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
-
On Sale
S&S CYCLE Cam Chest Kit - 475G - Oil Cooled - M8 310-1014A
S&S CYCLE
MSRP: $1,924.95Now: $1,732.46Was: $1,924.95The S&S CYCLE Cam Chest Kit 475G is engineered for M8 engines that demand reliable oiling under extreme operating conditions. Whether you're pushing peak RPM on the track or maintaining consistent...09251312- SKU:
- 09251312
- Availability:
- Ships Same Business Day
- Weight:
- 12.45 LBS
- PRODUCT NAME:
- CAMCHEST KIT
- TYPE:
- GEAR
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- GLOSS
- UNITS:
- KIT
- FEATURES:
- OIL COOLED
- GRIND:
- 475G
- RIDING STYLE:
- STREET
MSRP: $1,924.95Now: $1,732.46Was: $1,924.95 -
On Sale
S&S CYCLE Cam - 550G - M8 310-1083A
S&S CYCLE
MSRP: $1,924.95Now: $1,732.46Was: $1,924.95The S&S Cycle 550G cam is engineered for big-bore M8 applications that demand reliability at sustained high RPM and high-lift conditions. Independent scavenge sections and increased flow capacity on...09251317- SKU:
- 09251317
- Availability:
- Ships Same Business Day
- Weight:
- 13.60 LBS
- FEATURES:
- OIL COOLED
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- TYPE:
- GEAR
- GRIND:
- 550G
- PRODUCT NAME:
- CAMCHEST KIT
- UNITS:
- KIT
MSRP: $1,924.95Now: $1,732.46Was: $1,924.95 -
On Sale
S&S CYCLE Cam Chest Kit - 585 EZ Start - Chain Drive 330-0546
S&S CYCLE
MSRP: $2,025.95Now: $1,823.36Was: $2,025.95If you're running a Harley-Davidson and want measurable gains in power delivery and throttle response, upgrading to performance camshafts is one of the highest-ROI modifications available. The S&S...09251181- SKU:
- 09251181
- Availability:
- Ships Same Business Day
- Weight:
- 11.20 LBS
- PRODUCT NAME:
- CAM KIT
- RIDING STYLE:
- STREET
- GRIND:
- 585 SERIES
- TYPE:
- CHAIN
- UNITS:
- KIT
- MODEL:
- EASY START
MSRP: $2,025.95Now: $1,823.36Was: $2,025.95Qty in Cart: 0Quantity:Price:MSRP: $2,025.95Now: $1,823.36Was: $2,025.95Subtotal: -
On Sale
S&S CYCLE CAM KIT 475G M8 17- 330-0645
S&S CYCLE
MSRP: $465.95Now: $419.36Was: $465.95If you're running a 107" or 114" M8 and want to unlock genuine performance gains without replacing your entire valve train, the S&S Cycle 475G Cam Kit delivers measurable horsepower through...09251172- SKU:
- 09251172
- Availability:
- Ships Same Business Day
- Weight:
- 4.15 LBS
- EXHAUST CLOSE IMPERIAL:
- 28.5° FRONT, 20.2° REAR
- EXHAUST OPEN IMPERIAL:
- 55.5° FRONT, 52.2° REAR
- INTAKE DURATION IMPERIAL:
- 213.5°
- INTAKE OPEN IMPERIAL:
- 6.2° FRONT, 2.2° REAR
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- EXHAUST DURATION IMPERIAL:
- 263.9° FRONT, 252.5° REAR
- GRIND:
- 475G
- INTAKE CLOSE IMPERIAL:
- 27.2° FRONT, 31.2° REAR
- RIDING STYLE:
- STREET
- TYPE:
- GEAR
- EXHAUST LIFT IMPERIAL:
- 0.475'
- INTAKE LIFT IMPERIAL:
- 0.475'
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- CAM
MSRP: $465.95Now: $419.36Was: $465.95 -
On Sale
S&S CYCLE CAM KIT 550C M8 17- 330-0643
S&S CYCLE
MSRP: $299.95Now: $269.96Was: $299.95The S&S Cycle 550C cam kit delivers the horsepower gains your 114" or larger M8 engine demands without compromising reliability. This is the proven choice for builders who want measurable performance...09251173- SKU:
- 09251173
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
- EXHAUST DURATION IMPERIAL:
- 273.1° FRONT, 277.8° REAR
- INTAKE CLOSE IMPERIAL:
- 29.4° FRONT, 31.1° REAR
- INTAKE DURATION IMPERIAL:
- 218.9° FRONT, 214.2° REAR
- INTAKE LIFT IMPERIAL:
- 0.550'
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- INTAKE OPEN IMPERIAL:
- 9.4° FRONT, 3.1° REAR
- PRODUCT NAME:
