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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On Sale
S&S CYCLE CAM KIT 475C M8 17- 330-0641
S&S CYCLE
MSRP: $299.95Now: $269.96Was: $299.95The S&S Cycle 475C cam kit is engineered to unlock measurable horsepower gains from your M8 platform without requiring internal machine work or valve train modifications. Whether you're building a...09251171- SKU:
- 09251171
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 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:
- EXHAUST
- EXHAUST LIFT IMPERIAL:
- 0.475'
- GRIND:
- 475C
- INTAKE LIFT IMPERIAL:
- 0.475'
- APPLICATION:
- INTAKE
- EXHAUST DURATION IMPERIAL:
- 263.9° FRONT, 252.5° REAR
- INTAKE CLOSE IMPERIAL:
- 27.2° FRONT, 31.2° REAR
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CAM
- TYPE:
- CHAIN
MSRP: $299.95Now: $269.96Was: $299.95Qty in Cart: 0Quantity:Price:MSRP: $299.95Now: $269.96Was: $299.95Subtotal: -
On Sale
S&S CYCLE Cylinder Heads 106-4277
S&S CYCLE
MSRP: $2,149.95Now: $1,934.96Was: $2,149.95S&S Cycle cylinder heads deliver measurable flow improvements that enhance performance immediately while laying the foundation for future engine modifications. Whether you're running a stock 88" big...09300062- SKU:
- 09300062
- Availability:
- Ships Same Business Day
- Weight:
- 28.65 LBS
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- SUPER STOCK
- PRODUCT NAME:
- CYLINDER HEAD KIT
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- SILVER
- UNITS:
- PAIR
- DISPLACEMENT:
- 79 CC
MSRP: $2,149.95Now: $1,934.96Was: $2,149.95 -
On Sale
S&S CYCLE Cylinder Heads - Twin Cam 106-3227
S&S CYCLE
MSRP: $1,995.95Now: $1,796.36Was: $1,995.95S&S Cycle cylinder heads deliver measurable high-port flow gains that unlock performance now while preserving headroom for future upgrades. Whether you're running a stock 88-cubic-inch or pushing a...09300063- SKU:
- 09300063
- Availability:
- Ships Same Business Day
- Weight:
- 28.50 LBS
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- SUPER STOCK
- PRODUCT NAME:
- CYLINDER HEAD KIT
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- DISPLACEMENT:
- 79 CC
- COLOR/FINISH:
- SILVER
- UNITS:
- PAIR
MSRP: $1,995.95Now: $1,796.36Was: $1,995.95 -
On Sale
S&S CYCLE Cylinder Heads - Twin Cam 106-3233
S&S CYCLE
MSRP: $1,995.95Now: $1,796.36Was: $1,995.95If you're building a Twin Cam engine that demands reliable airflow and the flexibility to upgrade later, S&S Cycle cylinder heads deliver the port flow you need without forcing a complete rebuild...09300064- SKU:
- 09300064
- Availability:
- Ships Same Business Day
- Weight:
- 28.65 LBS
- COLOR/FINISH:
- WRINKLE BLACK
- DISPLACEMENT:
- 79 CC
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- PRODUCT NAME:
- CYLINDER HEAD KIT
- COLOR/FINISH:
- POWDER-COATED
- MATERIAL:
- ALUMINUM
- MODEL:
- SUPER STOCK
MSRP: $1,995.95Now: $1,796.36Was: $1,995.95 -
On Sale
S&S CYCLE Cylinder Heads - Twin Cam 106-3240
S&S CYCLE
MSRP: $1,995.95Now: $1,796.36Was: $1,995.95If you're building a Twin Cam engine that demands serious port flow without sacrificing reliability, S&S Cycle cylinder heads deliver the airflow foundation every upgrade depends on. These fully...09300066- SKU:
- 09300066
- Availability:
- Ships Same Business Day
- Weight:
- 28.50 LBS
- COLOR/FINISH:
- WRINKLE BLACK
- DISPLACEMENT:
- 89 CC
- UNITS:
- PAIR
- PRODUCT NAME:
- CYLINDER HEAD KIT
- COLOR/FINISH:
- POWDER-COATED
- MATERIAL:
- ALUMINUM
- MODEL:
- SUPER STOCK
- RIDING STYLE:
- STREET
