Cylinder Heads
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Kpmi - 20-2124C - Guide Intake +0.004 Cast Iron Hd Evo 84-99 Sportster 86-03
KPMI
$8.95Kpmi - 20-2124C - Guide Intake +0.004 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 -
Kpmi - 20-20699C - Guide Intake +0.010 Cast Iron Hd Twin Cam 88-103" 05-10
KPMI
$11.95Kpmi - 20-20699C - Guide Intake +0.010 Cast Iron Hd Twin Cam 88-103" 05-10FeaturesFitment2014-2017Harley DavidsonXL1200T Super Low Touring2015-2016Harley DavidsonFLRT Freewheeler2015-2016Harley DavidsonFLHTCUL Electra Glide Ultra Classic...$11.95 -
Kpmi - 20-20709 - Guide Ex +0.010 Bronze Hd Twin Cam 88-103" 05-10
KPMI
$29.60Kpmi - 20-20709 - Guide Ex +0.010 Bronze Hd Twin Cam 88-103" 05-10FeaturesFitment2014Harley DavidsonXL1200T Super Low Touring2015-2016Harley DavidsonFLRT Freewheeler2015-2016Harley DavidsonFLHTCUL Electra Glide Ultra Classic Low2015-2016Harley...$29.60 -
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 -
Kpmi - 20-4329 - Guide In / Ex +0.010 Bronze Hd Evo 84-99
KPMI
$37.93Kpmi - 20-4329 - Guide In / Ex +0.010 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 -
Kpmi - 20-4329C - Guide In / Ex +0.010 Cast Iron Hd Evo 84-99
KPMI
$8.95Kpmi - 20-4329C - Guide In / Ex +0.010 Cast Iron Hd Evo 84-99FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic1986-1994Harley DavidsonFXR...$8.95 -
Kpmi - 10-SC446 - Exhaust Valve Seat Powd Metal 44.6Mm Evo Big Twin 84-99/Xl
KPMI
$10.95Kpmi - 10-SC446 - Exhaust Valve Seat Powd Metal 44.6Mm 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...$10.95 -
Kpmi - 20-21012H - White Diamond Intake Valve M8 1.571 Std
KPMI
$30.95Kpmi - 20-21012H - White Diamond Intake Valve M8 1.571 StdFeaturesFitment2017-2019Harley DavidsonFLRT Freewheeler2017-2019Harley DavidsonFLHTKL Electra Glide Ultra Limited Low2017-2019Harley DavidsonFLTRXS Road Glide Special2017-2019Harley DavidsonFLHR...$30.95 -
Kpmi - 20-21009H - White Diamond Intake Valve M8 1.630 Os
KPMI
$30.95Kpmi - 20-21009H - White Diamond Intake Valve M8 1.630 OsFeaturesFitment2017-2019Harley DavidsonFLRT Freewheeler2017-2019Harley DavidsonFLHTKL Electra Glide Ultra Limited Low2017-2019Harley DavidsonFLTRXS Road Glide Special2017-2019Harley DavidsonFLHR...$30.95 -
Kpmi - 20-21018K - White Diamond Exhaust Valve M8 1.284 Os Inconnel
KPMI
$37.55Kpmi - 20-21018K - White Diamond Exhaust Valve M8 1.284 Os InconnelFeaturesAll 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 -
Kpmi - 20-21020 - Guide Intake Std Bronze M8 `17-24 Non Vvt
KPMI
$26.89Kpmi - 20-21020 - Guide Intake Std Bronze M8 `17-24 Non VvtFeaturesFitment2017-2019Harley DavidsonFLRT Freewheeler2017-2019Harley DavidsonFLHTKL Electra Glide Ultra Limited Low2017-2025Harley DavidsonFLTRXS Road Glide Special2017-2022Harley DavidsonFLHR...$26.89 -
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 -
Kpmi - 20-21022 - Guide Intake 0.002 Bronze M8
KPMI
$26.89Kpmi - 20-21022 - Guide Intake 0.002 Bronze M8FeaturesFitment2017-2019Harley DavidsonFLRT Freewheeler2017-2019Harley DavidsonFLHTKL Electra Glide Ultra Limited Low2017-2019Harley DavidsonFLTRXS Road Glide Special2017-2019Harley DavidsonFLHR Road...$26.89 -
Kpmi - 20-21029 - Guide Intake 0.010 Bronze M8
KPMI
$26.89Kpmi - 20-21029 - Guide Intake 0.010 Bronze M8FeaturesFitment2017-2019Harley DavidsonFLRT Freewheeler2017-2019Harley DavidsonFLHTKL Electra Glide Ultra Limited Low2017-2019Harley DavidsonFLTRXS Road Glide Special2017-2019Harley DavidsonFLHR Road...$26.89 -