- CAM
- APPLICATION:
- INTAKE
- GRIND:
- 550C
- TYPE:
- CHAIN
- APPLICATION:
- EXHAUST
- EXHAUST CLOSE IMPERIAL:
- 30.5° FRONT, 38.4° REAR
- EXHAUST LIFT IMPERIAL:
- 0.550'
- EXHAUST OPEN IMPERIAL:
- 62.5° FRONT, 59.4° REAR
MSRP: $299.95Now: $269.96Was: $299.95 -
On Sale
S&S CYCLE CAM KIT 550G M8 17- 330-0647
S&S CYCLE
MSRP: $465.95Now: $419.36Was: $465.95The S&S Cycle 550G cam kit is engineered for riders running 114" and larger M8 engines who demand reliable, measurable horsepower gains without compromise. This complete kit eliminates guesswork—all...09251174- SKU:
- 09251174
- Availability:
- Ships Same Business Day
- Weight:
- 4.25 LBS
- EXHAUST DURATION IMPERIAL:
- 273.1° FRONT, 277.8° REAR
- GRIND:
- 550G
- INTAKE CLOSE IMPERIAL:
- 29.4° FRONT, 31.1° REAR
- INTAKE DURATION IMPERIAL:
- 218.9° FRONT, 214.2° REAR
- INTAKE LIFT IMPERIAL:
- 0.550'
- RIDING STYLE:
- STREET
- INTAKE OPEN IMPERIAL:
- 9.4° FRONT, 3.1° REAR
- PRODUCT NAME:
- CAM
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- EXHAUST CLOSE IMPERIAL:
- 30.5° FRONT, 38.4° REAR
- EXHAUST LIFT IMPERIAL:
- 0.550'
- EXHAUST OPEN IMPERIAL:
- 62.5° FRONT, 59.4° REAR
- TYPE:
- GEAR
MSRP: $465.95Now: $419.36Was: $465.95Qty in Cart: 0Quantity:Price:MSRP: $465.95Now: $419.36Was: $465.95Subtotal: -
On Sale
S&S CYCLE Intake Valve - 1.95" - Big Twin 90-2015
S&S CYCLE
MSRP: $90.95Now: $81.86Was: $90.95Maximizing airflow into your Big Twin engine starts with precision-engineered valve components that meet exacting tolerances. The S&S Cycle 1.95" intake valve delivers the reliability and performance...09260128- SKU:
- 09260128
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- RIDING STYLE:
- STREET
- HEAD DIAMETER IMPERIAL:
- 1.950'
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
MSRP: $90.95Now: $81.86Was: $90.95 -
On Sale
S&S CYCLE Exhaust Valve - 1.72" - Big Twin 90-2022
S&S CYCLE
MSRP: $90.95Now: $81.86Was: $90.95Maximizing exhaust flow is critical to unlocking your Big Twin's full potential, and valve quality directly impacts combustion efficiency and horsepower delivery. The S&S Cycle 1.72" exhaust valve is...09260129- SKU:
- 09260129
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- HEAD DIAMETER IMPERIAL:
- 1.720'
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- VALVE
MSRP: $90.95Now: $81.86Was: $90.95 -
On Sale
S&S CYCLE Camshaft - 540C - Chain Drive - M8 330-0713
S&S CYCLE
MSRP: $299.95Now: $269.96Was: $299.95If you're running a big bore M8 and want to maximize low-to-mid-range torque without chasing high RPM power, the S&S Cycle 540C camshaft delivers measurable gains where it matters most. This gear...09251337- SKU:
- 09251337
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- CAMSHAFT
- TYPE:
- CHAIN
- RIDING STYLE:
- STREET
MSRP: $299.95Now: $269.96Was: $299.95Qty in Cart: 0Quantity:Price:MSRP: $299.95Now: $269.96Was: $299.95Subtotal: -
On Sale
S&S CYCLE Camshaft with plates - 540G - Oil Cooled - M8 310-1119
S&S CYCLE
MSRP: $2,131.95Now: $1,918.76Was: $2,131.95If you're running a big bore M8 and prioritizing low-to-mid-range torque delivery, the S&S Cycle 540G camshaft is engineered to maximize performance below 6000 rpm where real-world power matters most...09251339- SKU:
- 09251339
- Availability:
- Ships Same Business Day
- Weight:
- 13.45 LBS
- PRODUCT NAME:
- CAMCHEST KIT
- TYPE:
- GEAR
- UNITS:
- KIT
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- FEATURES:
- OIL COOLED
- GRIND:
- 540G
MSRP: $2,131.95Now: $1,918.76Was: $2,131.95Qty in Cart: 0Quantity:Price:MSRP: $2,131.95Now: $1,918.76Was: $2,131.95Subtotal: -
On Sale
