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S&S Cycle - 330-0715 - Camshaft Kit - 540G Gear Drive - M8 Features Designed to add even more torque to your big bore M8, for those that keep the revs below 6000 rpm when combined with 124" and...

S&S Cycle - 330-0713 - Camshaft Kit - 540C Chain Drive - M8 Features Designed to add even more torque to your big bore M8, for those that keep the revs below 6000 rpm when combined with 124" and...

S&S Cycle - 310-1083A - Cam Chest Kit with Plate - Gear Drive - Oil Cooled - 550 Cam - Chrome Pushrods - M8FeaturesAll parts in each kit are matched to ensure superior quality, fit, finish and...

S&S Cycle - 330-0647 - Camshaft Kit - 550G Gear Drive - M8 Features Kit includes all required bearings, o-rings, and hardware Ideal horsepower cam for 114" and larger engines Maximizes peak...

S&S Cycle - 31-0078 - Engine Case - Super Stock® Big Bore - 3.625" - Evolution Big TwinFeatures3.625" big bore cylinder case for any stroke up to and including 5" and most stock length connecting...

S&S Cycle - 31-2100 - REED VALVE, 84-99 +.030FeaturesNew-style breather is not dependent on the rotation of the crankshaft to make it open and close. Instead, reeds open when pressure in the...

S&S Cycle - 31-0055 - Engine Case - Super Stock® - 3.500" - Evolution Big TwinFeatures3.5" stock bore cylinder case for any stroke up to and including 5" and most stock length connecting rodsMachined...

S&S Cycle - 31-2096 - REED VALVE, 93-99 STDFeaturesNew-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...

S&S Cycle - 94-9254 - Wrist Pin Circlips - Harley Davidson Features For use with S&S Cycle wrist pins Sold in pack of 4 Specs

S&S Cycle - 940-0060 - Ring SetFeaturesComplete set of piston ringsMade in the U.S.A.SpecsUnits

S&S Cycle - 920-0141 - Big Bore Piston Kit - 124" - +.010 - M8FeaturesPiston kit includes set of pistons, rings, wristpins, and clipCompression ratios listed are approximate and are calculated using...

S&S Cycle - 920-0148 - Big Bore Piston Kit - 131" - +.010 - M8FeaturesPiston kit includes set of pistons, rings, wristpins, and clipCompression ratios listed are approximate and are calculated using...

S&S Cycle - 920-0142 - Big Bore Piston Kit - 128" - +.010 - M8FeaturesPiston kit includes set of pistons, rings, wristpins, and clipCompression ratios listed are approximate and are calculated using...

S&S Cycle - 33-5108 - 640 Cam - EvolutionFeaturesS&S Cams are tested on the dyno, street and track before being offered to the publicWith hundreds of hours of testing on each cam, you know you are...

S&S Cycle - 34-4010 - Rod Bearing - Big Twin 41-99FeaturesHigh-quality OE replacement componentsMade in the U.S.A.Specs

S&S Cycle - 31-4013 - Bearing - LeftFeaturesUsed as OEM replacement components on 84-02 models and for Timken bearing conversions on 03-16 modelsMade in the U.S.A.Replacement Part for OEM Number(s):...

S&S Cycle - 31-4009 - Cam Bearing - Big Twin Features Superior quality OE replacement bearings Made in the U.S.A. Specs

S&S Cycle - 34-4007 - Wrist Pin Bushing - Big Twin Features Meets or exceeds fitment and wearability of OEM bushings Measures 0.767" x 0.895" x 1.077" Made in the U.S.A. Specs

S&S Cycle - 31-4004 - Ride Side Crankcase Bearing Race - Standard - Big TwinFeaturesMade in the U.S.A.SpecsProduc

S&S Cycle - 320-0604 - Flywheel AssemblyFeaturesMade of high-strength forged steel and designed for stock and high-performance custom applicationsSpecial keyed 6  large diameter tapered sprocket...