Kpmi - 20-21030 - Guide Exhaust Std Bronze M8
KPMI
$26.89Kpmi - 20-21030 - Guide Exhaust Std Bronze M8FeaturesFitment2017-2019Harley DavidsonFLRT Freewheeler2017-2019Harley DavidsonFLHTKL Electra Glide Ultra Limited Low2017-2025Harley DavidsonFLTRXS Road Glide Special2017-2022Harley DavidsonFLHR Road...$26.89 -
Kpmi - 20-21031 - Guide Exhaust 0.001 Bronze M8
KPMI
$26.89Kpmi - 20-21031 - Guide Exhaust 0.001 Bronze M8FeaturesFitment2017-2019Harley DavidsonFLRT Freewheeler2017-2019Harley DavidsonFLHTKL Electra Glide Ultra Limited Low2017-2019Harley DavidsonFLTRXS Road Glide Special2017-2019Harley DavidsonFLHR Road...$26.89 -
Kpmi - 51016-4 - Valve Keepers Set Of Four Twin Cam 05-17 W/7Mm Stem
KPMI
$6.95Kpmi - 51016-4 - Valve Keepers Set Of Four Twin Cam 05-17 W/7Mm StemFeaturesOEM Style valve keepersFitment2014-2017Harley DavidsonXL1200T Super Low Touring2015-2016Harley DavidsonFLRT Freewheeler2015-2016Harley DavidsonFLHTCUL Electra Glide Ultra Classic...$6.95 -
Kpmi - 20-21400 - Spring Kit .610 Lift Hd Tc
KPMI
$184.99Kpmi - 20-21400 - Spring Kit .610 Lift Hd TcFeaturesWound 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 each...$184.99 -
Kpmi - 20-21017H - White Diamond Exhaust Valve M8 1.284 Os
KPMI
$30.95Kpmi - 20-21017H - White Diamond Exhaust Valve M8 1.284 OsFeaturesFitment2018-2020Harley DavidsonFLHR Road King2018-2020Harley DavidsonFLHRXS Road King Special2018-2020Harley DavidsonFLHX Street Glide2018-2020Harley DavidsonFLHXS Street Glide...$30.95 -
Kpmi - 20-20915 - Black Diamond O/S Int. Valve Evo/Twin Cam `84-04
KPMI
$41.95Kpmi - 20-20915 - Black Diamond O/S Int. Valve Evo/Twin Cam `84-04FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic2002-2003Harley...$41.95 -
Kpmi - 20-20920 - Black Diamond O/S Ex. Valve Evo/Twin Cam `84-04
KPMI
$41.95Kpmi - 20-20920 - 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 -
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 -
Kpmi - 20-20930 - Black Diamond O/S Ex. Valve Evo/Twin Cam `84-04
KPMI
$41.95Kpmi - 20-20930 - 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 -
Kpmi - 20-21061H - White Diamond Int. Valve 1.630 O/S M8 `17-24 Non Vvt
KPMI
$31.95Kpmi - 20-21061H - White Diamond Int. Valve 1.630 O/S M8 `17-24 Non VvtFeaturesFitment2017-2019Harley DavidsonFLHTKL Electra Glide Ultra Limited Low2017-2023Harley DavidsonFLTRXS Road Glide Special2017-2022Harley DavidsonFLHR Road King2017-2019Harley...$31.95 -
Kpmi - 20-21215 - Beehive Valve Spring Kit .550 Lift M8`17-24 Non Vvt
KPMI
$332.95Kpmi - 20-21215 - Beehive Valve Spring Kit .550 Lift M8`17-24 Non Vvt$332.95 -
Kpmi - 20-24400 - Beehive Valve Spring Kit .640 Lift M8`17-24 Non Vvt
KPMI
$539.84Kpmi - 20-24400 - Beehive Valve Spring Kit .640 Lift M8`17-24 Non Vvt$539.84 -
Kpmi - 20-2053C - Guide Intake +0.003 Cast Iron Shovelhead `78-83
KPMI
$8.99Kpmi - 20-2053C - Guide Intake +0.003 Cast Iron Shovelhead `78-83$8.99 -
Kpmi - 20-2063C - Guide Exhaust +0.003 Cast Iron Shovelhead `78-83
KPMI
$8.99Kpmi - 20-2063C - Guide Exhaust +0.003 Cast Iron Shovelhead `78-83$8.99 -
Kpmi - 20-21850 - Racing Valve Spring Kit .625 Lift H.T. Steel Retainer
KPMI
$332.95Kpmi - 20-21850 - Racing Valve Spring Kit .625 Lift H.T. Steel RetainerFeaturesWound 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...$332.95 -
V-Twin - 49-7676 - Indian Chief Aluminum Head Bolt Set
V-Twin Mfg