S&S CYCLE Camshaft - 540G - Gear Drive - M8 330-0715
S&S CYCLE
MSRP: $465.95Now: $419.36Was: $465.95If you're running a big-bore M8 and your power band sits below 6000 rpm, this S&S CYCLE camshaft unlocks measurable torque gains where it counts—in the rpm range where you actually need it. Gear...09251340- SKU:
- 09251340
- Availability:
- Ships Same Business Day
- Weight:
- 4.10 LBS
- RIDING STYLE:
- STREET
- TYPE:
- GEAR
- PRODUCT NAME:
- CAMSHAFT
- UNITS:
- KIT
MSRP: $465.95Now: $419.36Was: $465.95Qty in Cart: 0Quantity:Price:MSRP: $465.95Now: $419.36Was: $465.95Subtotal: -
On Sale
S&S CYCLE Camshaft - 590C - Chain Drive - M8 330-0730
S&S CYCLE
MSRP: $299.95Now: $269.96Was: $299.95The S&S Cycle 590C camshaft is engineered for M8 Harley-Davidson engines running chain drive systems, delivering measurable gains in mid-range torque and top-end power without sacrificing reliability...09251341- SKU:
- 09251341
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- PRODUCT NAME:
- CAMSHAFT
- GRIND:
- 590 SERIES
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- CHAIN
MSRP: $299.95Now: $269.96Was: $299.95 -
On Sale
S&S CYCLE Camshaft - 590G - Gear Drive - M8 330-0732
S&S CYCLE
MSRP: $465.95Now: $419.36Was: $465.95The S&S Cycle 590G Camshaft delivers the aggressive lift and duration curve that serious M8 builders demand for maximum horsepower and torque. Engineered for gear-drive applications, this billet...09251342- SKU:
- 09251342
- Availability:
- Ships Same Business Day
- Weight:
- 3.60 LBS
- GRIND:
- 590 SERIES
- RIDING STYLE:
- STREET
- TYPE:
- GEAR
- PRODUCT NAME:
- CAMSHAFT
- UNITS:
- EACH
MSRP: $465.95Now: $419.36Was: $465.95Qty in Cart: 0Quantity:Price:MSRP: $465.95Now: $419.36Was: $465.95Subtotal: -
On Sale
S&S CYCLE Camshaft with PV-3 Kit - 475C - Chain Drive 330-0725
S&S CYCLE
MSRP: $628.95Now: $566.06Was: $628.95If you're running a big-inch motor and want genuine performance gains without voiding your warranty or breaking the bank on tuning, this S&S 475C cam and PV-3 kit delivers 100+ hp at the wheel in a...09251345- SKU:
- 09251345
- Availability:
- Ships Same Business Day
- Weight:
- 3.10 LBS
- PRODUCT NAME:
- CAMSHAFT
- RIDING STYLE:
- STREET
- GRIND:
- 475C
- TYPE:
- CHAIN
- UNITS:
- EACH
MSRP: $628.95Now: $566.06Was: $628.95Qty in Cart: 0Quantity:Price:MSRP: $628.95Now: $566.06Was: $628.95Subtotal: -
On Sale
S&S CYCLE Camshaft with PV-3 Kit - 475G - Gear Drive 330-0726
S&S CYCLE
MSRP: $846.95Now: $762.26Was: $846.95Adding genuine horsepower without the headaches of custom tuning or warranty concerns is the foundation of smart performance upgrading. This S&S Cycle combo delivers a reliable 100+ hp gain at the...09251346- SKU:
- 09251346
- Availability:
- Ships Same Business Day
- Weight:
- 4.60 LBS
- PRODUCT NAME:
- CAMSHAFT
- RIDING STYLE:
- STREET
- GRIND:
- 475G
- UNITS:
- EACH
- TYPE:
- GEAR
MSRP: $846.95Now: $762.26Was: $846.95 -
On Sale
S&S CYCLE Cam - 465C - M8 310-0999B
S&S CYCLE
MSRP: $1,721.95Now: $1,549.76Was: $1,721.95If you're running an M8 Harley and demand reliable oil circulation under sustained high-RPM conditions, the S&S Cycle 465C cam delivers the scavenging performance and durability you need without...09251353- SKU:
- 09251353
- Availability:
- Ships Same Business Day
- Weight:
- 11.00 LBS
- GRIND:
- 465C
- RIDING STYLE:
- STREET
- TYPE:
- CHAIN
- UNITS:
- KIT
- COLOR/FINISH:
- CHROME
- FEATURES:
- WATER COOLED
- PRODUCT NAME:
- CAMCHEST KIT
MSRP: $1,721.95Now: $1,549.76Was: $1,721.95Qty in Cart: 0Quantity:Price:MSRP: $1,721.95Now: $1,549.76Was: $1,721.95Subtotal: -
On Sale
