flow capacity on both the feed and scavenge sides * Adjustable pressure relief valve is adjustable with the unit installed in the engine * S&S Quickee pushrods with chrome or gloss black pushrod tubes * S&S premium tappets—hand assembled to exacting tolerances; reduced valve train noise from start up to shut down * Billet aluminum tappet cuffs have a hard-anodized black coating and are stronger than stock to eliminate distortion and improves tappet stability in high-lift situations * Precision machined billet aluminum cam chain tensioner * 465 Torque cam kits are the ideal choice for Touring bike applications * 475 kits are bolt-in cams that can produce up to 100 horsepower * 540 kits are designed to add even more stump pulling torque to your big bore M8, for those that keep the revs below 6,000 rpm—requires the addition of valve springs (included in high lift kits) and works with cams up to .605 lift * 550 kits are for use with large displacement engines—requires the addition of valve springs (included in high lift kits) and works with cams up to .605 lift

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$1,721.95

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S&S Cycle Milwaukee 8 Chain Drive Camshaft Kits

Tap into the power of your Milwaukee 8 engine by installing an S&S Cycle camshaft. These kits will increase the torque and horsepower of your bike. They include all required gaskets, O-rings, bearings, and hardware. Order the model recommended for your Harley-Davidson® application.

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$299.95

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S&S Cycle Heavy-Duty Valve Spring Kits

S&S Cycle offers heavy-duty valve spring kits to upgrade your bike's performance—so you don't have just another "me too" motorcycle. Order the S&S Cycle heavy-duty valve spring kit designed for your bike's application. Features and specifications: * Available for M8 2017-2024 Harley-Davidson® models * Kit includes springs, top collars, keepers, valve seal/bottom collars * Works well with cams up to .605 in. lift * High performance conical single wire spring

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$395.95

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S&S Cycle Cam Chain Tensioners

S&S Cycle offers you superior valve train control for your motorcycle with their cam chain tensioners. They provide a thicker shoe, a larger piston, direct chain oiling, and tighter tolerances for improved stability and longer wear life over the stock cam chain tensioners. Order the S&S cam chain tensioners designed for your bike.

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$109.95

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S&S Cycle Oil Filters

S&S Cycle oil filters are constructed out of a sturdy steel canister, which houses the finest filtering media and internal components available. The filter media has traps to catch the smallest particles possible but not restrict flow. The filters are available in a black or chrome finish to accent your ride properly. With S&S Cycle oil filters you'll keep your oil clean and your engine protected.

4.5 out of 5 stars ( 2 )

$183.95

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$288.95

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S&S Cycle 129 in. Power Packages with Chain Drive Cam

S&S Cycle offers 129 in. power packages with chain drive cam for a variety of Harley-Davidson© street bikes from 2017 and up. These packages are the ideal combination of performance and savings designed to transform your engine from mild to wild. They combine S&S's biggest big bore cylinders with matched 550 cam/cam-plate/oil pump and everything else a high performance cam chest needs to make big, reliable horsepower. Transform your 107 in. into a 129 in. monster. Additional details: * Available with 129 in. Big Bore pistons/cylinders * 550 lift cam for the perfect combination of horsepower and torque * Works with stock crankcases * Powdercoat finish matched to factory * MLS (multi-layered steel) head gaskets * Includes tappets, tappet cuffs, and high lift springs * Includes 129 cam cover badge

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$3,359.95

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S&S Cycle Roller Rocker Arm Complete Rebuild Kits

S&S Cycle roller rocker arm complete rebuild kits offer several benefits for Harley-Davidson® motorcycles, including significantly reduced friction on the valve stem, improved valvetrain longevity, increased horsepower potential, especially at higher rpm's, and smoother engine operation. These kits also offer better compatibility with high-lift cams due to the reduced wear and side load on the valve stem from the roller design; essentially providing better overall performance and durability compared to stock rocker arms. Order the rebuild kit designed for your HD® model. Features and benefits: * Complete kit includes roller tips, roller pins, roller pin retaining clips, and rocker arm bushings to rebuild a set of four S&S forged roller rocker arms * Designed using Finite Element Analysis (FEA) and forged from 8620 steel for strength * The roller design minimizes friction on the valve stem, leading to less wear and tear on both the valve stem and rocker arm, extending the lifespan of the valvetrain components * The roller bearings in the rocker arms distribute the load more evenly, leading to better wear resistance compared to traditional sliding contact on stock rockers * Roller rockers are designed to handle the increased valve lift associated with performance cams without excessive wear or stress on the valvetrain * Rocker geometry is better suited to high-lift camshafts * Bushings are longer than stock, increasing the time between rebuilds * The smooth rolling action of the roller bearings can contribute to a quieter engine operation * Compatible with stock or S&S CNC-machined heads * Many high-quality roller rocker arm kits are designed to be serviceable and rebuildable, allowing long-term use with proper maintenance Notes: When installing roller rockers, it's important to choose a camshaft that is compatible with the increased valve lift capability. Also, precise installation is crucial to ensure optimal performance and avoid potential issues.

