ENGINE AND COMPONENETS

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...

A time-proven system, the Trask Mystfree Breather Kit is a Twin-Cam necessity designed to drain oil more efficiently into the rocker, resulting in...

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...

TWIN POWER 55MM ALUMINUM HIGH FLOW INTAKE MANIFOLD 2017+ M8 The Twin Power® 55mm Aluminum High-Flow Intake Manifold replaces the stock plastic unit...

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

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...

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...

F35A Milwaukee 8 Cam .572 ​ New design with high lift and short duration Performs like the famous 30/30 but has .087 more lift. 2300 to 6500 ...

FEULING RACE SERIES OIL PUMP (CENTER/WATER COOLED M8) FEULING WATER COOLED high volume billet oil pumps are a must have for the Milwaukee Eight eng...

FEULING RACE SERIES OIL PUMP (OIL COOLED M8) FEULING OIL COOLED high volume billet oil pumps are a must have for the Milwaukee Eight engine. The in...

FEULING HP+ OIL PUMP (CENTER/WATER COOLED M8) FEULING WATER COOLED high volume billet oil pumps are a must have for the Milwaukee Eight engine. The...

FEULING HP+ OIL PUMP (OIL COOLED M8) FEULING OIL COOLED high volume billet oil pumps are a must have for the Milwaukee Eight engine. The increased ...

FEULING RACE SERIES CAM PLATE (M8 CHAIN OR GEAR DRIVE) Increase engine oil flow and volume by enlarging the oil pump reservoirs and critical oil pa...

FEULING RACE SERIES OILING SYSTEM (WATER COOLED M8) Quieter and smoother engine operation Increase oil pressure, scavenge volume and engine oil fl...

FEULING RACE SERIES OILING SYSTEM (OIL COOLED M8) Quieter and smoother engine operation 27% more pressure and scavenge gear volume over stock 42% ...

FEULING  HP+ OILING SYSTEM (WATER COOLED M8) 30% more pressure gear volume over stock 53% more scavenge gear volume over stock 42% more scavenge v...

FEULING  HP+ OILING SYSTEM (OIL COOLED M8) Quieter and smoother engine operation 27% more pressure and scavenge gear volume over stock 42% more sc...

FEULING 630 CONVERSION STYLE CAMSHAFTS ('99-'06 TWIN CAM) 630 CAMS - Vicious power gains, wide streetable power band from a high lift profile camsh...

FEULING 594 CONVERSION STYLE CAMSHAFTS ('99-'06 TWIN CAM) 594 CAMS - Fierce performing camshaft for an array of engines sizes, large displacement e...

FEULING 630 CHAIN DRIVE CAMSHAFTS ('99-'06 TWIN CAM) 630 CAMS - Vicious power gains, wide streetable power band from a high lift profile camshaft f...

FEULING 594 CHAIN DRIVE CAMSHAFTS ('99-'06 TWIN CAM) 594 CAMS - Fierce performing camshaft for an array of engines sizes, large displacement engine...

FEULING 574 CHAIN DRIVE CAMSHAFTS ('99-'06 TWIN CAM) 574 CAMS - Wicked power band for modified engines and an excellent bolt in for 95"+ engines. T...

FEULING 525 CHAIN DRIVE CAMSHAFTS ('99-'06 TWIN CAM) 525 CAMS - A real workhorse, designed to increase torque band width and increase fuel economy....

FEULING 574 CONVERSION STYLE CAMSHAFTS ('99-'06 TWIN CAM) 574 CAMS - Wicked power band for modified engines and an excellent bolt in for 95"+ engin...

FEULING 543 CONVERSION STYLE CAMSHAFTS ('99-'06 TWIN CAM) 543 CAMS - The Freeway Flyer, a great camshaft for those who want more top end power than...

FEULING 525 CONVERSION STYLE CAMSHAFTS ('99-'06 TWIN CAM) BIGGEST CAMSHAFTS FOR '99-'04 ENGINES (WILL ALSO FIT '05-'06) 525 CAMS - A real workhorse...

FEULING HYDRAULIC TENSIONERS CONVERSION KITS Kit includes the needed components to upgrade early 99-06 style mechanical spring tensioner cam chain ...

FEULING 630 CHAIN DRIVE CAMSHAFTS ('06+TWIN CAM) 630 CAMS - Vicious power gains, wide streetable power band from a high lift profile camshaft for h...

FEULING 594 CHAIN DRIVE CAMSHAFTS ('06+TWIN CAM) 594 CAMS - Fierce performing camshaft for an array of engines sizes, large displacement 103, 110 &...

FEULING 472 CHAIN DRIVE CAMSHAFT ('17+M8) Now 50 State legal / CARB compliant!  CARB EO# D-881-1 472 CAM - The 472 Reaper is a great all-around cam...

FEULING 508 CHAIN DRIVE CAMSHAFT ('17+M8) 508 CAM - The Grim Reaper Aggressive pulling power with a nasty sound. This camshaft revs up faster than ...

FEULING 521 CHAIN DRIVE CAMSHAFT ('17+M8) 521 CAM - Aggressive pulling power with a nasty sound, the REAPER 521 grind will shine in 114 and larger ...

FEULING 465 CHAIN DRIVE CAMSHAFT ('17+M8) Now 50 State legal / CARB compliant!  CARB EO# D-881-1 465 CAM - The 465 Reaper is an accelerator, produc...

FEULING 405 CHAIN DRIVE CAMSHAFT ('17+M8) Now 50 State legal / CARB compliant!  CARB EO# D-881-1 405 CAM - A workhorse, producing a wide powerband ...