Complete Engines & Rebuild Kits

Huge Power increase over stock engine124 cubic inch displacement4 1/8" Bore4 5/8" Stroke640 Cam1.671" diameter Crankpin927" WristpinPiston Cooling JetsS&S Forged Pistons10.8:1 CompressionS&S 3 Piece FlywheelHVHP Oil PumpElectric Compression ReleasesS&S...

Super stock heads and crankcaseS&S easy start camsHigh-flow oil pumpForged flattop pistonsIntake system not included; compatible with stock or aftermarket intake systems4-1/8 bore x 4-1/8 stroke9.8:1 compression ratioWrinkle black finishCylinder heads on...

Stock-height basic engine is direct bolt in replacement for aging 80" H-D Evolution enginesDoes not include carb or ignition; use stock or aftermarket carburetor and air cleaner508 camForged rocker arms585 valve springsFlat top cast pistonsS&S standard...

+30% increase in HP and torque over stockShort stroke for less vibration and longer engine lifeShorter than stock engine height for easy installationDoes not include carb or ignition; use stock or aftermarket carburetor and air cleanerHigh volume,...

Stock-height basic engine is direct bolt in replacement for aging 80" H-D Evolution enginesDoes not include carb or ignition; use stock or aftermarket carburetor and air cleaner508 camForged rocker arms585 valve springsFlat top cast pistonsS&S standard...

The S&S Hot Setup kit for Twin Cams allows a Twin Cam owner to convert a stock engine to 124" using the stock crankcasesIncludes S&S 4-1/8" bore pistons, big bore cylinders finished in wrinkle black powder coat, a dynamically balanced 4-5/8" stroke three...

The S&S Hot Setup kit for Twin Cams allows a Twin Cam owner to convert a stock engine to 124" using the stock crankcasesIncludes 4.125" bore cylinders and forged dished pistons, S&S 4.625" stroke flywheel assembly, S&S .640" lift chain-drive Easy Start...

The S&S Hot Setup kit for Twin Cams allows a Twin Cam owner to convert a stock engine to 124" using the stock crankcasesIncludes S&S 4-1/8" bore pistons, big bore cylinders finished in wrinkle black powder coat, a dynamically balanced 4-5/8" stroke three...

The S&S Hot Setup kit for Twin Cams allows a Twin Cam owner to convert a stock engine to 124" using the stock crankcasesIncludes 4.125" bore cylinders and forged dished pistons, S&S 4.625" stroke flywheel assembly, S&S .640" lift chain-drive Easy Start...

Sidewinder Big Bore Stroker KitContains nearly everything needed to take a stock 74" or 80" H-D? Shovelhead engine up to 93" or 96" displacementIncludes 3.625" bore high tensile, cast iron sidewinder cylinders and forged pistons with wrist pin and rings,...

Sidewinder Big Bore Stroker KitContains nearly everything needed to take a stock 74" or 80" H-D? Shovelhead engine up to 93" or 96" displacementIncludes 3.625" bore high tensile, cast iron sidewinder cylinders and forged pistons with wrist pin and rings,...

Sidewinder Big Bore Stroker KitContains nearly everything needed to take a stock 74" or 80" H-D? Shovelhead engine up to 93" or 96" displacementIncludes 3.625" bore high tensile, cast iron sidewinder cylinders and forged pistons with wrist pin and rings,...