S&S Cycle - 320-0603 - Flywheel AssemblyFeaturesMade of high-strength forged steel and designed for stock and high-performance custom applicationsSpecial keyed 6  large diameter tapered sprocket...

S&S Cycle - 320-0601 - Flywheel AssemblyFeaturesMade of high-strength forged steel and designed for stock and high-performance custom applicationsSpecial keyed 6  large diameter tapered sprocket...

S&S Cycle - 34-4040 - Race Bearing Set - Big TwinFeaturesUsed to rebuild S&S and stock connecting rodsIncludes hardened steel rod bearing races and bronze wrist pin bushingsRequires finish sizing...

S&S Cycle - 320-0598 - Flywheel AssemblyFeaturesMade of high-strength forged steel and designed for stock and high-performance custom applicationsSpecial keyed 6  large diameter tapered sprocket...

S&S Cycle - 320-0477 - Flywheel - EvolutionFeaturesReplacement Flywheel Assemblies for Twin Cam MotorsS&S 3-piece flywheels with integral main shafts are the strongest yet, made from 4140 steel and...

S&S Cycle - 32-2230 - Flywheel Assembly - Big TwinFeaturesMade of high-strength forged steel and designed for stock and high-performance custom applicationsSpecial keyed 6  large diameter tapered...

S&S Cycle - 34-2103 - Crankpin - Big TwinFeaturesInclude crankpin, nuts and keyMade in the U.S.A.SpecsMa

S&S Cycle - 310-1326 - Crankcase - MK-Series "B" - Black - M8 SoftailFeaturesStock deck heightLarge volume sumpMachined, close-fitting oil scraper (stock is as cast)A solid foundation for building a...

S&S Cycle - 32-2239 - Flywheel Assembly - Big TwinFeaturesMade of high-strength forged steel and designed for stock and high-performance custom applicationsSpecial keyed 6  large diameter tapered...

S&S Cycle - 33-2004 - Motor Sprocket Shaft Assembly - Big TwinFeaturesIncludes tapered shaft, nut and keysFor use with standard diameter bearingMade in the U.S.A.Specs

S&S Cycle - 34-2102 - Crankpin - Big TwinFeaturesInclude crankpin, nuts and keyMade in the U.S.A.SpecsPr

S&S Cycle - 31-0047 - Engine Case - +4.000" Bore - Special Application - Evolution Big TwinFeaturesDesigned for high performance engines with cylinder bores 4.000\Cam chest is moved outward 0.250" to...

Revolution Performance, Llc - RP301-600 - Piston Kit - Flat-Top - For 139" Monster Big Bore Cylinder Kit - 107" M8Featuresrevolution performance logoTop-quality custom-forged piston kits manufactured...

S&S Cycle - 92-20265 - Replacement Pistons with RingsFeaturesS&S heads give great performance, and work with additional upgradesKits are fully assembled, and include stainless steel valves and...

S&S Cycle - 92-2028 - Replacement Pistons with RingsFeaturesS&S heads give great performance, and work with additional upgradesKits are fully assembled, and include stainless steel valves and...

S&S Cycle - 92-2027 - Replacement Pistons with RingsFeaturesS&S heads give great performance, and work with additional upgradesKits are fully assembled, and include stainless steel valves and...

S&S Cycle - 92-2026 - Replacement Pistons with RingsFeaturesS&S heads give great performance, and work with additional upgradesKits are fully assembled, and include stainless steel valves and...

S&S Cycle - 310-1226 - 129" Power Package Engine Performance Kit - Chain Drive - Oil Cooled - Non-Highlighted Fins - M8FeaturesTransform 107" oil-cooled M8 into 129" with no case machining...

S&S Cycle - 31-4104A - Oil Filter - ChromeFeaturesSturdy steel canister houses the finest filtering media and internal components availableCanister is slightly smaller in diameter than stock filters...

S&S Cycle - 31-4105 - Oil Filter Mounting Bracket Kit - PolishedFeaturesNo voids or other casting defects in the material to cause leaksPosition of the filter has been shifted slightly to give...