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On top of being constructed from superior materials, S&S Cycle's Evolution cylinders have thicker castings, larger cooling fins, and better wear resistance than stock cylinders. The design, finish and workmanship of these replacements corresponds to the stock counterparts that they replace. The cylinders feature ductile cast-iron sleeves in aluminum castings and are available in natural or black powdercoat finish to match OEM components. Individual cylinders and cylinder sets without pistons are bored slightly under size and are not honed, so they may be finish-honed to fit your pistons. Select the cylinders designed to fit your specific Harley-Davidson® model.
Not Yet Reviewed
$815.95
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$877.95
S&S Cycle Top End Guardian kits include everything needed to strengthen the top-end of your M-Eight engine. They're available for a wide range of Harley-Davidson® bikes. Each kit includes S&S rocker arm stud kit and S&S rocker arm shafts. Additional product details: * Rocker arm shafts are more durable than the stock arms * Roller rocker arms relieve additional stress caused by high-lift camshafts running and high rpms * Rocker arm stud kit extends the life of your cylinder heads by preventing damage to the rocker arm towers * Head bolt kit is made of 8640 heat-treated steel with 200,000 psi tensile strength * Cold-rolled threads and formed washer make these head bolts durable and reusable Included Items: (8) 7/16 in.-14 head bolts (4) Rocker arm shafts (8) 5/16 in.-18 / 5/16 in.-24 studs (8) 5/16 in. 12-point nuts (1) Loctite #262 (4) Roller rocker arms Instructions
Not Yet Reviewed
$826.16
S&S Cycle Throttle Hog throttle bodies are available for a variety of Harley-Davidson® big twins using cabled operated throttles and are designed to deliver more airflow for improved performance. Choose from 58mm, for stock or mildly built engines, or the whopping 66mm Throttle Hog for big inch engines. Order the model for your HD® bike application. Features and benefits: * Available for 2002-2005 Harley-Davidson® big twins using cabled operated throttles * S&S Cycle EFI Hot Setup Kit installations and T-Series long block engines with cable controlled throttles * S&S Stealth air cleaner kits, with the proper bore sizes are available * Works well with all air cleaner kits designed for throttle-by-wire engines with stock breathe system * One-piece design for easy installation and stock appearance * Compatible with stock sensors, fuel rail, and throttle cables * Black powdercoat finish matches stock * Sealed, stainless steel throttle shaft with dual roller bearings for smooth operation and no air leaks * Kit includes hardened steel flanges and seals * No stock throttle body exchange required!
Not Yet Reviewed
$797.36
S&S Cycle TC3 oil pump and cam plate kits are designed to deliver increased oil pressure and return scavenge volumes over your factory oil pump while providing increased rigidity and a pressure relief valve. The TC3 oil pump features three stages for consistent oil pressure, plus reliable scavenging, and the TC3 cam plate includes removable passage plugs for easy service. S&S Cycle TC3 oil pump and cam plate kit features include: * Precision CNC-machined forged aluminum * Adjustable oil pressure regulator adjusts without removing the plate from engine * Screens and magnetic traps help protect the scavenge rotors from debris * Special design allows S&S pumps to tolerate more pinion shaft runout without damage
Not Yet Reviewed
$753.26
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
Not Yet Reviewed
$836.95
Step up the performance of your Twin Cam with affordable S&S Cycle Early Twin cam gear drive camshaft kits. Some kits allow you to use stock springs, and the complete kits include a gear drive camshaft set and inner gears, an outer cam drive gear kit, and a camshaft installation kit. Performance doesn't have to leave you with empty pockets. S&S Cycle Early Twin Cam gear drive camshaft kits can save you time and money, while providing the added power that you want.
Not Yet Reviewed
$854.06
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$948.95
S&S Cycle offers Power Tune XTO race-only mufflers for a variety of applications, including many Polaris UTVs from 2015 and up. Welcome to the new world order of high performance exhaust for the SxS space! A high-flow stainless muffler body is combined with dual exits, each containing a removable spark arrestor as well as tunable inserts. Both sound and power can be adjusted by changing the inserts. Wide-open on the trails? Put the 2.25 in. inserts in and let it breathe. Rock crawling in Low? Replace the inserts with 1.375 in. for maximum torque. Additional tuning inserts are also available. Additional product details: * Improved power and torque * Dual outlet and stylized tips * Removable spark arrestors * 304 stainless steel construction * Meets J335 Forestry Standards * Use with or without factory rear cover * Clears most aftermarket bumpers * Does not require ECU tuning
Not Yet Reviewed
$999.95
S&S Cycle Early Twin Cam Easy Start gear drive camshaft kits offer more performance for less money, and more time to enjoy riding. The Easy Start kits allow your stock starter to start any engine and most can be used with stock valve springs. Plus, they are designed to greatly improve valve timing accuracy by eliminating timing chain lash. Twin Cam kits include cams with inner gears and installation kits. Installation doesn't take long and S&S offers many choices to meet your engine size and compression ratio. Here's an easier way to increase performance without emptying your wallet--S&S Cycle Early Twin Cam Easy Start gear drive camshaft kits.
Not Yet Reviewed
$963.86
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$1,070.95
S&S Cycle Hot Set-Up Twin Cam cylinders are handsomely designed to house your pistons. They are crafted from aluminum, available in a silver, stone gray, or machined wrinkle black finish, and have a stock bolt pattern. Select the Hot Set-Up cylinders designed for your Big Twin engine. Please note: Individual cylinders and cylinder sets without pistons are bored slightly under normal size and are not honed.
