ENGINE AND COMPONENETS

2 Great tensioner options from Feuling for your 17-25 M8! Option 1: Billet cam chain tensioner assembly for M-Eight engines. Replaces the factory c...

PUSHROD TUBE HOLDER Makes for easy adjustment of adjustable pushrods, holding pushrod tubes up and out of the way Fits M8, Twin cam, Evolution big...

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...

Designed for use in custom applications where a Twin Cam motor and crank sensor are used. Does not use a MAP or Cam position sensor. Complete igni...

Let that CVO breathe! The S&S Stealth system is now available for 2023-2024 CVO models, and it comes paired with our Lava Chrome teardrop to ma...

Star Racing M8 PSI valve spring kit 640 lift PSI Valve Springs up to 640 Lift JHE Titanium Retainers exclusive to this new spring design Trend Bil...

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 INTAKE MANIFOLD FLANGES For use on S&S manifolds only Fits '84-'06 Big twins (Except '06 Dyna) & '86-'03 Sportsters Seals sold se...

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...

Replace stock front engine bracket with custom slotted bracket with alignment lines Allows the rider to dial in the engine to perfect alignment Sl...

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

The proven performance of an S&S cam chest kit without thecams, allowing you freedom of choice in cam profiles Kit oil pump and cam plate are ...

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...

FEULING HYDRAULIC TENSIONERS AND REPLACEMENT PADS FEULING stock replacement hydraulic cam chain tensioners - MADE IN AMERICA. Tensioner housings ar...

FEULING 543 CHAIN DRIVE CAMSHAFTS ('06+TWIN CAM) 543 CAMS - The Freeway Flyer, a great camshaft for those who want more top end power than our 525 ...

FEULING 538 CHAIN DRIVE CAMSHAFT ('17+M8) 538 CAM - Aggressive camshaft with a nasty sound. This camshaft revs up fast and pulls hard in engines wi...

FEULING 592 CHAIN DRIVE CAMSHAFT ('17+M8) 592 CAM - The BIG NASTY Put your big boy pants on get serious with bore size, ported cylinder heads/intak...

TAPPET/LIFTER BLOCK ALIGNMENT SCREW Used when installing tappet/lifter blocks to ensure all oil passages and gaskets are perfectly aligned. Fits 7...

RATCHETING CRANK SHAFT ROTATOR WRENCH Use to rotate the crankshaft during engine timing and clearance checks EZ Grip screwdriver-style handle for ...

CRANKSHAFT RUN OUT TOOL Mounts to cam chest side of engine case using designated mounting holes of tool combined with cam-cover bolt holes Makes f...

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...

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...

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

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...

Larger 8.8mm wires Designed for custom applications requiring different than stock lengths Easily cut and crimp on the included terminal connector...

FEULING 472 CHAIN DRIVE CAMSHAFT ('17+M8) 487 CAM - The 487 Reaper CHOP is a great all-around camshaft and Feulings go to for 4 1/2 stroke 114 - 11...

FEULING ECONO performance BEEHIVE valve springs designed to handle up to 585 lift camshafts at an economical price. These FEULING BEEHIVE springs a...

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® ...

3/4 Race Milwaukee 8 Cam .585 Best Seller - Most Lift for Reliable Performance 2300 to 6500 RPM Range .585 Lift, Intake Closes at 42 ABDC ...

FEULING CAM INSTALL KITS (M8 & TWIN CAM) Includes all the gaskets and Timken bearings necessary to install a new cam/cams! Includes ARP cam an...

FEULING HP+ ONE PIECE PUSHRODS (M8)Eliminate pushrod flex, reduce valve-train harmonics and increase valve liftFixed Length 4130 Chrome moly one pi...

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

FEULING 574 CHAIN DRIVE CAMSHAFTS ('06+TWIN CAM) 574 CAMS - Wicked power band for modified engines and an excellent bolt in for stock 96, 103 &...

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 ...

  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 ...