Cylinder Heads
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Out of stock
Kpmi - 20-4196 - Black Diamond Intake Valve Hd Sportster 70-83
KPMI
$37.55Kpmi - 20-4196 - Black Diamond Intake Valve Hd Sportster 70-83FeaturesAll KPMI Black Diamond® stainless steel valves are impregnated by a special German process to a depth of .002”, with a surface build up of .0002”. This “Black Diamond®” process...$37.55 -
Out of stock
Kpmi - 20-20122 - Spring Kit .600 Lift Hd Twin Cam
KPMI
$280.95Kpmi - 20-20122 - Spring Kit .600 Lift Hd Twin CamFeaturesWound from Premium Kobe Super-Clean Chrome Silicon Wire. KPMI valve springs are heat-treated, stress relieved and shot peened to insure maximum performance and life. Springs are engineered for...$280.95 -
Out of stock
Kpmi - 20-2104 - Exhaust Spigot Hd Panhead
KPMI
$11.50Kpmi - 20-2104 - Exhaust Spigot Hd PanheadFeaturesReplacement exhaust spigot has been designed and machined from 6061-T6 Aluminum extruded tubingThis spigot allows you to rebuild the exhaust attachment point on you classic Panhead engine$11.50 -
Out of stock
Kpmi - 20-2050C - Guide Intake Std Cast Iron Hd Shovelhead 78-83
KPMI
$9.71Kpmi - 20-2050C - Guide Intake Std Cast Iron Hd Shovelhead 78-83FeaturesFitment1983Harley DavidsonFLHTC Electra Glide Classic1982-1983Harley DavidsonFXR Super Glide1980-1982Harley DavidsonFXB Sturgis1978-1983Harley DavidsonFXE Super Glide1979-1981Harley...$9.71 -
Out of stock
Kpmi - 20-4320 - Guide In / Ex Std. Bronze Hd Evolution 87-99
KPMI
$37.93Kpmi - 20-4320 - Guide In / Ex Std. Bronze Hd Evolution 87-99FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic1986-1994Harley DavidsonFXR...$37.93 -
Out of stock
Kpmi - 20-4320C - Guide In / Ex Std. Cast Iron Hd Evolution 87-99
KPMI
$9.71Kpmi - 20-4320C - Guide In / Ex Std. Cast Iron Hd Evolution 87-99FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic1986-1994Harley DavidsonFXR...$9.71 -
Out of stock
Kpmi - 20-4321 - Guide In / Ex +0.001 Bronze Hd Evolution 87-99
KPMI
$37.93Kpmi - 20-4321 - Guide In / Ex +0.001 Bronze Hd Evolution 87-99FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic1986-1994Harley DavidsonFXR...$37.93 -
Out of stock
Kpmi - 20-20700C - Guide Exhaust Std Cast Iron Hd Twin Cam 88-103" 05-11
KPMI
$11.95Kpmi - 20-20700C - Guide Exhaust Std Cast Iron Hd Twin Cam 88-103" 05-11FeaturesFitment2014-2017Harley DavidsonXL1200T Super Low Touring2015-2016Harley DavidsonFLRT Freewheeler2015-2016Harley DavidsonFLHTCUL Electra Glide Ultra Classic Low2015-2016Harley...$11.95 -
Out of stock
Kpmi - 20-20701 - Guide Exhaust +0.001 Bronze Hd Twin Cam 88-103" 05-11
KPMI
$29.60Kpmi - 20-20701 - Guide Exhaust +0.001 Bronze Hd Twin Cam 88-103" 05-11FeaturesFitment2014-2017Harley DavidsonXL1200T Super Low Touring2015-2016Harley DavidsonFLRT Freewheeler2015-2016Harley DavidsonFLHTCUL Electra Glide Ultra Classic Low2015-2016Harley...$29.60 -
Out of stock
Kpmi - 20-2033 - Guide Ex +0.003 Bronze Hd Pan 48-65 & Shovel 66-77
KPMI
$34.40Kpmi - 20-2033 - Guide Ex +0.003 Bronze Hd Pan 48-65 & Shovel 66-77$34.40 -
Out of stock
Kpmi - 20-2064C - Guide Ex +0.004 Cast Iron Hd Shovelhead 78-83
KPMI