MSRP: $1,995.95Now: $1,796.36Was: $1,995.95 -
On Sale
S&S CYCLE Headbolt Kit 93-3070
S&S CYCLE
MSRP: $149.95Now: $134.96Was: $149.95Proper head bolt specifications are critical for cylinder head clamping force, sealing integrity, and long-term reliability on high-performance engines. The S&S CYCLE 93-3070 kit delivers the...09300023- SKU:
- 09300023
- Availability:
- Ships Same Business Day
- Weight:
- 1.64 LBS
MSRP: $149.95Now: $134.96Was: $149.95Qty in Cart: 0Quantity:Price:MSRP: $149.95Now: $134.96Was: $149.95Subtotal: -
On Sale
S&S CYCLE Cylinder Heads - Twin Cam 90-1293
S&S CYCLE
MSRP: $1,815.95Now: $1,634.36Was: $1,815.95The S&S CYCLE Cylinder Heads (90-1293) deliver measurable port flow improvements that unlock performance gains now while preserving headroom for future upgrades—whether you're running stock...09300058- SKU:
- 09300058
- Availability:
- Ships Same Business Day
- Weight:
- 28.71 LBS
- COLOR/FINISH:
- WRINKLE BLACK
- DISPLACEMENT:
- 79 CC
- PRODUCT NAME:
- CYLINDER HEAD KIT
- COLOR/FINISH:
- POWDER-COATED
- MATERIAL:
- ALUMINUM
- MODEL:
- SUPER STOCK
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
MSRP: $1,815.95Now: $1,634.36Was: $1,815.95 -
On Sale
S&S CYCLE Tappet Roller Kit 330-0377
S&S CYCLE
MSRP: $163.95Now: $147.56Was: $163.95Tappet roller wear is one of the most common failure points in high-performance engine builds, directly impacting valve train reliability and longevity. The S&S CYCLE Tappet Roller Kit 330-0377...09290049- SKU:
- 09290049
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- RIDING STYLE:
- STREET
- UNITS:
- 4 PACK
- PRODUCT NAME:
- ROLLER KIT
- TYPE:
- TAPPET
- MATERIAL:
- 52100 STEEL
- MATERIAL:
- CHROMOLY STEEL
MSRP: $163.95Now: $147.56Was: $163.95 -
On Sale
S&S CYCLE Lifters - Standard 330-0380
S&S CYCLE
MSRP: $699.95Now: $629.96Was: $699.95Noisy valve trains rob your engine of efficiency and indicate wear that compounds over time. S&S Cycle lifters eliminate mechanical valve train noise while maintaining precise hydraulic action,...09290051- SKU:
- 09290051
- Availability:
- Ships Same Business Day
- Weight:
- 1.14 LBS
- SIZE IMPERIAL:
- STANDARD
- UNITS:
- SET OF 4
- RIDING STYLE:
- STREET
- STYLE:
- HYDRAULIC
- PRODUCT NAME:
- TAPPET
- SIZE:
- STANDARD
MSRP: $699.95Now: $629.96Was: $699.95 -
On Sale
S&S CYCLE Lifters - +.003 330-0381
S&S CYCLE
MSRP: $835.95Now: $752.36Was: $835.95Worn or undersized lifters compromise valve train stability and introduce costly noise into your engine bay. S&S CYCLE's +.003 lifters deliver precision-machined construction with premium hydraulic...09290052- SKU:
- 09290052
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- RIDING STYLE:
- STREET
- STYLE:
- HYDRAULIC
- PRODUCT NAME:
- TAPPET
- SIZE:
- OVERSIZE (+0,003')
- SIZE IMPERIAL:
- OVERSIZE (+0.003')
- UNITS:
- SET OF 4
MSRP: $835.95Now: $752.36Was: $835.95 -
On Sale
S&S CYCLE High-Quality Tappet Roller Kit 330-0378
S&S CYCLE
MSRP: $183.95Now: $165.56Was: $183.95Precise valve train geometry is non-negotiable in high-performance engines, and worn tappet rollers directly compromise lift accuracy and duration—costing you horsepower and reliability. The S&S...09290053- SKU:
- 09290053
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- RIDING STYLE:
- STREET
- UNITS:
- 4 PACK
- TYPE:
- TAPPET
- PRODUCT NAME:
- ROLLER KIT
- MATERIAL:
- 52100 STEEL
- MATERIAL:
- CHROMOLY STEEL
MSRP: $183.95Now: $165.56Was: $183.95 -
On Sale
S&S CYCLE Lifter - Standard - XL 330-0288
S&S CYCLE