S&S CYCLE Cam Chest Kit - 475C - M8 310-1000B
S&S CYCLE
MSRP: $1,721.95Now: $1,549.76Was: $1,721.95The S&S Cycle 475C Cam Chest Kit is engineered for builders who demand reliable oiling system performance under high-RPM and high-lift conditions. This billet aluminum assembly eliminates the weak...09251354- SKU:
- 09251354
- Availability:
- Ships Same Business Day
- Weight:
- 11.15 LBS
- RIDING STYLE:
- STREET
- FEATURES:
- WATER COOLED
- PRODUCT NAME:
- CAMCHEST KIT
- UNITS:
- KIT
- TYPE:
- CHAIN
- COLOR/FINISH:
- CHROME
- GRIND:
- 475C
MSRP: $1,721.95Now: $1,549.76Was: $1,721.95Qty in Cart: 0Quantity:Price:MSRP: $1,721.95Now: $1,549.76Was: $1,721.95Subtotal: -
On Sale
S&S CYCLE HI-4N Ignition Module Kit - Harley Davidson 550-0502
S&S CYCLE
MSRP: $599.95Now: $539.96Was: $599.95If you're running a carbureted Harley and want reliable ignition performance without the complexity of aftermarket electronics, the S&S CYCLE HI-4N delivers proven single-fire and dual-fire...21010346- SKU:
- 21010346
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- PRODUCT NAME:
- IGNITION KIT
- FEATURES:
- PROGRAMMABLE
- TYPE:
- IGNITION MODULE
- UNITS:
- KIT
- COLOR/FINISH:
- GRAY
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
MSRP: $599.95Now: $539.96Was: $599.95 -
On Sale
S&S CYCLE Cam with Plate - 550C - M8 - Oil Cooled 310-1082B
S&S CYCLE
MSRP: $1,721.95Now: $1,549.76Was: $1,721.95If you're running a big-bore M8 and need reliable oil management at high RPM, this S&S 550C cam plate delivers the flow capacity and debris protection your engine demands. The independent scavenge...09251362- SKU:
- 09251362
- Availability:
- Ships Same Business Day
- Weight:
- 12.35 LBS
- COLOR/FINISH:
- CHROME
- GRIND:
- 550C
- FEATURES:
- OIL COOLED
- TYPE:
- CHAIN
- PRODUCT NAME:
- CAMCHEST KIT
- UNITS:
- KIT
- RIDING STYLE:
- STREET
MSRP: $1,721.95Now: $1,549.76Was: $1,721.95 -
On Sale
S&S CYCLE Single-Fire Ignition Coil - Harley Davidson - Black 55-1576
S&S CYCLE
MSRP: $173.95Now: $156.56Was: $173.95If you're running an S&S IST® ignition system or a custom Harley build with Delphi®-style VFI modules, you need a coil that can deliver consistent spark energy without compromise. The S&S Cycle...21020211- SKU:
- 21020211
- Availability:
- Ships Same Business Day
- Weight:
- 1.48 LBS
- IGNITION FIRE METHOD:
- SINGLE
- PRODUCT NAME:
- COIL
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- STYLE:
- EXTERNAL
- TYPE:
- IGNITION
- IGNITION TYPE:
- ELECTRONIC
- INPUT VOLTAGE:
- 12 V
- RIDING STYLE:
- STREET
MSRP: $173.95Now: $156.56Was: $173.95 -
On Sale
S&S CYCLE Camshaft - 540C - M8 310-1116A
S&S CYCLE
MSRP: $1,721.95Now: $1,549.76Was: $1,721.95If you're running a big-bore M8 and want to maximize torque without pushing into the high-RPM zone, the S&S Cycle 540C camshaft is engineered for your setup. This cam delivers the low-to-mid range...09251364- SKU:
- 09251364
- Availability:
- Ships Same Business Day
- Weight:
- 11.95 LBS
- GRIND:
- 540G
- TYPE:
- CHAIN
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- FEATURES:
- WATER COOLED
- PRODUCT NAME:
- CAMCHEST KIT
- UNITS:
- KIT
MSRP: $1,721.95Now: $1,549.76Was: $1,721.95 -
On Sale
S&S CYCLE Cams - 557 Series - Chain Drive - Twin Cam 330-0105
S&S CYCLE
MSRP: $418.95Now: $377.06Was: $418.95If you're running a Tri-Glide or other heavy cruiser that demands strong low-end torque and responsive mid-range power, the S&S Cycle 557 Series cam upgrade delivers the performance gains you need...09251158- SKU:
- 09251158
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
- APPLICATION:
- EXHAUST
- EXHAUST OPEN IMPERIAL:
- 38.8°