MSRP: $83.22$82.38V-Twin - 49-7676 - Indian Chief Aluminum Head Bolt SetDescriptionIndian Chief aluminum head bolt set Fits:ChiefAdditional Information OEM No.I32I0359D UOM1 - KIT ManufacturerV-Twin OriginUSA 2025 Catalog Pages825MSRP: $83.22$82.38 -
V-Twin - 49-1348 - 1936 EL Cylinder Head Set Bare
Motortechnic
MSRP: $5,001.12$4,789.07V-Twin - 49-1348 - 1936 EL Cylinder Head Set BareDescriptionBare Knucklehead cylinder head set features a cast iron construction with factory casting marks. This is the exact replica of the 1936 EL models, for 61" motors. Features a black painted finish...MSRP: $5,001.12$4,789.07 -
V-Twin - 49-1310 - 1937-1938 EL Knucklehead Bare Cylinder Head Set
Motortechnic
MSRP: $4,778.50$4,575.89V-Twin - 49-1310 - 1937-1938 EL Knucklehead Bare Cylinder Head SetDescription1937-1938 EL bare Knucklehead head set features OEM production numbers, mc hallmark, small intake port, primer black plugs, manifold nipples and are painted with black heat...MSRP: $4,778.50$4,575.89 -
V-Twin - 49-1038 - 45 Rear Cylinder Head
V-Twin Mfg
$400.40V-Twin - 49-1038 - 45 Rear Cylinder HeadDescription45 rear cylinder head only. Fits:G 1941-1973WL 1941-1952Additional Information OEM No.379-403R UOM1 - EA ManufacturerV-Twin OriginImported$400.40 -
V-Twin - 49-1019 - WLDR Cylinder Head Set
V-Twin Mfg
$712.27V-Twin - 49-1019 - WLDR Cylinder Head Set Description Cylinder head set features special 69cc combustion chamber and accepts 18mm spark plugs and head bolts.Heads are for use on stock 45 cylinders, not the WR angled type. *NOTE: Must order head bolts...$712.27 -
V-Twin - 49-0945 - 6:1 High Compression Head Set Aluminum
V-Twin Mfg
$649.39V-Twin - 49-0945 - 6:1 High Compression Head Set AluminumDescriptionHeads have a steel insert, cast in, to accept the 18mm spark plug.Combustion champer is 10.5mm deep. Sold as a set of 2. Fits:G 1939-1973WLD 1939-1946W 1939-1952Additional Information ...$649.39 -
V-Twin - 49-0908 - 5:1 Low Compression Head Set Aluminum
V-Twin Mfg
$522.40V-Twin - 49-0908 - 5:1 Low Compression Head Set AluminumDescriptionHeads have a steel insert, cast in to accept the 18mm spark plug.Combustion chamber is 10.5mm deep. Fits:WLD 1940-1942WLDR 1940-1941WL 1947-1957Additional Information OEM No.16683-39 ...$522.40 -
V-Twin - 49-0668 - Nickel Plated Head Primer Cups
V-Twin Mfg
MSRP: $82.08$81.26V-Twin - 49-0668 - Nickel Plated Head Primer CupsDescriptionHead prime cups are for Flathead and Overhead Valve models and features a nickel plated finish, for exact applications or restoration.Includes knurled knob and valve insert. Fits:EL 1936-1938FL...MSRP: $82.08$81.26 -
V-Twin - 49-0276 - Long Headbolt
V-Twin Mfg
$19.66V-Twin - 49-0276 - Long HeadboltDescriptionLong headbolt for side valve models Fits:G 1965-1973Additional Information OEM No.14-4OMA UOM1 - SET ManufacturerV-Twin OriginUSA 2025 Catalog Pages795$19.66 -
V-Twin - 49-0055 - Indian Aluminum Head Bolt Washer
V-Twin Mfg
MSRP: $23.86$22.31V-Twin - 49-0055 - Indian Aluminum Head Bolt WasherDescriptionIndian aluminum head bolt washer Fits:Chief 1936-1953Additional Information OEM No.I37618 UOM20 - PK ManufacturerV-Twin OriginUSA 2025 Catalog Pages825MSRP: $23.86$22.31 -
V-Twin - 49-0009 - Brass Head Primer Cups
V-Twin Mfg
MSRP: $81.92$81.09V-Twin - 49-0009 - Brass Head Primer CupsDescriptionHead primer cups are for Flathead and Overhead Valve models and features a solid brass construction for exact applications or restoration.Includes knurled knob and valve insert. Fits:UL 1937-1938EL...MSRP: $81.92$81.09
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.