Engine

The rocker box bolts and washers are for both heads. Chrome finish Fits: XL 1957-1976

EMD - Ribster Cam Cover - Fits '77-'90 XL Models Features Fits over OEM Cam Cover Held in place with 3 supplied Allen bolts and spacers Can be notched at upper front to make room for your OEM breather Available in Raw or Black Features cast...

EMD - Ribbed Cam Cover - fits '17-Up M8  These Ribbed EMD covers are the real alternative to the cold, rigid and old fashioned “Billet” style. Features: Manufactured in die cast aluminum, CNC milled gasket surface OEM...

S&S CYCLE - 09311208 - 136" Cylinder Kit - 4.625" Stroke - Wrinkle Black w/o Highlighted Fins - M8FeaturesNot Compatible with VVT modelsWorks with stock crankcaseOriginal engine serial numbers are retainedMLS (Multi-Layered Steel) head gasketsRetains...

S&S CYCLE - 09311207 - 132" Cylinder Kit - 4.500" Stroke - Wrinkle Black w/o Highlighted Fins - M8FeaturesNot Compatible with VVT modelsWorks with stock crankcaseOriginal engine serial numbers are retainedMLS (Multi-Layered Steel) head gasketsRetains...

S&S CYCLE - 09311206 - 132" Cylinder Kit - 4.500" Stroke - Wrinkle Black w/Highlighted Fins - M8FeaturesNot Compatible with VVT modelsWorks with stock crankcaseOriginal engine serial numbers are retainedMLS (Multi-Layered Steel) head gasketsRetains stock...

S&S CYCLE - 09311202 - 132" Cylinder Kit - 4.500" Stroke - Black Granite w/Highlighted Fins - M8FeaturesNot Compatible with VVT modelsWorks with stock crankcaseOriginal engine serial numbers are retainedMLS (Multi-Layered Steel) head gasketsRetains stock...

KIBBLEWHITE - 09263467 - Valve Guide Kit - 0.4760" - +0.001" Oversize - M8FeaturesMade from Manganese that can be easily reamed and honed with battery operated or electric drillHigh concentricity tolerances are held to insure geometry between the seat...

KIBBLEWHITE - 09263464 - Valve Guide Kit - 0.5625" - Standard - Buell | Twin Cam | XLFeaturesMade from Manganese that can be easily reamed and honed with battery operated or electric drillHigh concentricity tolerances are held to insure geometry between...

KIBBLEWHITE - 09263461 - Valve Guide Kit - 0.5635" - +0.001" Oversize - Evolution | Twin Cam | XLFeaturesMade from Manganese that can be easily reamed and honed with battery operated or electric drillHigh concentricity tolerances are held to insure...

KIBBLEWHITE - 09263460 - Valve Guide Kit - 0.5625" - Standard - Evolution | Twin Cam | XLFeaturesMade from Manganese that can be easily reamed and honed with battery operated or electric drillHigh concentricity tolerances are held to insure geometry...

S&S CYCLE - 09040168 - 132" Power Pack - 550 Chain Drive - Water Cooled - Black Granite w/Highlight Fins - M8Features550 lift for the ideal combination of horse power and torquePowder coat finish matched to factoryMLS (Multi-Layered Steel) head...

S&S CYCLE - 09040163 - 132" Power Pack - 550 Chain Drive - Oil Cooled - Black w/o Highlight Fins - M8Features550 lift for the ideal combination of horse power and torquePowder coat finish matched to factoryMLS (Multi-Layered Steel) head gasketsIncludes...

S&S CYCLE - 09040160 - 132" Power Pack - 550 Gear Drive - Water Cooled - Black Granite w/Highlight Fins - M8Features550 lift for the ideal combination of horse power and torquePowder coat finish matched to factoryMLS (Multi-Layered Steel) head...

S&S CYCLE - 09040161 - 132" Power Pack - 550 Gear Drive - Water Cooled - Wrinkle Black w/Highlight Fins - M8Features550 lift for the ideal combination of horse power and torquePowder coat finish matched to factoryMLS (Multi-Layered Steel) head...

S&S CYCLE - 09040158 - 129" Power Pack - 550 Gear Drive - Oil Cooled - Wrinkle Black w/Highlight Fins - M8Features550 lift for the ideal combination of horse power and torquePowder coat finish matched to factoryMLS (Multi-Layered Steel) head...

S&S CYCLE - 09040157 - 129" Power Pack - 550 Gear Drive - Oil Cooled - Wrinkle Black w/o Highlight Fins - M8Features550 lift for the ideal combination of horse power and torquePowder coat finish matched to factoryMLS (Multi-Layered Steel) head...

S&S CYCLE - 09040156 - 132" Power Pack - 550 Gear Drive - Oil Cooled - Wrinkle Black w/Highlight Fins - M8Features550 lift for the ideal combination of horse power and torquePowder coat finish matched to factoryMLS (Multi-Layered Steel) head...

S&S CYCLE - 09040154 - 132" Power Pack - 550 Gear Drive - Oil Cooled - Black Granite w/Highlight Fins - M8Features550 lift for the ideal combination of horse power and torquePowder coat finish matched to factoryMLS (Multi-Layered Steel) head...

S&S CYCLE - 09040155 - 132" Power Pack - 550 Gear Drive - Oil Cooled - Black w/o Highlight Fins - M8Features550 lift for the ideal combination of horse power and torquePowder coat finish matched to factoryMLS (Multi-Layered Steel) head gasketsIncludes...