- INTAKE CLOSE IMPERIAL:
- 26.5°
- APPLICATION:
- INTAKE
- EXHAUST CLOSE IMPERIAL:
- 12.4°
- EXHAUST LIFT IMPERIAL:
- 0.557'
- PRODUCT NAME:
- CAM KIT
- TYPE:
- CHAIN
- GRIND:
- 557 SERIES
- INTAKE LIFT IMPERIAL:
- 0.557'
- RIDING STYLE:
- STREET
- UNITS:
- KIT
MSRP: $418.95Now: $377.06Was: $418.95 -
On Sale
S&S CYCLE Cam Kit with 4 gears - 510G 33-5177
S&S CYCLE
MSRP: $948.95Now: $854.06Was: $948.95If you're running a Twin Cam engine and chasing consistent power delivery, timing chain lash is costing you precision and headroom for aggressive cam profiles. The S&S Cycle Cam Kit with 4 gears...20072510- SKU:
- 20072510
- Availability:
- Ships Same Business Day
- Weight:
- 5.78 LBS
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- EXHAUST LIFT IMPERIAL:
- 0.510'
- PRODUCT NAME:
- CAM KIT
- RIDING STYLE:
- STREET
- TYPE:
- GEAR
- APPLICATION:
- EXHAUST
- GRIND:
- 510 SERIES
- INTAKE LIFT IMPERIAL:
- 0.510'
- EXHAUST LIFT AT TDC IMPERIAL:
- 0.187'
- INTAKE LIFT AT TDC IMPERIAL:
- 0.187'
MSRP: $948.95Now: $854.06Was: $948.95Qty in Cart: 0Quantity:Price:MSRP: $948.95Now: $854.06Was: $948.95Subtotal: -
On Sale
S&S CYCLE Cam Kit with 4 gears - 570G 33-5178
S&S CYCLE
MSRP: $948.95Now: $854.06Was: $948.95Timing chain lash and wear compromise valve timing precision on Twin Cam engines, directly impacting power delivery and engine reliability. The S&S Cycle Cam Kit with 4 gears replaces your stock...20072570- SKU:
- 20072570
- Availability:
- Ships Same Business Day
- Weight:
- 5.70 LBS
- INTAKE LOBE CENTERLINE IMPERIAL:
- 100°
- INTAKE OPEN IMPERIAL:
- 20°
- APPLICATION:
- EXHAUST
- EXHAUST LIFT AT TDC IMPERIAL:
- 0.179'
- INTAKE LIFT IMPERIAL:
- 0.570'
- EXHAUST DURATION IMPERIAL:
- 255°
- EXHAUST LIFT IMPERIAL:
- 0.570'
- EXHAUST LOBE CENTERLINE IMPERIAL:
- 107.5°
- INTAKE LIFT AT TDC IMPERIAL:
- 0.187'
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- EXHAUST OPEN IMPERIAL:
- 55°
- GRIND:
- 570 SERIES
- INTAKE DURATION IMPERIAL:
- 240°
- PRODUCT NAME:
- CAM KIT
- RIDING STYLE:
- STREET
- TYPE:
- GEAR
MSRP: $948.95Now: $854.06Was: $948.95 -
On Sale
S&S CYCLE Cam Kit with 4 Gears - 585G 33-5179
S&S CYCLE
MSRP: $948.95Now: $854.06Was: $948.95The S&S Cycle Cam Kit with 4 Gears (33-5179) delivers measurable power gains across the mid-range RPM band where most riding happens—making this the smart upgrade for riders seeking real-world...20072585- SKU:
- 20072585
- Availability:
- Ships Same Business Day
- Weight:
- 5.72 LBS
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- EXHAUST LIFT IMPERIAL:
- 0.585'
- EXHAUST LOBE CENTERLINE IMPERIAL:
- 110°
- EXHAUST OPEN IMPERIAL:
- 60°
- TYPE:
- GEAR
- EXHAUST CLOSE IMPERIAL:
- 20°
- INTAKE LOBE CENTERLINE IMPERIAL:
- 102.5°
- INTAKE OPEN IMPERIAL:
- 20°
- UNITS:
- KIT
- EXHAUST LIFT AT TDC IMPERIAL:
- 0.179'
- INTAKE CLOSE IMPERIAL:
- 45°
- INTAKE LIFT IMPERIAL:
- 0.585'
- PRODUCT NAME:
- CAM KIT
- RIDING STYLE:
- STREET
- EXHAUST DURATION IMPERIAL:
- 260°
- GRIND:
- 585 SERIES
- INTAKE DURATION IMPERIAL:
- 245°
- INTAKE LIFT AT TDC IMPERIAL:
- 0.186'
MSRP: $948.95Now: $854.06Was: $948.95Qty in Cart: 0Quantity:Price:MSRP: $948.95Now: $854.06Was: $948.95Subtotal: -
On Sale
S&S CYCLE Cam Kit with 4 Gears - 625G 33-5180
S&S CYCLE
MSRP: $948.95Now: $854.06Was: $948.95Timing chain lash is the silent killer of valve timing accuracy—it compromises your engine's ability to breathe at peak efficiency and creates unpredictable variables in a tuned build. The S&S CYCLE...20072625- SKU:
- 20072625
- Availability:
- Ships Same Business Day
- Weight:
- 5.70 LBS
- APPLICATION:
- INTAKE
- FEATURES:
- CAM KIT
- INTAKE DURATION IMPERIAL:
- 255°
- INTAKE LIFT IMPERIAL:
- 0.625'
- TYPE:
- GEAR
- EXHAUST CLOSE IMPERIAL:
- 20°
- EXHAUST LIFT IMPERIAL:
- 0.625'
- INTAKE CLOSE IMPERIAL:
- 55°
- INTAKE OPEN IMPERIAL:
- 20°
- UNITS:
- KIT
- EXHAUST LIFT AT TDC IMPERIAL:
- 0.184'
- GRIND:
- 625 SERIES
- INTAKE LOBE CENTERLINE IMPERIAL:
- 107.5°
- PRODUCT NAME:
- CAM KIT
- RIDING STYLE:
- STREET
- APPLICATION:
- EXHAUST
- EXHAUST DURATION IMPERIAL:
- 260°
- EXHAUST LOBE CENTERLINE IMPERIAL:
- 110°
- EXHAUST OPEN IMPERIAL:
- 60°
MSRP: $948.95Now: $854.06Was: $948.95Qty in Cart: 0Quantity:Price:MSRP: $948.95Now: $854.06Was: $948.95Subtotal: -
On Sale
S&S CYCLE Cam with Plate - 510 Series 310-0811
S&S CYCLE
MSRP: $2,029.95Now: $1,826.96Was: $2,029.95Stock cam chains are a ticking time bomb in high-mileage engines and demanding track applications. The S&S 510 Series delivers higher valve lift and optimized timing while replacing worn internals...09251099- SKU:
- 09251099
- Availability:
- Ships Same Business Day
- Weight:
- 12.85 LBS
- EXHAUST DURATION IMPERIAL:
- 252°
- EXHAUST LIFT IMPERIAL:
- 0.510'
- EXHAUST OPEN IMPERIAL:
- 52°
- TYPE:
- GEAR
- MODEL:
- STANDARD
- PRODUCT NAME:
- CAMSHAFT
- APPLICATION:
- INTAKE
- EXHAUST CLOSE IMPERIAL:
- 20°
- GRIND:
- 510 SERIES
- INTAKE CLOSE IMPERIAL:
- 38°
- INTAKE DURATION IMPERIAL:
- 238°
- INTAKE OPEN IMPERIAL:
- 20°
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- INTAKE LIFT IMPERIAL:
- 0.510'
- RIDING STYLE:
- STREET
MSRP: $2,029.95Now: $1,826.96Was: $2,029.95 -
On Sale
S&S CYCLE Compression Release Kit 90-4915
S&S CYCLE
MSRP: $448.95Now: $404.06Was: $448.95Cold-starting air-cooled engines is easier and more reliable with a compression release that reduces kickback and strain on your starter system. The S&S Cycle 90-4915 gives you instant control over...20099080- SKU:
- 20099080
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- PRODUCT NAME:
- COMPRESSION RELEASE KIT
- RIDING STYLE:
- STREET
- TYPE:
- ELECTRIC
- UNITS:
- KIT
MSRP: $448.95Now: $404.06Was: $448.95 -
On Sale
S&S CYCLE Compression Release Hole Plug 90-4916
S&S CYCLE
MSRP: $24.95Now: $22.46Was: $24.95If you're running a high-performance or aftermarket cylinder head, a proper compression release hole plug is essential to maintain cylinder integrity and prevent air leaks that kill efficiency. The...20099082- SKU:
- 20099082
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- COLOR/FINISH:
- ALUMINUM
- PRODUCT NAME:
- PLUG
- RIDING STYLE:
- STREET
- TYPE:
- COMPRESSION RELEASE
- UNITS:
- EACH
MSRP: $24.95Now: $22.46Was: $24.95Qty in Cart: 0Quantity:Price:MSRP: $24.95Now: $22.46Was: $24.95Subtotal: -
On Sale
S&S CYCLE Intake Valve - 2.000" 90-2000
S&S CYCLE
MSRP: $40.95Now: $36.86Was: $40.95The S&S Cycle 2.000" intake valve is engineered for maximum flow efficiency and reliability in high-performance applications. Whether you're building a competition engine or upgrading an existing...20082910- SKU:
- 20082910
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- HEAD DIAMETER IMPERIAL:
- 2.000'
- PRODUCT NAME:
- VALVE
MSRP: $40.95Now: $36.86Was: $40.95 -
On Sale
S&S CYCLE Exhaust Valve - 1.605" 90-2001
S&S CYCLE
MSRP: $81.95Now: $73.76Was: $81.95The S&S Cycle Exhaust Valve is engineered for riders and builders who demand reliable valve performance in high-rpm applications. This 1.605" valve is precision-manufactured to exacting tolerances,...20082911- SKU:
- 20082911
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- HEAD DIAMETER IMPERIAL:
- 1.605'
- RIDING STYLE:
- STREET
- MATERIAL:
- STAINLESS STEEL
