Engine
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Out of stock
S&S Cycle - 310-1235 - 132" Power Package Engine Performance Kit - Chain Drive - Water Cooled - Highlighted Fins - M8
S&S Cycle
$3,359.95S&S Cycle - 310-1235 - 132" Power Package Engine Performance Kit - Chain Drive - Water Cooled - Highlighted Fins - M8FeaturesTransform the 114" or the 117" water-cooled M8 into 132"Adjustable pressure relief valve can be adjusted with unit installed in...$3,359.95 -
Out of stock
S&S Cycle - 310-1233 - 132" Power Package Engine Performance Kit - Chain Drive - Oil Cooled - Non-Highlighted Fins - M8
S&S Cycle
$3,359.95S&S Cycle - 310-1233 - 132" Power Package Engine Performance Kit - Chain Drive - Oil Cooled - Non-Highlighted Fins - M8FeaturesTransform the 114" or the 117" oil-cooled M8 into 132"Adjustable pressure relief valve can be adjusted with unit installed in...$3,359.95 -
Out of stock
S&S Cycle - 310-1229 - 132" Power Package Engine Performance Kit - Chain Drive - Water Cooled - Highlighted Fins - M8
S&S Cycle
$3,359.95S&S Cycle - 310-1229 - 132" Power Package Engine Performance Kit - Chain Drive - Water Cooled - Highlighted Fins - M8FeaturesTransform the 114" or the 117" water-cooled M8 into 132"Adjustable pressure relief valve can be adjusted with unit installed in...$3,359.95 -
Out of stock
S&S Cycle - 310-1107B - 128" Power Package Engine Performance Kit - Chain Drive
S&S Cycle
MSRP: $3,265.95$3,109.95S&S Cycle - 310-1107B - 128" Power Package Engine Performance Kit - Chain DriveFeaturesBig-bore bolt-on kit increases 114"/117" with 4-1/2" stroke M-Eight with no case machining required4-1/4" bore cylinders with 11:1 forged pistonsS&S oil pump/cam plate...MSRP: $3,265.95$3,109.95 -
Out of stock
S&S Cycle - 310-1101B - 128" Power Package Engine Performance Kit - Chain Drive
S&S Cycle
$3,265.95S&S Cycle - 310-1101B - 128" Power Package Engine Performance Kit - Chain DriveFeaturesBig-bore bolt-on kit increases 114"/117" with 4-1/2" stroke M-Eight with no case machining required4-1/4" bore cylinders with 11:1 forged pistonsS&S oil pump/cam plate...$3,265.95 -
Out of stock
S&S Cycle - 91-7661 - 96" Sidewinder® - 3.625" Big Bore - Stroker Kit - Wrinkle Black - Evolution Big Twin
S&S Cycle
$2,879.95S&S Cycle - 91-7661 - 96" Sidewinder® - 3.625" Big Bore - Stroker Kit - Wrinkle Black - Evolution Big TwinFeaturesKit includes standard flywheel assembly, 3.625" Sidewinder® stroker big bore cylinder, 9.75:1 compression ratio pistons, rings and...$2,879.95 -
Out of stock
S&S Cycle - 91-7660 - 96" Sidewinder® - 3.625" Big Bore - Stroker Kit - Natural - Evolution Big Twin
S&S Cycle
$2,879.95S&S Cycle - 91-7660 - 96" Sidewinder® - 3.625" Big Bore - Stroker Kit - Natural - Evolution Big TwinFeaturesKit includes standard flywheel assembly, 3.625" Sidewinder® stroker big bore cylinder, 9.75:1 compression ratio pistons, rings and gasketsFlywheel...$2,879.95 -
Out of stock
Kb Performance - KB411.010 - Piston Kit - 3.875" +0.010" - 10.5:1 CR - 95" Twin Cam Big Bore
Kb Performance
$293.00Kb Performance - KB411.010 - Piston Kit - 3.875" +0.010" - 10.5:1 CR - 95" Twin Cam Big BoreFeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter fit and longer piston and ring lifeDiamond-machined...$293.00 -
Out of stock
Kb Performance - KB348.STD - Piston Kit - 3.875" Standard - 9.3:1 CR - 95" Twin Cam Big Bore
Kb Performance
$281.29Kb Performance - KB348.STD - Piston Kit - 3.875" Standard - 9.3:1 CR - 95" Twin Cam Big BoreFeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter fit and longer piston and ring lifeDiamond-machined...$281.29 -
Out of stock
Kb Performance - KB411.005 - Piston Kit - 3.875" +0.005" - 10.5:1 CR - 95" Twin Cam Big Bore
Kb Performance