$9.71Kpmi - 20-2064C - Guide Ex +0.004 Cast Iron Hd Shovelhead 78-83FeaturesFitment1983Harley DavidsonFLHTC Electra Glide Classic1982-1983Harley DavidsonFXR Super Glide1980-1982Harley DavidsonFXB Sturgis1980-1983Harley DavidsonFXE Super Glide1980-1981Harley...$9.71 -
Out of stock
Kpmi - 20-20702C - Guide Ex +.002 Cast Iron Hd Twin Cam 88-103 2005-13
KPMI
$11.95Kpmi - 20-20702C - Guide Ex +.002 Cast Iron Hd Twin Cam 88-103 2005-13FeaturesFitment2014-2017Harley DavidsonXL1200T Super Low Touring2015-2016Harley DavidsonFLRT Freewheeler2015-2016Harley DavidsonFLHTCUL Electra Glide Ultra Classic Low2015-2016Harley...$11.95 -
Out of stock
Kpmi - 20-2130C - Guide Ex Std Cast Iron Hd Evo 84-99 Sportster 86-03
KPMI
$8.95Kpmi - 20-2130C - Guide Ex Std Cast Iron Hd Evo 84-99 Sportster 86-03FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic1986-1994Harley...$8.95 -
Out of stock
Kpmi - 20-4322C - Guide In / Ex +0.002 Iron Hd Evo 84-99
KPMI
$9.71Kpmi - 20-4322C - Guide In / Ex +0.002 Iron Hd Evo 84-99FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic1986-1994Harley DavidsonFXR Super...$9.71 -
Out of stock
Kpmi - 20-4323 - Guide In / Ex +0.003 Bronze Hd Evo 84-99
KPMI
$37.93Kpmi - 20-4323 - Guide In / Ex +0.003 Bronze Hd Evo 84-99FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic1986-1994Harley DavidsonFXR Super...$37.93 -
Out of stock
Kpmi - 20-4323C - Guide In / Ex +0.003 Ron Hd Evo 84-99
KPMI
$9.71Kpmi - 20-4323C - Guide In / Ex +0.003 Ron Hd Evo 84-99FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic1986-1994Harley DavidsonFXR Super...$9.71 -
Out of stock
Kpmi - 20-20692C - Guide In +.002 Cast Iron Hd Twin Cam 88"-103" 05-13
KPMI
$11.95Kpmi - 20-20692C - Guide In +.002 Cast Iron Hd Twin Cam 88"-103" 05-13FeaturesFitment2014-2017Harley DavidsonXL1200T Super Low Touring2015-2016Harley DavidsonFLRT Freewheeler2015-2016Harley DavidsonFLHTCUL Electra Glide Ultra Classic Low2015-2016Harley...$11.95 -
Out of stock
Kpmi - 20-2120 - Guide Intake Std Bronze Hd Evo 84-99 Sportster 86-03
KPMI
$31.71Kpmi - 20-2120 - Guide Intake Std Bronze Hd Evo 84-99 Sportster 86-03FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic1986-1994Harley...$31.71 -
Out of stock
Kpmi - 20-2120C - Guide Intake Std Cast Iron Hd Evo 84-99 Sportster 86-03
KPMI
$9.71Kpmi - 20-2120C - Guide Intake Std Cast Iron Hd Evo 84-99 Sportster 86-03FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic1986-1994Harley...$9.71 -
Out of stock
Kpmi - 20-2123C - Guide Intake +0.003 Cast Iron Hd Evo 84-99 Sportster 86-03
KPMI
$9.71Kpmi - 20-2123C - Guide Intake +0.003 Cast Iron Hd Evo 84-99 Sportster 86-03FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic1986-1994Harley...$9.71 -
Out of stock
Kpmi - 20-20709C - Guide Ex +0.010 Cast Iron Hd Twin Cam 88-103" 05-10
KPMI
$11.95Kpmi - 20-20709C - Guide Ex +0.010 Cast Iron Hd Twin Cam 88-103" 05-10FeaturesFitment2014Harley DavidsonXL1200T Super Low Touring2015-2016Harley DavidsonFLRT Freewheeler2015-2016Harley DavidsonFLHTCUL Electra Glide Ultra Classic Low2015-2016Harley...$11.95 -
Out of stock
Kpmi - 10-SC541 - Intake Valve Seat Powd Metal 54.1Mm Evo Big Twin 84-99/Xl
KPMI