MSRP: $226.95Now: $204.26Was: $226.95Valve noise and inconsistent lash control are reliability killers in high-performance engines—especially under sustained RPM. The S&S CYCLE Standard XL Lifter eliminates these issues with precision...09290055- SKU:
- 09290055
- Availability:
- Ships Same Business Day
- Weight:
- 1.31 LBS
MSRP: $226.95Now: $204.26Was: $226.95Qty in Cart: 0Quantity:Price:MSRP: $226.95Now: $204.26Was: $226.95Subtotal: -
On Sale
S&S CYCLE Lifters with HL‚²T Kit 33-5353
S&S CYCLE
MSRP: $409.95Now: $368.96Was: $409.95If you're running heavy-duty valve springs and high-RPM power in your build, stock lifters will hold you back—and potentially fail under the stress. The S&S Cycle HL²T Kit addresses the real-world...09290061- SKU:
- 09290061
- Availability:
- Ships Same Business Day
- Weight:
- 1.41 LBS
- PRODUCT NAME:
- LIFTER
- UNITS:
- SET OF 4
- RIDING STYLE:
- STREET
- STYLE:
- HYDRAULIC
MSRP: $409.95Now: $368.96Was: $409.95 -
On Sale
S&S CYCLE Lifter Guide 330-0741
S&S CYCLE
MSRP: $81.95Now: $73.76Was: $81.95At high RPM and elevated valve lift, tappet stability becomes critical to engine reliability and performance. The S&S Cycle Lifter Guide 330-0741 eliminates the deflection and wear that can...09290087- SKU:
- 09290087
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- TAPPET CUFFS
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
MSRP: $81.95Now: $73.76Was: $81.95 -
On Sale
S&S CYCLE Cylinder Head Kit - Big Twin 90-1004
S&S CYCLE
MSRP: $1,949.95Now: $1,754.96Was: $1,949.95Upgrading to S&S CYCLE cylinder heads transforms your Big Twin engine's breathing efficiency and power delivery, unlocking measurable gains across the RPM range. These fully assembled heads feature...09300007- SKU:
- 09300007
- Availability:
- Ships Same Business Day
- Weight:
- 24.56 LBS
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ALUMINUM
- UNITS:
- PAIR
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- SUPER STOCK
- PRODUCT NAME:
- CYLINDER HEAD KIT
MSRP: $1,949.95Now: $1,754.96Was: $1,949.95 -
On Sale
S&S CYCLE Cylinder Head Kit - Big Twin 90-1504
S&S CYCLE
MSRP: $1,799.95Now: $1,619.96Was: $1,799.95S&S Cycle cylinder heads are engineered to unlock significant performance gains on Big Twin Harley-Davidson engines through improved airflow, combustion efficiency, and valve lift capabilities...09300008- SKU:
- 09300008
- Availability:
- Ships Same Business Day
- Weight:
- 24.75 LBS
- MATERIAL:
- ALUMINUM
- MATERIAL:
- STAINLESS STEEL
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- SUPER STOCK
- PRODUCT NAME:
- CYLINDER HEAD KIT
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
MSRP: $1,799.95Now: $1,619.96Was: $1,799.95 -
On Sale
S&S CYCLE Cylinder Head Kit - Big Twin 90-1491
S&S CYCLE
MSRP: $1,895.95Now: $1,706.36Was: $1,895.95A high-performance cylinder head kit engineered to unlock genuine horsepower and torque gains on Big Twin engines without requiring a complete rebuild. S&S Cycle's fully assembled heads eliminate the...09300013- SKU:
- 09300013
- Availability:
- Ships Same Business Day
- Weight:
- 24.85 LBS
- FEATURES:
- DUAL SPARK PLUG
- MODEL:
- SUPER STOCK
- PRODUCT NAME:
- CYLINDER HEAD KIT
- UNITS:
- KIT
- COLOR/FINISH:
- ALUMINUM
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- BORE SIZE IMPERIAL:
- 3.625'
- STYLE:
- HIGH COMPRESSION
MSRP: $1,895.95Now: $1,706.36Was: $1,895.95 -
On Sale
S&S CYCLE Head Bolt Cover Magnetic 50-0333
S&S CYCLE
MSRP: $91.95Now: $82.76Was: $91.95If you're running S&S performance heads, protecting your investment starts with the details. These magnetic cover assemblies keep debris and moisture away from your headbolts while delivering a...09300014- SKU:
- 09300014
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- STYLE:
- MAGNETIC
- TYPE:
- CAP
- BASE FINISH:
- CHROME
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- APPLICATION:
- HEAD BOLT
- BASE COLOR:
- SILVER
- UNITS:
- 4 PACK
MSRP: $91.95Now: $82.76Was: $91.95 -
On Sale
S&S CYCLE Cylinder Head Kit - Big Twin 90-1496
S&S CYCLE
MSRP: $1,723.95Now: $1,551.56Was: $1,723.95A cylinder head is where combustion happens—and where performance is made or lost. The S&S Cycle Big Twin 90-1496 kit delivers a completely assembled, flow-optimized solution that eliminates the...09300015- SKU:
- 09300015
- Availability:
- Ships Same Business Day
- Weight:
- 25.56 LBS
- MODEL:
- SUPER STOCK
- PRODUCT NAME:
- CYLINDER HEAD KIT
- STYLE:
- STOCK COMPRESSION
- BORE SIZE IMPERIAL:
- 3.4375'
- COLOR/FINISH:
- ALUMINUM
- FEATURES:
- SINGLE SPARK PLUG
- UNITS:
- KIT
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
MSRP: $1,723.95Now: $1,551.56Was: $1,723.95 -
On Sale
S&S CYCLE Performance Replacement Head 106-6059
S&S CYCLE
MSRP: $1,468.95Now: $1,322.06Was: $1,468.95If you're running a smaller displacement engine and looking to unlock real performance gains without sacrificing reliability, the S&S CYCLE Performance Replacement Head 106-6059 delivers measurable...09300154- SKU:
- 09300154
- Availability:
- Ships Same Business Day
- Weight:
- 24.60 LBS
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- DISPLACEMENT:
- 76 CC
- COLOR/FINISH:
- SILVER
- PRODUCT NAME:
- CYLINDER HEAD KIT
- COLOR/FINISH:
- POWDER-COATED
- MATERIAL:
- ALUMINUM
- MODEL:
- SUPER STOCK
MSRP: $1,468.95Now: $1,322.06Was: $1,468.95Qty in Cart: 0Quantity:Price:MSRP: $1,468.95Now: $1,322.06Was: $1,468.95Subtotal: -
On Sale
S&S CYCLE Cylinder Head Kit 90-1499
S&S CYCLE
MSRP: $1,895.95Now: $1,706.36Was: $1,895.95A quality cylinder head is the foundation of engine performance—it controls airflow, combustion efficiency, and overall power delivery. The S&S Cycle 90-1499 arrives completely assembled and tested,...09300134- SKU:
- 09300134
- Availability:
- Ships Same Business Day
- Weight:
- 24.01 LBS
- MODEL:
- SUPER STOCK
- PRODUCT NAME:
- CYLINDER HEAD KIT
- STYLE:
- STOCK COMPRESSION
- RIDING STYLE:
- STREET
- BORE SIZE IMPERIAL:
- 3.625'
- MATERIAL:
- CAST
- COLOR/FINISH:
- ALUMINUM
- FEATURES:
- SINGLE SPARK PLUG
- MATERIAL:
- IRON
- UNITS:
- KIT
MSRP: $1,895.95Now: $1,706.36Was: $1,895.95 -
On Sale
S&S CYCLE Exhaust Stud Flange 50-0493
S&S CYCLE
MSRP: $8.95Now: $8.06Was: $8.95If you're rebuilding a classic or modern Harley engine, a quality exhaust stud flange is critical for a leak-free seal and reliable performance. The S&S Cycle 50-0493 delivers the precision fit and...09300136- SKU:
- 09300136
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
MSRP: $8.95Now: $8.06Was: $8.95 -
On Sale
S&S CYCLE Replacement Silicone Solenoid Caps 55-1009
S&S CYCLE
MSRP: $9.95Now: $8.96Was: $9.95S&S Cycle solenoid caps are subject to heat, vibration, and environmental stress during operation—and a compromised cap can lead to electrical failures or performance inconsistencies in your...09300137- SKU:
- 09300137
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- COLOR/FINISH:
- WHITE
- MATERIAL:
- SILICONE
- PRODUCT NAME:
- CAP
- TYPE:
- COMPRESSION RELEASE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $9.95Now: $8.96Was: $9.95Qty in Cart: 0Quantity:Price:MSRP: $9.95Now: $8.96Was: $9.95Subtotal: -
