S&S Cycle

Made in the U.S.A.

Include springs, upper and lower collars and keys For valve lift to .650" with 1.860"/178 lbs. installed height, 376 lbs. at max lift Max 6500 rpm ...

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

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

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

Include a 70mm S&S Throttle Hog throttle body and all components needed for installation on the 143" engine S&S Stealth air cleaner include...

Start any engine regardless of displacement or compression ratio with a stock starter Save your starter and battery; tested for 10,000 starts witho...

Start any engine regardless of displacement or compression ratio with a stock starter Save your starter and battery; tested for 10,000 starts witho...

V111 engines are perfect for applications that require great horsepower and torque, but not at the expense of dependability and engine life They ar...

L78-84 Shovelheads use rubber-band-type intake seals 66-E78 Shovelheads use O-ring-type intake seals Compatible with S&S Super E, B and G carbs...

Kits include front and rear cylinders, base nuts, headbolts, base gaskets and head gaskets Made in the U.S.A. 3.625" bore cylinders require crankca...

Machined from solid 6061 billet aluminum Made in the U.S.A.

S&S 3-piece flywheels with integral main shafts are the strongest yet, made from 4140 steel and feature a larger 1.671" crankpin Flywheel assem...

High-quality, heavy-duty rod sets come complete and ready to install Set includes front and rear rods, crankpin and nuts, steel cages and roller be...

Made of high-strength forged steel and designed for stock and high-performance custom applications Special keyed 6° large diameter tapered sprocket...

2:2 Free-flow design equals solid Hp gains Hidden crossover provides performance benefits of 2:1 Full heat shields on both front and rear headers ...

50 State legal, EPA and CARB compliant: EO# K-010-15 Improved power and torque for greater rideability Bold 4.5" billet endcaps with Highlight Mach...

Classic 2:1 styling Fits floorboard and forward controls and fits mid mounts with S&S brake pedal kit (part #560-0259A / 1861-1493 for $162.95)...

Added air filter surface area improves airflow compared to the standard Stealth air cleaner filter; huge improvement compared to the stock air fil...

Race inspired Grand National endcap Removable dB reducer Stainless steel can with exposed tig welds for factory race styling Includes carbon fiber ...

Meets or exceeds fitment and wearability of OEM bushings Measures 0.767" x 0.895" x 1.077" Made in the U.S.A.

Positive O-ring seal ensures leak-free operation Can be installed with the stock engine in the frame in most applications Include rocker boxes, gas...

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

Mid Mount Brake Pedal provides clearance for S&S performance Exhaust with OE Mid mount foot controls Also works with OEM Fat Bob® header for mi...

Made in the U.S.A.

Bolt on big bore kits mean easy installation with no machining and no rebalancing S&S bolt-in cams and premium tappets make the most of the add...

High port flow gives great performance now, and more later when additional upgrades are done Heads are fully assembled with springs and valves Comp...

Made in the U.S.A. Replacement right side crankcase main bearing assemblies

Made in the U.S.A.

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...

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...

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

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

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

Cast from A356 T-6 heat-treated aluminum alloy Machined to accept an oil filter assembly that mounts on the front of stock motor cases All races ar...

Cast from A356 T-6 heat-treated aluminum alloy Machined to accept an oil filter assembly that mounts on the front of stock motor cases All races ar...

Cast from A356 T-6 heat-treated aluminum alloy Machined to accept an oil filter assembly that mounts on the front of stock motor cases All races ar...

Forged pistons for superior strength Modern alloys and piston skirt profiles for low noise and long engine life Piston kits include set of pistons,...

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 gaskets, O-rings and components are made from the highest-quality materials available Rebuild kits are available in master kits, body-o...

Sold as a kit

Sold as a 10 pack

Fits in stock chassis, no cutting or frame modifications necessary S&S B3 cylinder heads CNC-machined with two-bolt exhaust flanges S&S sup...

Up to 17% more horsepower and 9% more torque (when used with Stealth Air Cleaner Kit) Race-inspired design Stainless Steel perforated baffle desig...