$12.95Kpmi - 10-SC541 - Intake Valve Seat Powd Metal 54.1Mm Evo Big Twin 84-99/XlFeaturesKibblewhite's proprietary seat material is compatible with leaded and unleaded fuels including methanol and ethanol fuel blends. This material offers excellent thermal...$12.95 -
Out of stock
Colony Machine - 2011-8 - Headbolt Kit Chrome Bt 85-91 And Xl 86-92
Colony Machine
$128.00Colony Machine - 2011-8 - Headbolt Kit Chrome Bt 85-91 And Xl 86-92FeaturesAdd a custom look to your bikeMade in the USA!$128.00 -
Out of stock
Kpmi - 51029-8 - Valve Keeper Oem Style M8 Pack Of 8
KPMI
$68.96Kpmi - 51029-8 - Valve Keeper Oem Style M8 Pack Of 8FeaturesOEM Style valve keepersFitment2017-2019Harley DavidsonFLRT Freewheeler2017-2019Harley DavidsonFLHTKL Electra Glide Ultra Limited Low2017-2019Harley DavidsonFLTRXS Road Glide...$68.96 -
Out of stock
Kpmi - 20-21021 - Guide Intake 0.001 Bronze M8
KPMI
$26.89Kpmi - 20-21021 - Guide Intake 0.001 Bronze M8FeaturesFitment2017-2019Harley DavidsonFLRT Freewheeler2017-2019Harley DavidsonFLHTKL Electra Glide Ultra Limited Low2017-2019Harley DavidsonFLTRXS Road Glide Special2017-2019Harley DavidsonFLHR Road...$26.89 -
Out of stock
Kpmi - 20-21039 - Guide Exhaust 0.010 Bronze M8
KPMI
$26.89Kpmi - 20-21039 - Guide Exhaust 0.010 Bronze M8FeaturesFitment2017-2019Harley DavidsonFLRT Freewheeler2017-2019Harley DavidsonFLHTKL Electra Glide Ultra Limited Low2017-2019Harley DavidsonFLTRXS Road Glide Special2017-2019Harley DavidsonFLHR Road...$26.89 -
Out of stock
Kpmi - 20-21016H - White Diamond Exhaust Valve M8 1.264 Std
KPMI
$32.78Kpmi - 20-21016H - White Diamond Exhaust Valve M8 1.264 StdFeaturesFitment2018-2020Harley DavidsonFLHR Road King2018-2020Harley DavidsonFLHRXS Road King Special2018-2020Harley DavidsonFLHX Street Glide2018-2020Harley DavidsonFLHXS Street Glide...$32.78 -
Out of stock
Kpmi - 20-20925 - Black Diamond O/S Ex. Valve Evo/Twin Cam `84-04
KPMI
$41.95Kpmi - 20-20925 - Black Diamond O/S Ex. Valve Evo/Twin Cam `84-04FeaturesAll KPMI Black Diamond® stainless steel valves are impregnated by a special German process to a depth of .002”, with a surface build up of .0002”. This “Black Diamond®” process...$41.95 -
Out of stock
Kpmi - 20-20940 - Black Diamond O/S Int. Valve Twin Cam 88-103" `05-17
KPMI
$51.95Kpmi - 20-20940 - Black Diamond O/S Int. Valve Twin Cam 88-103" `05-17FeaturesAll KPMI Black Diamond® stainless steel valves are impregnated by a special German process to a depth of .002”, with a surface build up of .0002”. This “Black Diamond®” process...$51.95 -
Out of stock
Kpmi - 20-21060H - White Diamond Int. Valve 1.614 O/S M8 `17-24 Non Vvt
KPMI
$32.78Kpmi - 20-21060H - White Diamond Int. Valve 1.614 O/S M8 `17-24 Non VvtFeaturesFitment2017-2019Harley DavidsonFLHTKL Electra Glide Ultra Limited Low2017-2023Harley DavidsonFLTRXS Road Glide Special2017-2022Harley DavidsonFLHR Road King2017-2019Harley...$32.78 -
Out of stock
Kpmi - 20-21800 - Racing Valve Spring Kit .625 Lift Titanium Retainers
KPMI
$416.95Kpmi - 20-21800 - Racing Valve Spring Kit .625 Lift Titanium RetainersFeaturesWound from Premium Kobe Super-Clean Chrome Silicon Wire. KPMI valve springs are heat-treated, stress relieved and shot peened to insure maximum performance and life. Springs...$416.95 -