On Sale
S&S CYCLE Valve Spring Shim 90-2087
S&S CYCLE
MSRP: $7.95Now: $7.16Was: $7.95Valve spring shims are critical for maintaining proper valve train geometry and preload in high-performance engines. This S&S Cycle shim ensures accurate spring pressure across the RPM band,...09300138- SKU:
- 09300138
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- COLOR/FINISH:
- BLACK
- TYPE:
- VALVE SPRING
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $7.95Now: $7.16Was: $7.95 -
On Sale
S&S CYCLE Cylinder Heads - Black 900-0251
S&S CYCLE
MSRP: $1,795.95Now: $1,616.36Was: $1,795.95The S&S CYCLE 900-0251 cylinder heads deliver the port flow efficiency needed to maximize performance gains both now and through future upgrades. Whether you're running a stock big-twin or planning...09300139- SKU:
- 09300139
- Availability:
- Ships Same Business Day
- Weight:
- 29.30 LBS
- COLOR/FINISH:
- BLACK
- DISPLACEMENT:
- 79 CC
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- COLOR/FINISH:
- POWDER-COATED
- MATERIAL:
- ALUMINUM
- MODEL:
- SUPER STOCK
- COLOR/FINISH:
- WRINKLE BLACK
- PRODUCT NAME:
- CYLINDER HEAD KIT
MSRP: $1,795.95Now: $1,616.36Was: $1,795.95 -
On Sale
S&S CYCLE Performance Replacement Head 106-6064
S&S CYCLE
MSRP: $1,553.95Now: $1,398.56Was: $1,553.95If you're running a smaller displacement engine and leaving performance on the table, the S&S Cycle Performance Replacement Head 106-6064 delivers measurable gains in flow and compression without...09300141- SKU:
- 09300141
- Availability:
- Ships Same Business Day
- Weight:
- 25.21 LBS
- DISPLACEMENT:
- 76 CC
- UNITS:
- PAIR
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- POWDER-COATED
- MATERIAL:
- ALUMINUM
- MODEL:
- SUPER STOCK
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CYLINDER HEAD KIT
MSRP: $1,553.95Now: $1,398.56Was: $1,553.95Qty in Cart: 0Quantity:Price:MSRP: $1,553.95Now: $1,398.56Was: $1,553.95Subtotal: -
On Sale
S&S CYCLE Spring Kit - .605" - M8 900-0958
S&S CYCLE
MSRP: $395.95Now: $356.36Was: $395.95If you're running aggressive valve timing or high-rpm applications on your M8, stock valve springs simply won't cut it—you'll lose power and risk catastrophic valve float. The S&S Cycle Spring Kit is...09262972- SKU:
- 09262972
- Availability:
- Ships Same Business Day
- Weight:
- 1.01 LBS
- PRODUCT NAME:
- SPRING KIT
- SPRING SEAT PRESSURE:
- 178 LB
- UNITS:
- KIT
- MODEL:
- SIDEWINDER
- RIDING STYLE:
- STREET
- SPRING LIFT:
- 0,605'
- SPRING LIFT IMPERIAL:
- 0.605'
- SPRING OPEN PRESSURE:
- 376 LB
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- TYPE:
- VALVE
- APPLICATION:
- EXHAUST
MSRP: $395.95Now: $356.36Was: $395.95 -
On Sale
S&S CYCLE GUIDE VALVE C.I. 84- 90-2210
S&S CYCLE
MSRP: $58.95Now: $53.06Was: $58.95Valve guide wear is one of the fastest ways to lose compression and increase blow-by in your Harley engine—and once they're shot, no amount of tuning will bring back the performance you've lost. The...09262893- SKU:
- 09262893
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
MSRP: $58.95Now: $53.06Was: $58.95 -
On Sale
S&S CYCLE Valve Guide - +.001" 90-2211
S&S CYCLE
MSRP: $69.95Now: $62.96Was: $69.95Precision valve guides are fundamental to cylinder head integrity and engine longevity—especially in high-performance or frequently rebuilt applications. This S&S Cycle casting maintains critical...09262894- SKU:
- 09262894
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- VALVE GUIDE
- UNITS:
- EACH
- OVERBORE IMPERIAL:
- OVERSIZE (+0.001')