MSRP: $81.95Now: $73.76Was: $81.95 -
On Sale
S&S CYCLE Cam with Plate - 551 Series 310-0815
S&S CYCLE
MSRP: $2,259.95Now: $2,033.96Was: $2,259.95Stock cam timing and lift limitations leave power on the table—the S&S 551 Series addresses this with higher valve lift and optimized cam events that unlock additional horsepower across the powerband...09251103- SKU:
- 09251103
- Availability:
- Ships Same Business Day
- Weight:
- 12.85 LBS
- EXHAUST OPEN IMPERIAL:
- 41°
- GRIND:
- 551 SERIES
- INTAKE DURATION IMPERIAL:
- 215°
- INTAKE LIFT IMPERIAL:
- 0.550'
- PRODUCT NAME:
- CAMSHAFT
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- EXHAUST DURATION IMPERIAL:
- 237°
- MODEL:
- EASY START
- RIDING STYLE:
- STREET
- TYPE:
- GEAR
- APPLICATION:
- EXHAUST
- EXHAUST CLOSE IMPERIAL:
- 17°
- EXHAUST LIFT IMPERIAL:
- 0.550'
- INTAKE CLOSE IMPERIAL:
- 19°
- INTAKE OPEN IMPERIAL:
- 17°
MSRP: $2,259.95Now: $2,033.96Was: $2,259.95 -
On Sale
S&S CYCLE Piston Kit 92-1214
S&S CYCLE
MSRP: $546.95Now: $492.26Was: $546.95Building a stroker engine demands pistons engineered to handle increased displacement and cylinder pressure—these S&S forged pistons are purpose-built for the 106" stroker platform. The 3-7/8" bore...20012910- SKU:
- 20012910
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- BORE OVERSIZE - IMPERIAL:
- +0.005'
- BORE SIZE IMPERIAL:
- 3.875'
- STROKE LENGTH IMPERIAL:
- 4-1/2'
- BORE - OVERSIZE:
- +0,005'
- PISTON MATERIAL:
- FORGED ALUMINUM
- UNITS:
- KIT
- DISPLACEMENT:
- 106'
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
MSRP: $546.95Now: $492.26Was: $546.95 -
On Sale
S&S CYCLE Cam with Plate - 510 Series 330-0541
S&S CYCLE
MSRP: $1,924.95Now: $1,732.46Was: $1,924.95Stock cam chains are a weak point on high-output engines—they stretch, slack, and fail without warning. The S&S 510 Series cam package eliminates this vulnerability by replacing your entire valve...09251106- SKU:
- 09251106
- Availability:
- Ships Same Business Day
- Weight:
- 11.20 LBS
- INTAKE CLOSE IMPERIAL:
- 38°
- INTAKE LIFT IMPERIAL:
- 0.510'
- MODEL:
- STANDARD
- PRODUCT NAME:
- CAMSHAFT
- RIDING STYLE:
- STREET
- EXHAUST CLOSE IMPERIAL:
- 20°
- GRIND:
- 510 SERIES
- INTAKE OPEN IMPERIAL:
- 20°
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- EXHAUST DURATION IMPERIAL:
- 252°
- EXHAUST LIFT IMPERIAL:
- 0.510'
- TYPE:
- CHAIN
- APPLICATION:
- EXHAUST
- EXHAUST OPEN IMPERIAL:
- 52°
- INTAKE DURATION IMPERIAL:
- 238°
MSRP: $1,924.95Now: $1,732.46Was: $1,924.95Qty in Cart: 0Quantity:Price:MSRP: $1,924.95Now: $1,732.46Was: $1,924.95Subtotal: -
On Sale
S&S CYCLE Cam with Plate - 551 Series - Easy Start 330-0542
S&S CYCLE
MSRP: $2,025.95Now: $1,823.36Was: $2,025.95Stock cam systems on Harley-Davidson engines are vulnerable to chain stretch, timing degradation, and premature wear—especially under high-RPM riding conditions. The S&S Cycle 551 Series Easy Start...09251107- SKU:
- 09251107
- Availability:
- Ships Same Business Day
- Weight:
- 10.95 LBS
- EXHAUST DURATION IMPERIAL:
- 237°
- RIDING STYLE:
- STREET
- TYPE:
- CHAIN
- APPLICATION:
- EXHAUST
- EXHAUST OPEN IMPERIAL:
- 41°
- GRIND:
- 551 SERIES
- INTAKE CLOSE IMPERIAL:
- 19°
- PRODUCT NAME:
- CAMSHAFT
- EXHAUST CLOSE IMPERIAL:
- 17°
- EXHAUST LIFT IMPERIAL:
- 0.550'
- INTAKE DURATION IMPERIAL:
- 215°
- INTAKE LIFT IMPERIAL:
- 0.550'
- INTAKE OPEN IMPERIAL:
- 17°
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- MODEL:
- EASY START
MSRP: $2,025.95Now: $1,823.36Was: $2,025.95Qty in Cart: 0Quantity:Price:MSRP: $2,025.95Now: $1,823.36Was: $2,025.95Subtotal: -
On Sale
