Cylinder Heads
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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 - 20-2131C - Guide Ex +0.001 Cast Iron Hd Evo 84-99 Sportster 86-03
KPMI
$8.95Kpmi - 20-2131C - Guide Ex +0.001 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
$8.95Kpmi - 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...$8.95 -
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
$8.95Kpmi - 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...$8.95 -
Out of stock
Kpmi - 20-2020C - Guide Intake Std Cast Iron Hd Pan 48-65 & Shovel 66-77
KPMI
$8.95Kpmi - 20-2020C - Guide Intake Std Cast Iron Hd Pan 48-65 & Shovel 66-77FeaturesFitment1974-1977Harley DavidsonFXE Super Glide1977Harley DavidsonFXS Low Rider1955-1964, 1970-1977Harley DavidsonFLH Electra Glide$8.95 -
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
$8.95Kpmi - 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...$8.95 -
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 - 2012-8 - Headbolt Kit Chrome Bt 92-16 And Xl 93-Up
Colony Machine
$128.95Colony Machine - 2012-8 - Headbolt Kit Chrome Bt 92-16 And Xl 93-UpFeaturesAdd a custom look to your bikeMade in the USA!Fitment2014-2017Harley DavidsonXL1200T Super Low Touring2016-2019Harley DavidsonXL1200CX Roadster2009-2019Harley DavidsonXL883N Iron...$128.95 -
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
$66.95Kpmi - 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...$66.95 -
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 - 20-21300 - Sprng Kit .610 Lift Evo 84-99 Tc '99-04 5/16 Stem Valves
KPMI
$184.99Kpmi - 20-21300 - Sprng Kit .610 Lift Evo 84-99 Tc '99-04 5/16 Stem ValvesFeaturesWound 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...$184.99 -
Out of stock
Kpmi - 20-21016H - White Diamond Exhaust Valve M8 1.264 Std
KPMI
$30.95Kpmi - 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...$30.95 -
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 - 20-21800 - 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 - 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 -
Out of stock
V-Twin - 11-1775 - Cylinder Head Set With Rocker Assembly
Motorshop
$6,603.04V-Twin - 11-1775 - Cylinder Head Set With Rocker AssemblyDescriptionKnucklehead cylinder head set features original cast iron with black finish. Head set includes valves, springs, collars, and guides with parkerized upper and lower valve cover sets...$6,603.04 -
Out of stock
V-Twin - 11-1559 - 45 inch Valve Guide Set
V-Twin Mfg
$290.20V-Twin - 11-1559 - 45 inch Valve Guide SetDescription45" valve guide set is the long shoulder type and is the same guide intake and exhaust.Sold as a set of 4. Fits:DL 1929-1931Additional Information UOM1 - SET ManufacturerV-Twin OriginUSA 2025...$290.20 -
Out of stock
V-Twin - 11-1543 - Valve Keeper Pins
Eastern
MSRP: $37.35$33.27V-Twin - 11-1543 - Valve Keeper PinsDescriptionValve keeper pins for use in slotted valves.Sold as a pack of 5. Fits:JD 1915-1929DL 1929-1935Additional Information UOM5 - PK ManufacturerEastern OriginUSAMSRP: $37.35$33.27 -
Out of stock
V-Twin - 11-1297 - Knucklehead Cylinder Head Set
Motorshop
$3,853.31V-Twin - 11-1297 - Knucklehead Cylinder Head SetDescriptionKnucklehead cylinder head set features original cast iron construction with a black finish. Head set includes valves, springs, collars and guides with chrome rocker arm covers. Set includes head...$3,853.31 -
Out of stock
V-Twin - 11-1224 - M8 Cast Iron Intake Valve Guide
Kibblewhite
