ENGINE AND COMPONENETS

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

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

Installation is a snap! just remove the four OEM screws and bolt on the new cover with them Smooth die-cast chrome cover replaces the OEM black pl...

  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 ...

Dynojet Thunderslide Kits Excellent performance upgrade Designed for engines with stock or aftermarket air filter and exhaust system Revolutionary...

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 ...

Performance compensator replacement spring. Thicker, stronger and an increased bevel over stock. Features a steeper bevel that provides more preloa...

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

The Man O' War motorsprocket is the 1st performance engineered primary motor sprocket that replaces the OEM Compensator on ‘17- present Milwaukee 8...

FEULING HIGH LOAD premium performance BEEHIVE valve springs handle up to 750 lift camshafts on Twin Cam, Evo and XL. Up to 565 lift on M8 models wi...

FEULING ENDURANCE BEEHIVE valve springs are a direct bolt in replacement up to 650 lift (Twin cam/Evo/XL) and 565 lift (M8) camshafts no spring sea...

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

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®...

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® ...