$293.00Kb Performance - KB411.005 - Piston Kit - 3.875" +0.005" - 10.5:1 CR - 95" Twin Cam Big BoreFeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter fit and longer piston and ring lifeDiamond-machined...$293.00 -
Out of stock
Kb Performance - KB305.020 - Piston Kit - Evolution
Kb Performance
$234.43Kb Performance - KB305.020 - Piston Kit - EvolutionFeaturesManufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloyAllow a tighter fit and longer piston and ring lifeDiamond-machined pistons are held to plus or minus one gram...$234.43 -
Out of stock
Kb Performance - KB305.STD - Piston Kit - Evolution
Kb Performance
$234.43Kb Performance - KB305.STD - Piston Kit - EvolutionFeaturesManufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloyAllow a tighter fit and longer piston and ring lifeDiamond-machined pistons are held to plus or minus one gram...$234.43 -
Out of stock
Kb Performance - KB305.010 - Piston Kit - Evolution
Kb Performance
$234.43Kb Performance - KB305.010 - Piston Kit - EvolutionFeaturesManufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloyAllow a tighter fit and longer piston and ring lifeDiamond-machined pistons are held to plus or minus one gram...$234.43 -
Out of stock
Kb Performance - KB305.005 - Piston Kit - Evolution
Kb Performance
$234.43Kb Performance - KB305.005 - Piston Kit - EvolutionFeaturesManufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloyAllow a tighter fit and longer piston and ring lifeDiamond-machined pistons are held to plus or minus one gram...$234.43 -
Out of stock
Kb Performance - KB272.020 - Piston Kit - 3.498" +0.020" - 10.0:1 CR - XL883 to 1200 Conversion
Kb Performance
$234.43Kb Performance - KB272.020 - Piston Kit - 3.498" +0.020" - 10.0:1 CR - XL883 to 1200 ConversionFeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter fit and longer piston and ring lifeDiamond-machined...$234.43 -
Out of stock
Kb Performance - KB272.STD - Piston Kit - 3.498" Standard - 10.0:1 CR - XL883 to 1200 Conversion
Kb Performance
$234.43Kb Performance - KB272.STD - Piston Kit - 3.498" Standard - 10.0:1 CR - XL883 to 1200 ConversionFeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter fit and longer piston and ring...$234.43 -
Out of stock
Kb Performance - KB266.030 - Piston Kit
Kb Performance
$234.43Kb Performance - KB266.030 - Piston KitFeaturesManufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloyAllow a tighter fit and longer piston and ring lifeDiamond-machined pistons are held to plus or minus one gram weight and...$234.43 -
Out of stock
Kb Performance - KB266.040 - Piston Kit
Kb Performance
$234.43Kb Performance - KB266.040 - Piston KitFeaturesManufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloyAllow a tighter fit and longer piston and ring lifeDiamond-machined pistons are held to plus or minus one gram weight and...$234.43 -
Out of stock
Kb Performance - KB266.005 - Piston Kit
Kb Performance
$234.43Kb Performance - KB266.005 - Piston KitFeaturesManufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloyAllow a tighter fit and longer piston and ring lifeDiamond-machined pistons are held to plus or minus one gram weight and...$234.43 -
Out of stock
Kb Performance - KB266.020 - Piston Kit
Kb Performance
$234.43Kb Performance - KB266.020 - Piston KitFeaturesManufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloyAllow a tighter fit and longer piston and ring lifeDiamond-machined pistons are held to plus or minus one gram weight and...$234.43 -
Out of stock
Kb Performance - KB266.010 - Piston Kit
Kb Performance
$234.43Kb Performance - KB266.010 - Piston KitFeaturesManufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloyAllow a tighter fit and longer piston and ring lifeDiamond-machined pistons are held to plus or minus one gram weight and...$234.43 -
Out of stock
Kb Performance - KB258.010 - Piston Kit
Kb Performance