MSRP: $69.95Now: $62.96Was: $69.95Qty in Cart: 0Quantity:Price:MSRP: $69.95Now: $62.96Was: $69.95Subtotal: -
On Sale
S&S CYCLE Valve Guide - +.002" 90-2212
S&S CYCLE
MSRP: $95.95Now: $86.36Was: $95.95Maintaining proper valve guide clearance is critical for engine longevity and consistent performance—oversized guides ensure your cylinder head can handle precision boring and honing without material...09262921- SKU:
- 09262921
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- OVERBORE IMPERIAL:
- OVERSIZE (+0.002')
- PRODUCT NAME:
- VALVE GUIDE
- UNITS:
- EACH
- RIDING STYLE:
- STREET
MSRP: $95.95Now: $86.36Was: $95.95 -
On Sale
S&S CYCLE Springs - .585" - Twin Cam 900-0594
S&S CYCLE
MSRP: $183.95Now: $165.56Was: $183.95High-lift camshaft builds demand valve springs engineered to prevent float and maintain consistent lift across the entire RPM range. The S&S CYCLE dual-spring kit delivers the controlled pressure you...09262723- SKU:
- 09262723
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- APPLICATION:
- EXHAUST
- RIDING STYLE:
- STREET
- SPRING LIFT:
- 0,585'
- SPRING OPEN PRESSURE:
- 325 LB
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- SPRING KIT
- TYPE:
- VALVE
- MATERIAL:
- STEEL
- SPRING LIFT IMPERIAL:
- 0.585'
- UNITS:
- KIT
MSRP: $183.95Now: $165.56Was: $183.95 -
On Sale
S&S CYCLE Spring Kit - .650" 900-0050
S&S CYCLE
MSRP: $254.95Now: $229.46Was: $254.95If you're building a high-revving naturally aspirated engine, valve spring performance directly impacts reliability and peak horsepower. The S&S Cycle Spring Kit is engineered to safely support .650"...09262056- SKU:
- 09262056
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- MODEL:
- SIDEWINDER
- SPRING SEAT PRESSURE:
- 178 LB
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- STREET
- SPRING LIFT:
- 0,650'
- SPRING LIFT IMPERIAL:
- 0.650'
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- SPRING OPEN PRESSURE:
- 376 LB
- TYPE:
- VALVE
MSRP: $254.95Now: $229.46Was: $254.95 -
On Sale
S&S CYCLE Valve Springs - .650" - Twin Cam 106-5909
S&S CYCLE
MSRP: $257.95Now: $232.16Was: $257.95If you're building a high-lift Twin Cam engine and need valve springs that can handle aggressive cam profiles without sacrificing reliability, S&S Cycle's .650" valve springs are engineered for the...09262069- SKU:
- 09262069
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- SPRING LIFT:
- 0,650'
- UNITS:
- KIT
- MODEL:
- SIDEWINDER
- SPRING OPEN PRESSURE:
- 376 LB
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SPRING KIT
- SPRING SEAT PRESSURE:
- 178 LB
- TYPE:
- VALVE
- APPLICATION:
- INTAKE
- RIDING STYLE:
- STREET
- SPRING LIFT IMPERIAL:
- 0.650'
MSRP: $257.95Now: $232.16Was: $257.95 -
On Sale
S&S CYCLE Cam - 465G - M8 310-1001A
S&S CYCLE
MSRP: $1,924.95Now: $1,732.46Was: $1,924.95If you're running an M8 in a touring application, weak oil management will cost you reliability and power. The S&S Cycle Cam 465G delivers the scavenging capacity and debris protection your engine...09251299- SKU:
- 09251299
- Availability:
- Ships Same Business Day
- Weight:
- 12.25 LBS
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- FEATURES:
- WATER COOLED
- GRIND:
- 465G
- PRODUCT NAME:
- CAMCHEST KIT
- TYPE:
- GEAR
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 - 475G - M8 310-1002A
S&S CYCLE
MSRP: $1,924.95Now: $1,732.46Was: $1,924.95If you're pushing your M8 to higher RPMs and demand precision valve timing without the slop of a stock chain drive, the S&S Cycle 475G cam kit eliminates timing chain lash and enables higher cam...09251300- SKU:
- 09251300
- Availability:
- Ships Same Business Day
- Weight:
- 12.25 LBS
- GRIND:
- 475G
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- FEATURES:
- WATER COOLED
- PRODUCT NAME:
- CAMCHEST KIT
- TYPE:
- GEAR
- UNITS:
- KIT
MSRP: $1,924.95Now: $1,732.46Was: $1,924.95 -
On Sale
S&S CYCLE Cam - 465G - M8 310-1005A
S&S CYCLE
MSRP: $1,924.95Now: $1,732.46Was: $1,924.95If you're running an M8 in a touring application, cam quality directly impacts throttle response, reliability, and how your engine performs across the RPM range. The S&S Cycle 465G is purpose-built...09251303- SKU:
- 09251303
- Availability:
- Ships Same Business Day
- Weight:
- 12.05 LBS
- RIDING STYLE:
- STREET
- FEATURES:
- OIL COOLED
- UNITS:
- KIT
- COLOR/FINISH:
- CHROME
- GRIND:
- 465G
- PRODUCT NAME:
- CAMCHEST KIT
- TYPE:
- GEAR
MSRP: $1,924.95Now: $1,732.46Was: $1,924.95 -
On Sale
S&S CYCLE Cam - 475G - M8 310-1006A
S&S CYCLE
MSRP: $1,924.95Now: $1,732.46Was: $1,924.95If you're serious about maximizing cam lift and eliminating timing chain slop, a gear drive conversion delivers the precision and clearance you need. By reversing rear cam rotation and removing chain...09251304- SKU:
- 09251304
- Availability:
- Ships Same Business Day
- Weight:
- 12.30 LBS
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- PRODUCT NAME:
- CAMCHEST KIT
- GRIND:
- 475G
- TYPE:
- GEAR
- COLOR/FINISH:
- CHROME
- FEATURES:
- OIL COOLED
MSRP: $1,924.95Now: $1,732.46Was: $1,924.95 -
On Sale
S&S CYCLE Cam - 465G - M8 310-1009A
S&S CYCLE
MSRP: $1,924.95Now: $1,732.46Was: $1,924.95The S&S Cycle 465G cam delivers the torque characteristics touring riders demand without sacrificing reliability or rideability. Built from billet aluminum with enhanced materials and precision...09251307- SKU:
- 09251307
- Availability:
- Ships Same Business Day
- Weight:
- 12.45 LBS
- COLOR/FINISH:
- GLOSS
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- TYPE:
- GEAR
- COLOR/FINISH:
- BLACK
- FEATURES:
- WATER COOLED
- GRIND:
- 465G
- PRODUCT NAME:
- CAMCHEST KIT
MSRP: $1,924.95Now: $1,732.46Was: $1,924.95 -
On Sale
S&S CYCLE Cam - 475G - M8 310-1010A
S&S CYCLE
MSRP: $1,924.95Now: $1,732.46Was: $1,924.95If you're running an M8 Harley and serious about maximizing valve lift and timing precision, a gear drive cam conversion eliminates the slop inherent in stock chain drives—giving you tighter valve...09251308- SKU:
- 09251308
- Availability:
- Ships Same Business Day
- Weight:
- 12.35 LBS
- COLOR/FINISH:
- BLACK
- FEATURES:
- WATER COOLED
- PRODUCT NAME:
- CAMCHEST KIT
- TYPE:
- GEAR
- UNITS:
- KIT
- COLOR/FINISH:
- GLOSS
- RIDING STYLE:
- STREET
- GRIND:
- 475G
MSRP: $1,924.95Now: $1,732.46Was: $1,924.95 -
On Sale
S&S CYCLE Cam Chest Kit - 465 Series - Gear Drive - Oil Cooled - M8 310-1013A
S&S CYCLE
MSRP: $1,924.95Now: $1,732.46Was: $1,924.95If you're running a big-bore Harley-Davidson M8 and want reliable cam timing without the wear and failure modes of a stock chain tensioner, the S&S 465 Gear Drive Kit delivers the precision and...09251311- SKU:
- 09251311
- Availability:
- Ships Same Business Day
- Weight:
- 12.50 LBS
- COLOR/FINISH:
- BLACK
- GRIND:
- 465G
- PRODUCT NAME:
- CAMCHEST KIT
- TYPE:
- GEAR
- FEATURES:
- OIL COOLED
- COLOR/FINISH:
- GLOSS
- RIDING STYLE:
- STREET
- UNITS:
- KIT
MSRP: $1,924.95Now: $1,732.46Was: $1,924.95Qty in Cart: 0Quantity:Price:MSRP: $1,924.95Now: $1,732.46Was: $1,924.95Subtotal:
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.