S&S CYCLE - 09040149 - 132" High Compression | 136" Big Bore Kit - 4.320" Bore - Black w/o Highlighted Fins - M8Features132" high compression kit will work on 114"/117" motors with 4-1/2" stroke flywheels onlyTo achieve 136" big bore, S&S flywheel with...

S&S CYCLE - 09040152 - 132" High Compression | 136" Big Bore Kit - 4.320" Bore - Black w/o Highlighted Fins - M8Features132" high compression kit will work on 114"/117" motors with 4-1/2" stroke flywheels onlyTo achieve 136" big bore, S&S flywheel with...

S&S CYCLE - 09040151 - 132" High Compression | 136" Big Bore Kit - 4.320" Bore - Black w/Highlighted Fins - M8Features132" high compression kit will work on 114"/117" motors with 4-1/2" stroke flywheels onlyTo achieve 136" big bore, S&S flywheel with...

S&S CYCLE - 09040148 - 132" High Compression | 136" Big Bore Kit - 4.320" Bore - Black w/Highlighted Fins - M8Features132" high compression kit will work on 114"/117" motors with 4-1/2" stroke flywheels onlyTo achieve 136" big bore, S&S flywheel with...

V-Twin - 49-8555 - WR Lifter SetDescriptionWR Lifter set is the competition "shoe" type lifter. Fits:WR 1941-1973Additional Information UOM1 - SET ManufacturerV-Twin OriginImported

V-Twin - 49-1877 - Side Valve Feed Pump UpgradeDescriptionFeed pump upgrade for cast pump, flat type, as on 80" Side Valve and late G models.Includes rotor with 4 vanes for added oil pressure! Installation will require using muliple gaskets. Each rotor...

V-Twin - 49-1867 - UL Rear Rod OnlyDescriptionUL rear male connecting rod with bushing and race. Fits:UL 1937-1948U 1937-1948Additional Information UOM1 - EA ManufacturerV-Twin OriginImported

V-Twin - 49-1850 - 45 W Top End AssemblyDescription45 W top end assembly is complete with front and rear cylinders, standard fitted pistons with Hastings rings, valves and guides installed with valve spring kit with a zinc valve cover set.*NOTE: Includes...

V-Twin - 49-1679 - 45 inch WR Tappet Block SetDescriptionWR Tappet block set is the flat style type for WR racing applications.This is a 4 piece set. For use with WR cam set. *NOTE: Hardened and fine ground heat treated steel! Fits:WL 1937-1952Additional...

V-Twin - 49-1387 - Knucklehead Rocker Shaft End CapsDescriptionKnucklehead shaft end caps is for the right side of rocker shaft ends.Caps are shaped for the 1936 look. Caps come in a set of four. Fits:EL 1936-1947FL 1936-1947Additional Information UOM4...

V-Twin - 49-1385 - 74 inch UL Front and Rear Cylinder KitDescription74" complete cylinder set includes standard piston set and rings fitted to front and rear cylinder.Order valves springs and covers separately. ...

V-Twin - 49-1350 - Knucklehead Bare Cylinder Head SetDescriptionKnuckle bare cylinder head set is painted black with large port heads. Fits:EL 1940-1947Additional Information UOM1 - SET ManufacturerMotortechnic OriginImported 2025 Catalog Pages515

V-Twin - 49-1341 - Side Valve Oil Pump BodyDescriptionMachined Side Valve oil pump body features a raw cast iron construction.This is a bare cast iron body, order all related parts separately. Fits:G 1937-1973U 1937-1948W 1937-1957Additional Information ...

V-Twin - 49-1337 - 45 inch WR Tappet Assembly SetDescription45" WR tappet assembly set features the competition type lifters that have "shoes" instead of roller needles for following cam.Sold as a set of four. Fits:W 1941-1973Additional Information UOM1...

V-Twin - 49-1111 - Knucklehead Cylinder Head Set AluminumDescriptionAluminum Knucklehead cylinder head set.*NOTE: Heads include feature detailed casting hallmarks, as original. Fits:FL 1941-1947Additional Information UOM1 - SET ManufacturerMotortechnic...

V-Twin - 49-1022 - 1941-1947 Left Side Engine CaseDescriptionLeft side engine case must be fit to original right side, deck height, front and rear motor mount surfaces must be matched. For 74" motors.*NOTE: Finish machining required. Fits:FL...

V-Twin - 49-0909 - Head Set AluminumDescriptionFront and rear aluminum heads for 74" and 80" side valve models. Fits:U 1936-1948Additional Information OEM No.16670-36F UOM2 - SET ManufacturerV-Twin OriginImported 2025 Catalog Pages795

V-Twin - 49-0865 - 45 inch Top End KitDescription45" top end kit includes a 45" valve cover kit, 45" lifter kit, valve spring kit, front and rear 45" cylinder, four Sifton interchangeable intake and exhaust valves, high compression head, gasket kit,...

V-Twin - 49-0810 - Finned Panhead Valve Cover Set PolishedDescriptionFinned Panhead valve cover set features polished finned covers for front and rear on OE stock or custom frames.Finned Pan valve cover is clearaced rear head installation. Suggested to...

V-Twin - 49-0808 - Panhead Rocker Box Cover Set CastDescriptionPanhead rocker box cover set features a cast satin finish. Machined flat on top.*NOTE: "D" rings are not required for installation. Fits:FL 1948-1965Additional Information UOM1 - SET ...