Not Yet Reviewed
$808.16
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$953.06
Boost your engine's performance with S&S Cycle's Twin Cam cylinders. The design, finish and workmanship of these cylinder replacements feature many improvements over stock units, including sturdier walls that are far less prone to warpage. Straighter, sturdier walls equals a better seal, and fit for pistons, and piston rings. An improved machining process also ensures a better surface for both the head and base gaskets. These cylinders feature ductile cast-iron sleeves in aluminum castings and are offered in black wrinkle finish. Select the cylinders designed to fit your specific HD® model.
Not Yet Reviewed
$897.95
Step up the performance of your Twin Cam with affordable S&S Cycle gear drive camshaft kits. Some kits allow you to use stock springs, and the complete kits include a gear drive camshaft set and inner gears, an outer cam drive gear kit, and a camshaft installation kit. Performance doesn't have to leave you with empty pockets. S&S Cycle Late Twin Cam gear drive camshaft kits can save you time and money, while providing the added power that you want.
Not Yet Reviewed
$822.95
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$948.95
S&S Cycle 865cc Big Bore kits are ideal for Royal Enfield 650 Twins. Designed for closed course racing competition, the kits include pistons, rings, pins, and sleeves. The high compression pistons feature a 7cc raised dome to achieve a compression ratio of 11:1 (from 9.5:1). Higher compression is a key factor in increasing performance.
Not Yet Reviewed
$849.95
S&S Cycle Late Twin Cam Easy Start gear drive camshaft kits offer more performance for less money and more time to enjoy riding. S&S Easy Start camshaft kits allow stock starter to start any engine and most can be used with stock valve springs. Plus, they are designed to greatly improve valve timing accuracy by eliminating timing chain lash. Twin Cam kits include cams with inner gears and installation kit. Installation doesn't take long and S&S offers many choices to meet your engine size and compression ratio. Here's an easier way to increase performance without emptying your wallet--S&S Cycle Late Twin Cam Easy Start gear drive camshaft kits.
Not Yet Reviewed
$917.95
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$963.95
S&S Cycle Milwaukee 8 gear drive camshaft and Dynojet PV-3 kits are the first of their kind, offering a 475 cam, tuner in gear drive, and true 100+ hp at the wheel in one package. The kits are designed to work specifically with S&S's Stealth air cleaner kits and Mk45 mufflers with a stock header or their Eldorado exhaust system. Features and benefits: * Bolt-in performance * No need for expensive dyno tuning * Display vehicle data channels in real-time * Weather-resistant for use in all conditions * High-contrast display, viewable in direct sunlight Please note: * PV-3 module is preloaded with calibrations developed by S&S. These calibrations are secure and do not allow for any modifications. * Calibrations do not work on any Harley-Davidson® Softail models. * Calibrations do not work on 2020+ Harley-Davidson® Touring Models.
Not Yet Reviewed
$762.26
S&S Cycle Super G complete carburetor kits feature a variable-position enrichment starting system with four fuel delivery ports and an O-ring sealed idle mixture screw. They're designed to increase airflow for more power. The carbs also have an adjustable accelerator pump for quick throttle response and easy starting, and they utilize your factory dual cable system to ensure safe operation. S&S Cycle Super G complete carburetor kits are direct replacements, providing high-quality fit, finish, and performance. Kits are available for a variety of Harley-Davidson® bikes from 1982 and up.
Not Yet Reviewed
$751.46
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$787.46
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.
Not Yet Reviewed
$854.06
The S&S Cycle 1250cc conversion cylinder kits are suitable for a range of Harley-Davidson® models, including the Sportster, which can benefit significantly from the added power. These cylinder conversion kits provide a significant increase in engine power and torque compared to the stock engine, making the bike significantly faster with a more noticeable acceleration, especially on smaller models like the Sportster, while often being a relatively cost-effective upgrade that can be done without major engine modifications or requiring a complete engine rebuild. This is particularly beneficial for riders seeking more power without drastically changing their bike's character. Each kit is tailored with the necessary components for your specific bike model. Many 1250cc conversion kits are designed to be installed without requiring major engine modifications, making them a good option for DIY mechanics. In most cases, you can use your stock cylinder heads, cams, and other engine components with a 1250cc conversion kit. Select the kit designed specifically for your HD® model and engine to ensure proper fitment.
Not Yet Reviewed
$978.95
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$1,045.95
The primary purpose of S&S Cycle's 750cc big bore kits is to enhance the performance of smaller engine models, particularly for the Street 500 or Street 750, giving them more power and acceleration. These stock bore cylinder kits are designed to increase the engine displacement by enlarging the cylinder bore, resulting in more power and torque compared to the stock engine, typically by converting a smaller displacement engine like a 500cc or 650cc into a 750cc unit. Many big bore kits are designed to be "bolt-on" upgrades, meaning they can be installed without requiring extensive engine modifications or machining, making them relatively easy to add to a motorcycle. Before ordering, make sure this kit is compatible with your specific street bike model.
Not Yet Reviewed
$869.95
S&S Cycle heavy-duty connecting rod sets are perfect for your stock rebuild or high performance street engine. More than tough, these rods are made from heat-treated 4140 chromoly steel for strength, hardness, and fatigue resistance. They feature replaceable lower bearing races, a better oiling crankpin, and additional rod-to-rod clearance to create perfect conditions for a big bore kit or longer stroke flywheels. These S&S Cycle heavy-duty connecting rod sets supply beefy strength to deliver smooth performance in your application.
Not Yet Reviewed
$899.95
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