Out of stock
V-Twin - 49-1350 - Knucklehead Bare Cylinder Head Set
Motortechnic
MSRP: $2,140.40$2,049.65V-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 Pages515MSRP: $2,140.40$2,049.65 -
Out of stock
V-Twin - 49-0909 - Head Set Aluminum
V-Twin Mfg
$799.76V-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$799.76 -
Out of stock
V-Twin - 42-1153 - Head Bolt and Spark Plug Cover Kit Black
V-Twin Mfg
$80.75V-Twin - 42-1153 - Head Bolt and Spark Plug Cover Kit BlackDescriptionBlack cylinder head bolt and spark plug cover kit for EFI models. Fits:FLT 1999-2016FLST 2000-UPFXST 2000-UPFXD 1999-2017Additional Information OEM No.43859-00 UOM1 - KIT ...$80.75 -
Out of stock
V-Twin - 37-9370 - Head Bolt Hardware Kit
V-Twin Mfg
$135.41V-Twin - 37-9370 - Head Bolt Hardware KitDescriptionHead bolt hardware kit for one head. Fits:XL 1986-1992Additional Information UOM1 - KIT ManufacturerV-Twin OriginUSA 2025 Catalog Pages854 Replacement Items37-9260 - *UPDATE Cylinder Stud...$135.41 -
Out of stock
V-Twin - 16-1508 - 45 W Reamer Pilot Tool
V-Twin Mfg
$244.63V-Twin - 16-1508 - 45 W Reamer Pilot ToolDescriptionReamer pilot tool for 45 W models. Fits:G 1941-1973W 1941-1952Additional Information UOM1 - EA ManufacturerV-Twin OriginUSA$244.63 -
Out of stock
V-Twin - 16-1507 - 45 W Bushing Reamer Tool
V-Twin Mfg
$273.98V-Twin - 16-1507 - 45 W Bushing Reamer ToolDescriptionBushing reamer tool for 45 W models. Fits:G 1941-1973W 1941-1952Additional Information UOM1 - EA ManufacturerV-Twin OriginImported$273.98 -
Out of stock
V-Twin - 13-9194 - Valve Spring Kit
Motorshop
$87.69V-Twin - 13-9194 - Valve Spring KitDescriptionValve spring kit includes all springs, collars and keepers necessary for application. Fits:FL 1980-1981FLT 1980-1981FX 1980-1981Additional Information UOM1 - KIT ManufacturerMotorshop OriginUSA 2025...$87.69 -
Out of stock
V-Twin - 13-9175 - Sifton Valve Spring
Sifton
$53.33V-Twin - 13-9175 - Sifton Valve SpringDescriptionSifton valve springs only.Set of eight. Fits:XL 1983-1985Additional Information OEM No.18203-83 UOM1 - SET ManufacturerSifton OriginUSA 2025 Catalog Pages853$53.33 -
Out of stock
V-Twin - 13-0482 - Valve Spring Kit Black
Sifton
MSRP: $15.88$15.72V-Twin - 13-0482 - Valve Spring Kit BlackDescriptionSifton black valve spring kit includes four outer springs, four inner springs, four lower collars, four upper collars, and four pair of keepers necessary for application. Fits:EL 1936-1940FL...MSRP: $15.88$15.72
Harley Cylinder Heads
Harley cylinder heads are key to unlocking better combustion, more horsepower, and crisper throttle response. Whether you're rebuilding a vintage ride or dialing in your current setup, the right heads can completely transform your V-twin—bringing out that iconic Harley sound and strong, reliable torque.
At Deadbeat Customs, we carry Harley cylinder heads from top brands like S&S. These heads are made from premium aluminum and feature CNC-machined combustion chambers, multi-angle valve seats, and high-performance valve springs. Upgrade your motor with Harley cylinder heads that run cooler, last longer, and hit harder. Check out the collection and take your build to the next level.