$222.43Kb Performance - KB258.010 - Piston KitFeaturesManufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloyAllow a tighter fit and longer piston and ring lifeDiamond-machined pistons are held to plus or minus one gram weight and...$222.43 -
Out of stock
Kb Performance - KB266.STD - Piston Kit
Kb Performance
$234.43Kb Performance - KB266.STD - Piston KitFeaturesManufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloyAllow a tighter fit and longer piston and ring lifeDiamond-machined pistons are held to plus or minus one gram weight and...$234.43 -
Out of stock
Kb Performance - KB258.005 - Piston Kit
Kb Performance
$222.43Kb Performance - KB258.005 - Piston KitFeaturesManufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloyAllow a tighter fit and longer piston and ring lifeDiamond-machined pistons are held to plus or minus one gram weight and...$222.43 -
Out of stock
Kb Performance - KB295.STD - Piston Kit - 3.498" Standard - 9.0:1 CR - XL1200
Kb Performance
$216.29Kb Performance - KB295.STD - Piston Kit - 3.498" Standard - 9.0:1 CR - XL1200FeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter fit and longer piston and ring lifeDiamond-machined pistons are held...$216.29 -
Out of stock
Kb Performance - KB295.020 - Piston Kit - 3.498" +0.020" - 9.0:1 CR - XL1200
Kb Performance
$216.29Kb Performance - KB295.020 - Piston Kit - 3.498" +0.020" - 9.0:1 CR - XL1200FeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter fit and longer piston and ring lifeDiamond-machined pistons are held...$216.29 -
Out of stock
Kb Performance - KB295.005 - Piston Kit - 3.498" +0.005" - 9.0:1 CR - XL1200
Kb Performance
$216.29Kb Performance - KB295.005 - Piston Kit - 3.498" +0.005" - 9.0:1 CR - XL1200FeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter fit and longer piston and ring lifeDiamond-machined pistons are held...$216.29 -
Out of stock
Kuryakyn - KUR8136 - Oil Pressure Sending Unit Cover - 80" Evo Big Twin
Kuryakyn
$44.99Kuryakyn - KUR8136 - Oil Pressure Sending Unit Cover - 80" Evo Big TwinFeaturesHigh-quality, chromed, die-cast coverRequires the sending unit to be removed for installationFor single-terminal gauge-style sending unitsIncludes an upper and lower cover for...$44.99 -
Out of stock
Kibblewhite - 41007-4 - Rocker Stud Nut - M8
Kibblewhite
$24.05Kibblewhite - 41007-4 - Rocker Stud Nut - M8 Features Replacement nuts (5/16" - 24) for Kibblewhite Rocker Arm Shaft Stud and Nut Kit Specs Color/Finish Black Oxide Material Steel Nut Type Flange Product Name Rocker Arm...$24.05 -
Out of stock
Kibblewhite - 20-23950 - Beehive Shim Spring Kit
Kibblewhite
$471.02Kibblewhite - 20-23950 - Beehive Shim Spring KitFeaturesBeehive Shim Spring Kit for M8 enginesSpecsUnitsKitTypeShimProduct NameSpring KitRiding StyleStreetFitment2017-2021 Harley-Davidson CVO Electra Glide Ultra Limited FLHTKSE2018-2022 Harley-Davidson...$471.02 -
Out of stock
Kibblewhite - 20-23900 - Beehive Shim Spring Kit
Kibblewhite
$422.95Kibblewhite - 20-23900 - Beehive Shim Spring KitFeaturesBeehive Shim Spring Kit for M8 enginesSpecsUnitsKitTypeShimProduct NameSpring KitRiding StyleStreetFitment2017-2021 Harley-Davidson CVO Electra Glide Ultra Limited FLHTKSE2018-2022 Harley-Davidson...$422.95 -
Out of stock
Kibblewhite - 10-HC510 - Valve Seat
Kibblewhite
$14.47Kibblewhite - 10-HC510 - Valve SeatFeaturesCopper-based material designed specifically for use with titanium valves in high performance applicationsGive the seat excellent thermal characteristics as well as resistance to corrosion and wearThese seats are...$14.47 -
Out of stock
Kibblewhite - 10-HC445 - Valve Seat
Kibblewhite
$14.47Kibblewhite - 10-HC445 - Valve SeatFeaturesCopper-based material designed specifically for use with titanium valves in high performance applicationsGive the seat excellent thermal characteristics as well as resistance to corrosion and wearThese seats are...$14.47 -