MSRP: $13.86$12.47V-Twin - 11-1224 - M8 Cast Iron Intake Valve GuideDescriptionCast iron intake valve guide is for M8 models and is .001" oversize. Fits:FLT 2017-UPAdditional Information UOM1 - EA ManufacturerKibblewhite MaterialCast Iron OriginUSA Size.001 2025...MSRP: $13.86$12.47 -
Out of stock
V-Twin - 11-1107 - 900/1000cc Nitrate Steel Exhaust Valve
Sifton
$67.98V-Twin - 11-1107 - 900/1000cc Nitrate Steel Exhaust ValveDescriptionSifton nitrate steel exhaust valve Fits:XL 1958-1985Additional Information UOM1 - EA ManufacturerSifton OriginUSA 2025 Catalog Pages851 Replacement Items11-0617 - 900/1000cc Nitrate...$67.98 -
Out of stock
V-Twin - 11-1106 - 1000cc Nitrate Steel Intake Valve
Sifton
$45.05V-Twin - 11-1106 - 1000cc Nitrate Steel Intake ValveDescriptionSifton nitrate steel intake valve Fits:XL 1970-1985Additional Information UOM1 - EA ManufacturerSifton OriginUSA 2025 Catalog Pages851 Replacement Items11-0609 - 1000cc Nitrate Steel...$45.05 -
Out of stock
V-Twin - 11-1064 - Cast Iron .001 Exhaust Valve Guide
Kibblewhite
MSRP: $23.94$20.34V-Twin - 11-1064 - Cast Iron .001 Exhaust Valve GuideDescriptionPrecision machine .001 cast iron exhaust valve guide Fits:FLST 2005-2017XL 2004-UPFXD 2005-2017FLT 2005-2016FXST 2005-2017Additional Information UOM1 - EA ManufacturerKibblewhite ...MSRP: $23.94$20.34 -
Out of stock
V-Twin - 11-1060 - Cast Iron Standard Intake Valve Guide
Kibblewhite
MSRP: $20.80$17.68V-Twin - 11-1060 - Cast Iron Standard Intake Valve GuideDescriptionPrecision machine cast iron intake valve guide is standard size Fits:FLST 2005-2017XL 2004-UPFXD 2005-2017FLT 2005-2016FXST 2005-2017Additional Information UOM1 - EA ...MSRP: $20.80$17.68 -
Out of stock
V-Twin - 11-1051 - Ampco 45 .002 Exhaust Valve Guide
Kibblewhite
$32.60V-Twin - 11-1051 - Ampco 45 .002 Exhaust Valve GuideDescriptionPrecision machine .002 exhaust valve guide is made of ampco 45 and features viton stem seal that locks into a machined g roove on guide. Fits:FXD 1991-2004FXST 1984-2004FLST 1986-2004FLT...$32.60 -
Out of stock
V-Twin - 11-1045 - Ampco 45 .001 Intake Valve Guide
Kibblewhite
MSRP: $32.60$30.48V-Twin - 11-1045 - Ampco 45 .001 Intake Valve GuideDescriptionPrecision machine .001 intake valve guide is made of ampco 45 and features viton stem seal that locks into a machined groove on guide. Fits:FXD 1991-2004FXST 1984-2004FLST 1986-2004FLT...MSRP: $32.60$30.48 -
Out of stock
V-Twin - 11-0977 - Kibblewhite Cast Iron .003 Exhaust Valve Guide
Kibblewhite
MSRP: $19.94$17.94V-Twin - 11-0977 - Kibblewhite Cast Iron .003 Exhaust Valve GuideDescriptionKibblewhite .003 cast iron exhaust valve guide. Fits:FX 1971-1978FL 1948-1978Additional Information UOM1 - EA ManufacturerKibblewhite MaterialCast Iron OriginUSA Size.003 ...MSRP: $19.94$17.94 -
Out of stock
V-Twin - 11-0975 - Kibblewhite Cast Iron .001 Exhaust Valve Guide
Kibblewhite
MSRP: $19.94$17.94V-Twin - 11-0975 - Kibblewhite Cast Iron .001 Exhaust Valve GuideDescriptionKibblewhite .001 cast iron exhaust valve guide. Fits:FX 1971-1978FL 1948-1978Additional Information UOM1 - EA ManufacturerKibblewhite MaterialCast Iron OriginUSA Size.001 ...MSRP: $19.94$17.94 -
Out of stock
V-Twin - 11-0967 - Kibblewhite Cast Iron .001 Intake Valve Guide
Kibblewhite
MSRP: $19.94$17.94V-Twin - 11-0967 - Kibblewhite Cast Iron .001 Intake Valve GuideDescriptionKibblewhite .001 cast iron intake valve guide. Fits:FX 1971-1978FL 1948-1978Additional Information UOM1 - EA ManufacturerKibblewhite MaterialCast Iron OriginUSA Size.001 ...MSRP: $19.94$17.94
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.