Not Yet Reviewed

$167.95

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S&S Cycle Milwaukee 8 Gear Drive Cam Chest Kits

S&S Cycle Milwaukee 8 gear drive cam chest kits include everything necessary to convert to gear drive for improved cam timing accuracy and eliminate the stock cam chain tensioner. All parts in each kit are matched to ensure superior quality, fit, finish and performance. Each kit includes necessary gaskets, components, and hardware required for a complete installation. S&S gear drive kits are available for water-cooled and oil-cooled motorcycle models. Select the kit designed for your bike. Features of Milwaukee 8 gear drive cam chest kits: * Oil pump and cam plate are precision-machined from billet aluminum with a blue anodized finish * Passage plugs are removable for servicing * Independent scavenge sections for the flywheel cavity and cam chest * Debris screens in both scavenge pickups * Magnet in cam helps stop debris from entering oil pump * Increased oil flow capacity on both the feed and scavenge sides * Adjustable pressure relief valve is adjustable with the unit installed in the engine * S&S Quickee Pushrods with chrome or gloss black pushrod tubes * S&S premium tappets—hand assembled to exacting tolerances; reduced valve train noise from start up to shut down * Billet aluminum tappet cuffs have a hard-anodized black coating and are stronger than stock to eliminate distortion and improve tappet stability in high-lift situations * Outer drive gears included * 465 Torque cam kits are the ideal choice for Touring bike applications * 475 kits are bolt-in cams that can produce up to 100 horsepower * 540 kits are designed to add even more stump pulling torque to your big bore M8, for those that keep the revs below 6,000 rpm—requires the addition of valve springs (included in high lift kits) and works with cams up to .605 lift * 550 kits are for use with large displacement engines—requires the addition of valve springs (included in high lift kits) and works with cams up to .605 lift

Not Yet Reviewed

$1,623.95

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$1,924.95

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S&S Cycle 131 in. Big Bore Kits

S&S Cycle 131 in. big bore kits are aimed at the Milwaukee Eight platform for 2017 and newer big twins—and open up a whole new level of performance for these engines. When paired with an S&S 4.625 in. stroker flywheel (sold separately), engine will be a true 131cubic inches. S&S builds their big bore kits and cranks to much tighter tolerances and with higher quality materials than the factory parts. If you're the proud owner of a Harley-Davidson® Milwaukee Eight big twin and have been waiting for just the thing to boost your M8's power—the wait is over! The S&S Cycle piston/cylinder kits will be a solid platform for massive power! Features and benefits: * Huge displacement increase means huge power increase * Bolt-on kit works with stock crankcases * 4 1/4 in. bore cylinders with a new 11:1 forged piston design * Original engine serial numbers are retained * Powdercoat finish match factory finish, giving the bike a "sleeper" advantage * Includes .045 in. multi-layered steel head gaskets * Retains stock engine height * Includes 131 in. Cam Cover Badge * Available with or without highlighted fins Note: This kit must be used with S&S Cycle stroker flywheels to achieve 131 in. displacement (P/N: 320-0605, 320-0620).

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$1,559.95

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S&S Cycle M8 Big Bore Cylinders

S&S Cycle M8 big bore cylinders are bolt-on sets for Milwaukee 8 models. They are available in a Wrinkle Black finish with or without highlighted fins. Select the set you would like.

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$682.95

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S&S Cycle MK-Series Performance Crankcases

S&S Cycle offers MK-Series Performance crankcases for a variety of Harley-Davidson Touring and Softail street bikes from 2017 and up. These assembly replacements enable you to build massive power easily and reliably, particularly with M8 engines, and stock cases can't provide the necessary quality base. MK-Series crankcases are designed to allow for larger bores, scrape more oil than stock, have a larger volume sump, and fit in a stock frame without modification. Order the model recommended for your application.

Not Yet Reviewed

$2,849.95

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S&S Cycle M8 Oil Pump and Cam Plate Kits

S&S Cycle offers M8 oil pump and cam plate money-saving kits for a variety of Harley-Davidson© street bikes from 2017 and up. They're available for oil-cooled or water-cooled Touring models. The units are precision-machined from billet aluminum with a blue anodized finish—and include independent scavenge sections for flywheel cavity and cam chest. Additional details: * Debris screens in both scavenge pickups * Magnet in cam chest to help prevent debris from entering pump * Increased flow capacity on both feed and scavenge side * Adjustable pressure relief valve can be adjusted with unit in engine * Passage plugs are removeable for servicing * Water-cooled model 310-0997B: 44 percent flow increase on supply side and 58 percent flow increase on scavenge * Oil-cooled model 310-0998B: 20 percent flow increase on supply side and 52 percent flow increase on scavenge

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$836.95