S&S CYCLE
Shop S&S Cycle Harley-Davidson Performance Parts: Big Bore Kits, Engines & Exhaust at JJ Motorsports
Discover legendary S&S Cycle performance parts, the premier USA-based manufacturer of high-horsepower motorcycle engines and components since 1958. Founded by George J. Smith and Stanley Stankos, S&S is the go-to brand for serious Harley-Davidson builders and racers seeking maximum power, reliability, and American-made quality. From complete long-block engines and big bore top-end kits to flywheels, cams, carburetors, and race-proven exhaust systems, S&S delivers groundbreaking innovations like the T143 engine, MK45 mufflers, and Shovelhead-style heads that transform stock Harleys into fire-breathing machines.
At JJ Motorsports, we stock the full line of S&S Cycle parts at competitive prices with fast shipping. Build more cubic inches, add serious torque, or upgrade your exhaust note with the brand trusted by champions for over 65 years. Explore related categories such as motorcycle engines and components for complete builds or motorcycle exhaust for power gains.
Top S&S Cycle Products
- S&S Cycle Top End Kit - Big Twin 90-0097 – Complete bolt-on top-end kit with Shovelhead-style heads, stock bore cylinders, 8:1 forged pistons, gaskets, and hardware — no machining required for instant big-inch power.
- S&S Cycle Flywheel Assembly 320-0598 – Forged steel flywheel assembly with keyed 6" tapered sprocket shaft, balanced to stock HD 80" pistons, includes crankpin and connecting rods — built for high-performance and custom applications.
- S&S Cycle 4-1/2" Chrome MK45 Cutlass Performance Mufflers 550-1011 – Bold 4-1/2" chrome mufflers with stainless steel baffles, RaceTEX packing for deep bass rumble, removable dB reducer, and 50-state legal — massive looks with serious performance gains.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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S&S CYCLE Super E and G Carburetor Throttle Plate 11-2355
S&S CYCLE
$21.95Sold each10031707- SKU:
- 10031707
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- SUPER E
- UNITS:
- EACH
- MODEL:
- SUPER G
- PRODUCT NAME:
- THROTTLE PLATE
- RIDING STYLE:
- STREET
$21.95 -
S&S CYCLE Adjustable Pushrods - Twin Cam 93-5096
S&S CYCLE
$152.95.4375" diameter chromoly steel for maximum strength, Rocker boxes must be removed for installation or removal, Made in the U.S.A.DS199241- SKU:
- DS199241
- Availability:
- Ships Same Business Day
- Weight:
- 0.94 LBS
- PRODUCT NAME:
- PUSHROD SET
- UNITS:
- 4 PACK
- RIDING STYLE:
- STREET
- STYLE:
- ADJUSTABLE
- MATERIAL:
- CHROMOLY STEEL
$152.95 -
S&S CYCLE Sidewinder Kit - 96" 91-9134
S&S CYCLE
$4,499.95Sidewinder Big Bore Stroker Kit, Contains nearly everything needed to take a stock 74" or 80" H-D? Shovelhead engine up to 93" or 96" displacement, Includes 3.625" bore high tensile, cast iron...09031299- SKU:
- 09031299
- Availability:
- Ships Same Business Day
- Weight:
- 75.90 LBS
- BORE SIZE IMPERIAL:
- 3.625'
- DISPLACEMENT:
- 96'
- UNITS:
- KIT
- COLOR/FINISH:
- BLACK
- STROKE LENGTH IMPERIAL:
- 4-5/8'
- STYLE:
- BIG BORE
- COMPRESSION RATIO IMPERIAL:
- 9.1:1
- TYPE:
- ENGINE
- MODEL:
- SIDEWINDER
- PRODUCT NAME:
- PERFORMANCE KIT
- RIDING STYLE:
- STREET
$4,499.95 -
S&S CYCLE Cylinder Head Kit - Big Twin 90-1497
S&S CYCLE
$1,895.95Heads come completely assembled with valve seats, valves, guides, seals, .590" lift valve springs, collars and valve keepers, Complete kits also include rocker cover gaskets, head gaskets and...09300017- SKU:
- 09300017
- Availability:
- Ships Same Business Day
- Weight:
- 25.55 LBS
- BORE SIZE IMPERIAL:
- 3.625'
- FEATURES:
- SINGLE SPARK PLUG
- MODEL:
- SUPER STOCK
- PRODUCT NAME:
- CYLINDER HEAD KIT
- STYLE:
- STOCK COMPRESSION
- UNITS:
- KIT
- COLOR/FINISH:
- ALUMINUM
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
$1,895.95 -
S&S CYCLE Carburetor Support - Big Twin '66-'84 17-0092
S&S CYCLE
$20.95All steel construction with chrome plating, Includes hardware, Made in the U.S.A.10010047- SKU:
- 10010047
