PARTS

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...

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 110" 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 Original S&S teardrop air cleaner assemblies Include an S&S cover, backing plate, and high-quality filt...

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...

Allows the installation of T124 Engines in Dyna models due to the engines having external oil lines straight forward and attractive. Allows the in...

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

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 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 85% of the original size Tear Drop air cleaner covers Available in Pow...

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

S&S Cycle - PROVEN Performance Fit the S&S Stealth air cleaner kits Available in Powder-coated Gloss Black and Chrome Air Stream-style is ...

S&S Cycle - PROVEN Performance Four fuel delivery ports for better fuel flow O-ring sealed idle mixture screw Increased airflow for more horse...

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