Out of stock
Kibblewhite - 10-HC370 - Valve Seat
Kibblewhite
$14.47Kibblewhite - 10-HC370 - Valve SeatFeaturesCopper-based material designed specifically for use with titanium valves in high performance applicationsGive the seat excellent thermal characteristics as well as resistance to corrosion and wearThese seats are...$14.47 -
Out of stock
Kibblewhite - 20-23600 - Valve Spring Kit - 0.675" Lift - 88"/96"/103" Twin Cam | Buell | XL | XR
Kibblewhite
$226.58Kibblewhite - 20-23600 - Valve Spring Kit - 0.675" Lift - 88"/96"/103" Twin Cam | Buell | XL | XRFeaturesDesigned for its specific application, taking into account several critical parameters including; cam profiles, harmonics, natural frequency of the...$226.58 -
Out of stock
Kb Performance - KB576LCA.STD - Piston Kit - 4.250" Standard - 11.4:1 CR - 124" Big Bore - 107" M8
Kb Performance
$425.57Kb Performance - KB576LCA.STD - Piston Kit - 4.250" Standard - 11.4:1 CR - 124" Big Bore - 107" M8FeaturesUpdates stock 107\Valve pockets are designed to accept up to +4.00 mm oversized intake and exhaust valvesType 3 hard-anodized crown offers corrosion...$425.57 -
Out of stock
Kb Performance - KB661LCA.010 - Piston Kit - 4.00" +0.010" - 10.0:1 CR - 96"-103" Twin Cam Bored to 110 ci w/SE 95 cc Heads
Kb Performance
$390.86Kb Performance - KB661LCA.010 - Piston Kit - 4.00" +0.010" - 10.0:1 CR - 96"-103" Twin Cam Bored to 110 ci w/SE 95 cc HeadsFeaturesNew skirt coating technology is applied to the entire thickness of the piston-to-wall clearance for a zero install...$390.86 -
Out of stock
Kb Performance - KB542LCA.020 - Piston Kit - 4.125" +0.020" - 11.0:1 CR - 114"/117" Bored to 120" - M8
Kb Performance
$407.71Kb Performance - KB542LCA.020 - Piston Kit - 4.125" +0.020" - 11.0:1 CR - 114"/117" Bored to 120" - M8FeaturesNew skirt coating technology is applied to the entire thickness of the piston-to-wall clearance for a zero install clearance; coating then...$407.71 -
Out of stock
Kb Performance - KB542LCA.STD - Piston Kit - 4.125" Standard - 11.0:1 CR - 114"/117" Bored to 120" - M8
Kb Performance
$407.71Kb Performance - KB542LCA.STD - Piston Kit - 4.125" Standard - 11.0:1 CR - 114"/117" Bored to 120" - M8FeaturesNew skirt coating technology is applied to the entire thickness of the piston-to-wall clearance for a zero install clearance; coating then...$407.71 -
Out of stock
Kb Performance - KB660LCA.010 - Piston Kit - 3.875" +0.010" - 10.0:1 CR - 103" Twin Cam | 96" Big Bore to 103" w/SE 95 cc Heads
Kb Performance
$390.86Kb Performance - KB660LCA.010 - Piston Kit - 3.875" +0.010" - 10.0:1 CR - 103" Twin Cam | 96" Big Bore to 103" w/SE 95 cc HeadsFeaturesNew skirt coating technology is applied to the entire thickness of the piston-to-wall clearance for a zero install...$390.86
Harley Engine
At Deadbeat Customs, we offer a wide selection of Harley engine parts built for performance, reliability, and long-lasting power. Whether you're rebuilding a vintage motor or upgrading a modern setup, we’ve got the top-end and bottom-end components you need to get the job done right.
We carry engine parts for a wide range of Harley Davidson models, including Dyna, Sportster, FXR, Touring, Softail, Shovelhead, and Panhead. From the classic Evo 1340 and Shovelhead to Twin Cam 88/96/103/110, and the modern Milwaukee-Eight 107/114/117, our catalog covers nearly every era of Harley engine design.
Choose from trusted brands like S&S Cycle, Fueling, Vance & Hines, and more—known for producing high-quality components that meet or exceed OEM standards.
Explore our full collection of Harley engine parts today and build your motor with confidence—because whether it’s vintage or modern, your Harley deserves the best from the inside out.