Best selling products

S&S CV (SPIGOT) STYLE MANIFOLDS For use with spigot style carburetors 40mm-48mm (Harley CV, Mikuni HSR, etc.) For use with stock or S&S he...

S&S Cycle - PROVEN Performance Stealth series air cleaners are one of the best air cleaners on the market for performance and stock application...

S&S QUICKEE PUSHRODS Kits include four S&S Quickee pushrods, four pushrod covers & gaskets! (Evolution & Shovel head kits do not i...

S&S PISTON COOLING JETS (M8 & TWIN CAM) M8 Piston cooling jets Crafted from strong, billet 6061 T6 aluminium Patent pending dual spray tec...

S&S CHAIN DRIVE 475C CAM CHEST KIT 17'-LATER M8 MODELS- BLACK, OIL COOLED Excellent all around power and torque cam! Good application for rider...

S&S CHAIN DRIVE 475C CAM CHEST KIT 17'-LATER M8 MODELS- CHROME, OIL COOLED Excellent all around power and torque cam! Good application for ride...

Factory tappet guides are constructed of plastic and are at risk for allowing the tappets to twist under heavy stress. S&S Tappet Cuffs capture...

S&S 475C CHAIN DRIVE CAMSHAFT KIT- '17+ M8 Models Excellent all around power and torque cam! Good application for riders looking to increase po...

The crew here at S&S Cycle have been working on our new Billet Head Breathers, crafted from premium 6061 aluminum and anodized in the iconic S&...

Introducing the next evolution in performance for your primary drive: the S&S Cycle Heavy Duty Compensator Ramp for Harley-Davidson® M8 models!...

The factory oil control valve on all oil cooled M8 engines regulates the amount of oil flowing to the oil cooler/heads. The stock assembly includes...

S&S Cycle has upped our intake game with a new M8 manifold and leveraged a 5-Axis CNC machining center for the ultimate in consistent shape and...

S&S CAM CHAIN TENSIONERS (M8 & TWIN CAM) Thicker shoe for longer wear Direct chain oiling Larger piston Tighter tolerance for improved sta...

S&S SIDEWINDER .650" LIFT VALVE SPRINGS For valve lift to .650” with 1.860”/​178 lb. installed height, 376 lb. at max lift High Performance co...

S&S V111 engines     Perfect for applications that require great horsepower and torque, but not at the expense of dependability, fuel mileage...

The 110" Power Package is the ideal combination of performance and savings to transform your Twin Cam HD without breaking the bank. Bump the early...

The flywheels are the heart of any performance engine and S&S Cycle has been perfecting the art for over six decades. Stronger, more durable, a...

S&S has been building big bore kits since the 60s and has it down to an absolute science. Our latest efforts are aimed at the Milwaukee Eight® ...

S&S T124 ENGINES (LOW COMPRESSION) The ultimate power producing and reliable drop in engine available! Great option for sport touring riding...

S&S T111 ENGINES    The ultimate sport & touring drop in engine available. Perfect choice for a rider looking for plenty of passing ...

  Big Bore Kit: 107" to 124" Big Bore Kit Winkle Black Finish with Fin Highlighting Bolt-on kit. No case machining required 4.250" bore Forged Pis...

S&S CHAIN DRIVE 475C CAM CHEST KIT 17'-LATER M8 MODELS- BLACK, WATER COOLED Excellent all around power and torque cam! Good application for rid...

S&S GEAR DRIVE 475G CAM CHEST KIT 17'-LATER M8 MODELS- CHROME, OIL COOLED Excellent all around power and torque cam! Good application for rider...

S&S GEAR DRIVE 475G CAM CHEST KIT 17'-LATER M8 MODELS- BLACK, OIL COOLED Excellent all around power and torque cam! Good application for riders...

S&S 550G GEAR DRIVE CAMSHAFT KIT- '17+ M8 Models High lift cam for maximizing peak torque and horsepower! Designed to make higher RPM power in ...

S&S HIGH-PERFORMANCE TAPPETS   A must when doing any performance cam upgrade Rollers have a larger-than-stock inner bearing race that reduces ...

S&S PRECISION HIGH-PERFORMANCE TAPPETS A must when doing any performance cam upgrade Rollers have a larger-than-stock inner bearing race that ...

S&S cam support plates are just what the doctor ordered when repairing a damaged engine or installing new camshafts. CNC machined from forged a...

The S&S® TC3 oil pumps and cam support plates, Twin Cam HD® big twins, are highly recommended for any cam installation, but they are a must if ...

The S&S® TC3 oil pumps and cam support plates, Twin Cam HD® big twins, are highly recommended for any cam installation, but they are a must if ...

The 100" Power Package is the ideal combination of performance and savings to transform your Twin Cam HD without breaking the bank. Bump the early...

S&S Cycle - PROVEN Performance Fit the S&S Stealth air cleaner kits Domed-style air cleaner covers are machined from billet aluminum, fit ...

Race only 136" engine specs: Cylinder Heads High-flow cylinder heads with premium seats, guides, valves, springs, and seals +1mm oversized intake...

S&S has been building big bore kits since the 60s and has it down to an absolute science. Our latest efforts are aimed at the Milwaukee Eight®...

S&S cycle now offers high performance engine cases for the Milwaukee-8 engine for FLH/FLT Touring. These heavy duty cases provide the ultimate ...

114/117" to 132" Big Bore Kit: Wrinkle Black or Black Granite Finish Available With or Without Fin Highlighting for Wrinkle Black Bolt-On Ki...

107" to 129" Big Bore Kit: Available With or Without Fin Highlighting Bolt-On Kit — No Case Machining Required 4.320" Bore Forged Pistons 11.1...

S&S OIL PUMPS M8 Water cooled model pump features 20% flow increase on supply side and 52% flow increase on scavenge Oil cooled pump feature...

S&S CAM PLATE M8 Precision Machined from Billet Aluminum Blue Anodized Finish Passage Plugs are removeable for Servicing Made in USA Fitment ...

S&S 590C CHAIN DRIVE CAMSHAFT KIT- '17+ M8 Models The 590C cam was designed as an all out Horsepower Cam for 124 and larger engines. Big lift l...

S&S 590G GEAR DRIVE CAMSHAFT KIT- '17+ M8 Models The 590G cam was designed as an all out Horsepower Cam for 124 and larger engines. Big lift le...

S&S V80 ENGINE    Excellent choice for states with someone who wants a cost effective performance engine! Have an old Evo that is cracked or n...

S&S V80R ENGINE    Excellent choice for states with someone who wants a street legal and emissions legal performance engine!  We've been ins...

S&S V96R ENGINE    Excellent choice for states with someone who wants a street legal and emissions legal performance engine!  We've been ins...

S&S TOP MOTOR MOUNT FOR T143 ENGINES Specifically made for  '08 & '09-'16 Touring models to install the S&S T143 engine Includes ness...

S&S T143 ENGINES The ultimate power producing and reliable drop in engine available! The biggest and baddest engine S&S offers. Features...

S&S T124 ENGINES (HIGH COMPRESSION) The ultimate power producing and reliable drop in engine available! This engine features high compressio...

Required install kit for '07-'16 Touring models using a T-series engine or Super Stock engine cases Includes formed oil line adapter, oil lines, f...