S&S Cycle

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

Big Bore Kit: 107" to 124" Big Boar Kit Winkle Black Finish without Highlighting Bolt on kit. No case machining required 4.250" bore Forged Pistons...

Kits include all required bearings, O-rings, and hardware Bolt-in compatible with all stock valve train components Provides increased torque and ho...

Precision Machined from Billet Aluminum Blue Anodized Finish Passage Plugs Removable for servicing Independent Scavenge Sections for Flywheel Cavit...

Muffler bodies measure a full 4-1/2" outer diameter Unique louvered baffle delivers a more aggressive tone, even with stock head pipes S&S rac...

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

  Converts stock hydraulic lifters to adjustable solids Kit includes four nonadjustable steel pushrods, four adjustable inserts and instructions ...

Replacement Twin Cam "A" engine cases for stock H-D chassis only (carb and EFI) Feature greater overall strength than stock crankcases Strong, depe...

Bolt-in cam for 103” Twin Cam motors Use with stock heads and low restriction intake and exhaust Broad torque curve improves output over stock over...

Bolt-in cam for 103” and 106” Big Bore Twin Cam motors Use with stock heads (up to 10.2 compression) and low restriction intake and exhaust Great f...

Used to install S&S® oil pumps on early motor cases Made in the U.S.A.

Camshaft gear drive kits increase valve timing accuracy by eliminating timing chain lash and loosely-fit stock chain drive Reverses the rear cam's ...

Original equipment specifications Bolt-in cam with stock cam timing Does not require tuning Made in the U.S.A.

Precision Machined from Billet Aluminum Blue Anodized Finish Passage Plugs Removable for servicing Independent Scavenge Sections for Flywheel Cavit...

Parts are proven to work well together therefore no guesswork Saves money by buying as a package Include bolt-in cams, premium tappets and Quickee...

Big Bore Kit: Bolt on kit. No case machining required 4.250" bore Forged pistons 11.1: compression ratio Oil Pump/Cam Plate Precision machined from...

Big Bore Kit: Bolt on kit. No case machining required 4.250" bore Forged pistons 11.1: compression ratio Oil Pump/Cam Plate Precision machined from...

S&S heads are available to be used with stock-style flat-top pistons Kits are fully assembled, and include stainless steel valves and high-lif...

For jetting most stock and performance engines Made in the U.S.A.

Camshaft gear drive kits increase valve timing accuracy by eliminating timing chain lash and loosely-fit stock chain drive Reverses the rear cam's ...

Head gaskets are made from aramid fiber-reinforced premium graphite material with a steel core, stainless steel fire ring and anti-stick coating Ma...

Original equipment specifications Bolt-in cam with stock cam timing Does not require tuning Made in the U.S.A.

Increases horsepower and torque across the rpm range using air column inertia and carefully timed gas dynamic pressure waves High flow washable and...

High-powered cam for modified engines, increased compression, high-lift springs, adjustable pushrods and large bore throttle body required For best...

Mk45 4.5" Touring Mufflers are the result of decades of riding, racing and tuning Combines both a stainless steel baffle and RaceTEX cartridge pa...

Mk45 4.5" Touring Mufflers are the result of decades of riding, racing and tuning Combines both a stainless steel baffle and RaceTEX cartridge pack...

Race inspired Grand National endcap High flowing baffle design Aggressive sound and excellent horsepower Removable dB reducer Made in USA!

Hardened steel construction for strength and durability Individual weights can be adjusted from 87g bare to 109g fully loaded to increments of 1.4...

Bolt-in cams for 88 CID engines with stock compression ration Great low and mid-range torque Lower lift allows them to be bolted into stock 96”-106...

Cast aluminum construction For V-Series Stock and Super Stock® crankcases with 0.250" offset cam chests

Designed to fit L81-99 S&S® flywheels Made in the U.S.A.

Designed for Harley-Davidson® Big Twin 5-speed transmission models OE or better quality

Strongest from 3000-6000 rpm High-lift springs and adjustable pushrods required

Strongest from 3000-6000 rpm High-lift springs and adjustable pushrods required

Strongest from 3000-6000 rpm High-lift springs and adjustable pushrods required

Designed for Tri-Glides and other heavy bikes needing good bottom and mid-range performance Bolt-in design

Fuel and ignition systems not included, use your carburetor, air cleaner, and aftermarket ignition Specially machined cylinder heads allow use of ...

Large displacement, high flowing S&S heads, and gear driven 640 cam result in large horsepower increase over stock engine 124 cubic inch displa...

Replacement Twin Cam "A" engine cases for stock H-D chassis only (carb and EFI) Feature greater overall strength than stock crankcases Strong, depe...

New-style breather is not dependent on the rotation of the crankshaft to make it open and close. Instead, reeds open when pressure in the crankcase...

Cast from A356 T-6 heat-treated aluminum alloy Include crankcase bolts, washers and nuts, cylinder mounting studs, timing hole plug, magnetic drai...

Solves the problem of oil carryover in Twin Cam "A" motors with stock oil pump Oil carryover is oil that comes out of your breather and all over yo...

Stock or 4-1/8" bore crankcases to be used as a foundation for a custom engine or replacement for T111, T124, or T143 Stock looking, but stronger;...

Stock or 4-1/8" bore crankcases to be used as a foundation for a custom engine or replacement for T111, T124, or T143 Stock looking, but stronger; ...

Cam chest is moved outward .250" to allow crankcases to handle large cylinder bore sizes Relocated cam chest oil pick-up increases gear case scaven...