S&S CYCLE Cam with Plate - 585 Series - Easy Start 330-0543
S&S CYCLE
MSRP: $2,025.95Now: $1,823.36Was: $2,025.95Stock cam chains stretch and fail—leaving you stranded or facing catastrophic engine damage. The S&S 585 Series Easy Start cam upgrade replaces that vulnerable stock system with precision-engineered,...09251108- SKU:
- 09251108
- Availability:
- Ships Same Business Day
- Weight:
- 10.75 LBS
- INTAKE CLOSE IMPERIAL:
- 45°
- RIDING STYLE:
- STREET
- EXHAUST CLOSE IMPERIAL:
- 20°
- INTAKE LIFT IMPERIAL:
- 0.585'
- INTAKE OPEN IMPERIAL:
- 20°
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- EXHAUST DURATION IMPERIAL:
- 260°
- EXHAUST OPEN IMPERIAL:
- 60°
- GRIND:
- 585 SERIES
- INTAKE DURATION IMPERIAL:
- 245°
- PRODUCT NAME:
- CAMSHAFT
- TYPE:
- CHAIN
- APPLICATION:
- INTAKE
- EXHAUST LIFT IMPERIAL:
- 0.585'
- MODEL:
- EASY START
MSRP: $2,025.95Now: $1,823.36Was: $2,025.95Qty in Cart: 0Quantity:Price:MSRP: $2,025.95Now: $1,823.36Was: $2,025.95Subtotal: -
On Sale
S&S CYCLE Rings for 106" Kit 94-1297X
S&S CYCLE
MSRP: $75.95Now: $68.36Was: $75.95Piston rings are a wear item that directly impacts compression, oil control, and overall engine efficiency—especially critical in high-performance 106" applications where tolerances are tight and...20022913- SKU:
- 20022913
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PISTON SIZE IMPERIAL:
- +0.020'
- PRODUCT NAME:
- PISTON RING
- TYPE:
- REPLACEMENT
- BORE SIZE IMPERIAL:
- 3.875'
- RIDING STYLE:
- STREET
- UNITS:
- SET
MSRP: $75.95Now: $68.36Was: $75.95 -
On Sale
S&S CYCLE SWITCH,OIL PRESSURE,84-'9 31-2016
S&S CYCLE
MSRP: $27.95Now: $25.16Was: $27.95An accurate oil pressure reading is critical to engine diagnostics—this S&S Cycle switch gives you reliable monitoring to prevent costly damage from low-pressure conditions. Whether you're building a...21060398- SKU:
- 21060398
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- SWITCH
- TYPE:
- OIL PRESSURE
- RIDING STYLE:
- STREET
MSRP: $27.95Now: $25.16Was: $27.95 -
On Sale
S&S CYCLE Pinion Shaft Conversion Kit 33-4148
S&S CYCLE
MSRP: $189.95Now: $170.96Was: $189.95If you're running a high-performance S&S Cycle engine build, drivetrain durability depends on precision-engineered internal components. The Pinion Shaft Conversion Kit 33-4148 ensures proper gear...334148- SKU:
- 334148
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PRODUCT NAME:
- CONVERSION KIT
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- TYPE:
- PINION SHAFT
MSRP: $189.95Now: $170.96Was: $189.95 -
On Sale
S&S CYCLE Cam - 551 Series - Gear Drive - Twin Cam 106-4868
S&S CYCLE
MSRP: $948.95Now: $854.06Was: $948.95If you're running a Twin Cam 106 and want measurable gains in low-end torque without a complete engine rebuild, the S&S Cycle 551 Series Gear Drive Cam delivers where it counts. By eliminating timing...09250959- SKU:
- 09250959
- Availability:
- Ships Same Business Day
- Weight:
- 6.20 LBS
- APPLICATION:
- EXHAUST
- EXHAUST CLOSE IMPERIAL:
- 17°
- EXHAUST LIFT IMPERIAL:
- 0.550'
- EXHAUST LOBE CENTERLINE IMPERIAL:
- 102°
- INTAKE CLOSE IMPERIAL:
- 19°
- INTAKE DURATION IMPERIAL:
- 216°
- EXHAUST DURATION IMPERIAL:
- 238°
- EXHAUST OPEN IMPERIAL:
- 41°
- INTAKE LIFT AT TDC IMPERIAL:
- 0.178'
- APPLICATION:
- INTAKE
- INTAKE LIFT IMPERIAL:
- 0.550'
- INTAKE LOBE CENTERLINE IMPERIAL:
- 91°
- INTAKE OPEN IMPERIAL:
- 17°
- RIDING STYLE:
- STREET
- TYPE:
- GEAR
- EXHAUST LIFT AT TDC IMPERIAL:
- 0.170'
- GRIND:
- 551 SERIES
- PRODUCT NAME:
- CAMSHAFT
- UNITS:
- KIT
MSRP: $948.95Now: $854.06Was: $948.95
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.