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MATERIAL:
- STEEL
- COLOR/FINISH:
- NATURAL
- MODEL:
- SUPER A/B/D CARB
- PRODUCT NAME:
- BRACKET
- TYPE:
- CARBURETOR
- BASE FINISH:
- NATURAL
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$20.95 -
S&S CYCLE Super Stock Motor Case 31-0010
S&S CYCLE
$2,152.95Cast from A356 T-6 heat-treated aluminum alloy, Includes crankcase bolts, washers and nuts, cylinder mounting studs, timing hole plug, magnetic drain plug, assorted breather and oil line fittings,...310010- SKU:
- 310010
- Availability:
- Ships Same Business Day
- Weight:
- 33.30 LBS
- TYPE:
- GENERATOR
- UNITS:
- KIT
- MODEL:
- SUPER STOCK®
- PRODUCT NAME:
- ENGINE CASE
- RIDING STYLE:
- STREET
- MATERIAL:
- A356 T-6 ALUMINUM ALLOY
- COLOR/FINISH:
- NATURAL
$2,152.95 -
S&S CYCLE E/G and CV Carburetor Guide Cable 11-2338P
S&S CYCLE
$40.95Made in the U.S.A.10030195- SKU:
- 10030195
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- RIDING STYLE:
- STREET
- TYPE:
- THROTTLE
- MODEL:
- FOR CV CARBURETORS
- UNITS:
- EACH
- PRODUCT NAME:
- CABLE GUIDE
$40.95 -
S&S CYCLE Roller Rocker Arms 900-4065A
S&S CYCLE
$649.95Forged from 8620 steel, heat-treated then shot-peened for additional strength and durability, Rocker arms have .75" long bushings instead of the .50" long bushings found on most other rocker arms,...09270015- SKU:
- 09270015
- Availability:
- Ships Same Business Day
- Weight:
- 2.61 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- FORGED
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- ROCKER ARM
- RIDING STYLE:
- STREET
- TYPE:
- ROLLER
- UNITS:
- SET OF 4
- APPLICATION:
- EXHAUST
- MATERIAL:
- 8620 STEEL
- MOUNTING POSITION:
- FRONT
$649.95 -
S&S CYCLE Cylinder Kit - Twin Cam 910-0481
S&S CYCLE
$1,386.95The Big Bore kit yields excellent results with stock cylinder heads, Easy installation: no need to bore or split existing cases, just swap the cylinders, Cylinders are constructed from premium...09310536- SKU:
- 09310536
- Availability:
- Ships Same Business Day
- Weight:
- 25.47 LBS
- DISPLACEMENT:
- 98'
- UNITS:
- KIT
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 4'
- STYLE:
- BIG BORE
- BORE SIZE IMPERIAL:
- 3.937'
- COLOR/FINISH:
- BLACK
- MATERIAL:
- ALUMINUM
- COMPRESSION RATIO IMPERIAL:
- 9.8:1
$1,386.95 -
S&S CYCLE Gasket Bowl - E/G 11-2386
S&S CYCLE
$8.95Made in the U.S.A.09345028- SKU:
- 09345028
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- STYLE:
- SUPER E
- STYLE:
- SUPER G
- UNITS:
- EACH
- TYPE:
- FLOAT BOWL
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
$8.95 -
S&S CYCLE Cam with Plate - 509 Series 330-0540
S&S CYCLE
$1,924.95Upgrade to S&S bolt-in performance camshafts, Improves engine performance - higher lift and optimized cam timing, S&S Quickee pushrods - easy installation, without removing rocker covers, Replaces...09251105- SKU:
- 09251105
- Availability:
- Ships Same Business Day
- Weight:
- 11.05 LBS
- EXHAUST CLOSE IMPERIAL:
- 11°
- EXHAUST DURATION IMPERIAL:
- 237°
- EXHAUST LIFT IMPERIAL:
- 0.509'
- INTAKE OPEN IMPERIAL:
- 18°
- MODEL:
- STANDARD
- RIDING STYLE:
- STREET
- INTAKE LIFT IMPERIAL:
- 0.509'
- PRODUCT NAME:
- CAMSHAFT
- TYPE:
- CHAIN
- INTAKE DURATION IMPERIAL:
- 216°
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- EXHAUST OPEN IMPERIAL:
- 46°
- GRIND:
- 509 SERIES
- INTAKE CLOSE IMPERIAL:
- 18°
$1,924.95 -
S&S CYCLE Bob Dish Air Cleaner Cover - Black 170-0123
S&S CYCLE
$195.95Fit the S&S Stealth air cleaner kits, Made in the U.S.A.10140119- SKU:
- 10140119
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- BASE FINISH:
- POWDER-COATED
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- AIR CLEANER COVER
- RIDING STYLE:
- STREET
- BASE COLOR:
- BLACK
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- STEALTH
- UNITS:
- EACH
- DESIGN:
- BOB DISH
$195.95 -
S&S CYCLE Cylinder Heads - Twin Cam 90-1106
S&S CYCLE
$1,795.95High port flow gives great performance now, and more later when additional upgrades are done, Heads are fully assembled with springs and valves, Compression ratios vary depending on cylinder heads...09300006- SKU:
- 09300006
- Availability:
- Ships Same Business Day
- Weight:
- 29.00 LBS
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- DISPLACEMENT:
- 89 CC
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- SUPER STOCK
- PRODUCT NAME:
- CYLINDER HEAD KIT
- COLOR/FINISH:
- WRINKLE BLACK
- UNITS:
- PAIR
$1,795.95 -
S&S CYCLE Hydraulic Lifter Unit 330-0379
S&S CYCLE
$149.95Quality hydraulic lifter unit, Made in the U.S.A.09290050- SKU:
- 09290050
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- LIFTER
- UNITS:
- EACH
- STYLE:
- HYDRAULIC
$149.95 -
S&S CYCLE Backplate Vent Screw - Twin Cam 17-0348
S&S CYCLE
$16.95Replacement components, Made in the U.S.A.10120248- SKU:
- 10120248
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MODEL:
- REPLACEMENT
- PRODUCT NAME:
- BREATHER SCREW
- THREAD PITCH:
- 3/8-16
- MATERIAL:
- ZINC ALLOY STEEL
- BASE FINISH:
- NATURAL
- COLOR/FINISH:
- SILVER
- MODEL:
- AIR CLEANER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$16.95 -
S&S CYCLE Roller Rocker Arms - M8 900-1084
S&S CYCLE
$674.95Forged from 8620 steel, heat-treated then shot-peened for additional strength and durability, Rocker arms have .75" long bushings instead of the .50" long bushings found on most other rocker arms,...09270038- SKU:
- 09270038
- Availability:
- Ships Same Business Day
- Weight:
- 4.20 LBS
- RIDING STYLE:
- STREET
- TYPE:
- ROLLER
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- ROCKER ARM
- UNITS:
- SET OF 4
- MOUNTING POSITION:
- REAR
$674.95 -
S&S CYCLE GUIDE LIFTER M8 330-0655
S&S CYCLE
$79.95High-quality replacement, Made in the U.S.A.09290075- SKU:
- 09290075
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE COLOR:
- BLACK
- BASE FINISH:
- ANODIZED
- COLOR/FINISH:
- ANODIZED BLACK
- PRODUCT NAME:
- TAPPET CUFFS
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
$79.95 -
On Sale
S&S CYCLE Intake Manifold - M8 - 55 mm - Silver 160-0241A
S&S CYCLE
MSRP: $214.95Now: $193.46Was: $214.95Intake Manifold - M8 - 55 mm - Silver Textured finish encourages fuel dissipation and atomization, Fits all 55 mm throttle bodies, Works with stock and ported heads , Includes intake seals, Made in...10500468- SKU:
- 10500468
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
MSRP: $214.95Now: $193.46Was: $214.95 -
On Sale
S&S CYCLE Cylinder Stud & Head Bolt Kit - '17-'23 M8 Models 900-1176
S&S CYCLE
MSRP: $249.95Now: $197.96Was: $249.95Cylinder Stud & Head Bolt Kit - '17-'23 M8 Models Studs, 8 studs with rounded thread roots, rather than flat, improving fatigue strength, 4140 Chrome Moly studs, oil quenched and tempered to...24011621- SKU:
- 24011621
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
MSRP: $249.95Now: $197.96Was: $249.95 -
On Sale
S&S CYCLE 2-into-1 Qualifier Exhaust System - Race Only - Guardian Black 550-1109
S&S CYCLE
MSRP: $1,441.95Now: $1,259.96Was: $1,441.952-into-1 Qualifier Exhaust System - Race Only - Guardian Black Inspired by the King of the Baggers race bike exhaust system, Full heat shields on front and rear header pipes, S&S race inspired...18002688- SKU:
- 18002688
- Availability:
- Ships Same Business Day
- Weight:
- 28.85 LBS
MSRP: $1,441.95Now: $1,259.96Was: $1,441.95 -
On Sale
S&S CYCLE Lower End Gasket Kit 31-2067
S&S CYCLE
MSRP: $52.95Now: $45.86Was: $52.95Contain the best quality gaskets available, Made in the U.S.A.312067- SKU:
- 312067
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- GASKET KIT
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- TYPE:
- LOWER END
MSRP: $52.95Now: $45.86Was: $52.95 -
S&S CYCLE HVHP Oil Pump Cover Kit - Standard 31-6298
S&S CYCLE
$715.95Supply-side gears are 9% wider than stock, Return gears are 28% wider than stock to ensure that the additional volume of oil supplied to the engine is scavenged and returned to the oil tank, reducing...316298- SKU:
- 316298
- Availability:
- Ships Same Business Day
- Weight:
- 3.62 LBS
- STYLE:
- '92 - '99 STYLE COVER
- BASE COLOR:
- SILVER
- FLOW RATE:
- HIGH VOLUME
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PUMP
- UNITS:
- KIT
- COLOR/FINISH:
- ALUMINUM
- FEATURES:
- S&S FLYWHEELS OR PINION SHAFT
- RIDING STYLE:
- STREET
- TYPE:
- OIL
$715.95 -
S&S CYCLE E and G Carburetor Needle 11-2195
S&S CYCLE
$19.95Needle 1.875" E; 2.0625" G, Made in the U.S.A.10030042- SKU:
- 10030042
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MODEL:
- S&S
- PRODUCT NAME:
- NEEDLE
- TYPE:
- CARBURETOR
$19.95 -
S&S CYCLE "E" for '79-'85 XL with VOES Unit 11-0406
S&S CYCLE
$795.95Super E has a 1-7/8" throat at the butterfly and a 1-9/16" venturi and is recommended for use on Big Twin or Sportster engines up to 100-cubic-inch, If there is a doubt as to which carburetor to use,...DS0406- SKU:
- DS0406
- Availability:
- Ships Same Business Day
- Weight:
- 6.81 LBS
- BASE COLOR:
- SILVER
- COLOR/FINISH:
- NATURAL
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- FEATURES:
- INCLUDES MANIFOLD
- PRODUCT NAME:
- CARBURETOR
- STYLE:
- BAND-STYLE INTAKE
- STYLE:
- SUPER E
$795.95
S&S Cycle
S&S Cycle stands as a towering icon in the motorcycle industry, renowned for its unwavering commitment to excellence and innovation in performance motorcycle parts. Founded in 1958 by the dynamic duo of George J. Smith and Stanley Stankos, S&S Cycle has carved its niche as the premier engineer and manufacturer of motorcycle engines and parts in America. Originating from a passion for racing, the company has spent over six decades perfecting the art of motorcycle performance, ensuring each piece that comes out of their factory not only meets but exceeds the high expectations of the powersports community. With a deep-rooted history in enhancing the power and performance of Harley-Davidson® motorcycles, S&S Cycle is the go-to brand for enthusiasts seeking unmatched quality and proven performance.
S&S Cycle Parts
S&S Cycle's product line extends far beyond just engines; it encompasses a broad array of components designed to elevate the performance of your motorcycle. From the initial solid lifter conversion kit featuring lightweight aluminum pushrods to state-of-the-art carburetors, air cleaners, and throttle bodies, every part is engineered with precision. The brand's dedication to innovation means continually refining and expanding their offerings to include everything a motorcycle might need for optimal performance and reliability.
S&S Cycle Engines
At the heart of S&S Cycle's legacy are its engines. Renowned for their robustness and reliability, S&S engines come in various styles, including the iconic Knucklehead, Shovelhead, Panhead, Evolution-style, and Twin-cam style engines. Each engine, like the T143 Assembled Long Block Engine, is meticulously constructed to provide unmatched power and torque, transforming any motorcycle into a high-performance machine. S&S's commitment to quality ensures that whether you're cruising the streets or dominating the racetrack, their engines will deliver unparalleled performance.
S&S Cams
S&S cams are designed to unlock the full potential of your motorcycle's engine. With a focus on maximizing horsepower, torque, and overall engine efficiency, S&S cams are a critical component for anyone looking to boost their bike's performance. Each cam is the result of exhaustive research and development, ensuring compatibility and impressive gains across various riding conditions. Whether you're upgrading an existing engine or building a custom setup, S&S cams are essential for achieving peak performance.
S&S Motorcycle Exhausts
To complement their engines and performance parts, S&S Cycle also offers a range of high-quality motorcycle exhaust systems. These exhausts are not only built to withstand the rigors of high-performance riding but are also designed to optimize exhaust flow, enhancing both sound and power output. From aggressive race-inspired designs to more subdued styles for daily riding, S&S Cycle's exhaust systems combine performance improvements with aesthetic appeal, making them a favorite among discerning riders.
