Cylinder Heads
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S&S Cycle - Super Stock™ Single Spark Plug Cylinder Heads - fits '79-'84 (Rubber Band Intake) 3 ⅜" Bore Cylinders
S&S Cycle
$1,895.95S&S Cycle - Super Stock™ Single Spark Plug Cylinder Heads - fits '79-'84 (Rubber Band Intake) 3 â…œ" Bore Cylinders Heads come completely assembled with valve seats, valves, guides, seals, .590" lift valve springs, collars and valve...$1,895.95 -
S&S Cycle - Wrinkle Black Powdercoat 79cc Super Stockâ„¢ Cylinder Heads fits '99-'05 Twin Cam Models (.585" Lift)
S&S Cycle
$1,795.95S&S Cycle - Wrinkle Black Powdercoat 79cc Super Stock™ Cylinder Heads fits '99-'05 Twin Cam Models (.585" Lift) S&S Cycle's 79cc Super Stock™ Cylinder Heads' high port flow creates excellent performance after initial installation,...$1,795.95 -
S&S Cycle - 76cc High Compression Performance Cylinder Heads fits '84-'99 Evolution Big Twin Models - Black Powdercoat
S&S Cycle
$1,553.95S&S Cycle - 76cc High Compression Performance Cylinder Heads fits '84-'99 Evolution Big Twin Models - Black Powdercoat Great news: S&S heads are now available to be used with stock-style flat-top pistons! The kits are fully assembled and come...$1,553.95 -
Colony - 9212-16 Cadmium Headbolt Kit fits '73-'85 Sportster Models
Colony Machine
$52.70Colony - 9212-16 Cadmium Headbolt Kit fits '73-'85 Sportster Models Headbolt kit with a cadmium finish. Fitment: XL 1973-1985$52.70 -
S&S Cycle - Silver Powdercoat 79cc Super Stockâ„¢ Cylinder Heads fits '06-'17 Twin Cam Models (Exc. Twin Cooled Motors)
S&S Cycle
MSRP: $2,149.95$1,995.95S&S Cycle - Silver Powdercoat 79cc Super Stock™ Cylinder Heads fits '06-'17 Twin Cam Models (Exc. Twin Cooled Motors) S&S Cycle's 79cc Super Stock™ Cylinder Heads' high port flow creates excellent performance after initial...MSRP: $2,149.95$1,995.95 -
S&S Cycle - Silver Powdercoat 89cc Super Stockâ„¢ Cylinder Heads fits '99-'05 Twin Cam Models
S&S Cycle
$1,995.95S&S Cycle - Silver Powdercoat 89cc Super Stock™ Cylinder Heads fits '99-'05 Twin Cam Models S&S Cycle's 89cc Super Stock™ Cylinder Heads' high port flow creates excellent performance after initial installation, and even greater...$1,995.95 -
Out of stockOn Sale
S&S Cycle - Headbolt Kit fits '84-'99 Evolution Big Twin, '99-'17 Twin Cam & '86-'21 XL Models (exc. '21 S/RH1250S)
S&S Cycle
MSRP: $102.95Now: $92.66Was: $149.95S&S Cycle - Headbolt Kit fits '84-'99 Evolution Big Twin, '99-'17 Twin Cam & '86-'21 XL Models (exc. '21 S/RH1250S) This complete headbolt kit features 12-point bolts and is built with pride in the U.S.A.MSRP: $102.95Now: $92.66Was: $149.95 -
Out of stock
Feuling - Red Cylinder Head Breathers fits '18 & Up M8 Harley Model
Feuling
$399.95Feuling - Red Cylinder Head Breathers fits '18 & Up M8 Harley Model These cylinder head breathers are constructed from billet 6061 aluminum with square surfaces, guaranteeing outstanding umbrella valve sealing and longer main breather exit nipples...$399.95 -
Out of stock
V-Twin - 11-2000 - Chrome Intake Valve
Crane
$9.86V-Twin - 11-2000 - Chrome Intake Valve Description Crane chrome intake valve Fits: FLT 1979-1983 FX 1971-1984 FXR 1982-1983 FL 1966-1984 Additional Information OEM No. 18074-66 UOM 1 -...$9.86 -
Out of stock
V-Twin - 11-1886 - Ampco 45 .004 Intake Valve Guide
Rowe
$11.86V-Twin - 11-1886 - Ampco 45 .004 Intake Valve GuideDescriptionRowe .004 intake valve guide is made of ampco 45 Fits:FX 1979-1984FLT 1979-1983FXR 1982-1983FL 1979-1984Additional Information UOM1 - EA ManufacturerRowe MaterialAmpco 45 OriginUSA Size...$11.86 -
Out of stock
V-Twin - 10-1957 - Panhead Cylinder Head Set with Valves
Motorshop
$1,430.38V-Twin - 10-1957 - Panhead Cylinder Head Set with Valves Description Cylinder heads are fully assembled with valves, springs and collars.V-Twin Motor Shop Ready Panheads with valves feature original contour castings with the added detail of the stock...$1,430.38 -
Out of stock
S&S Cycle - 900-1186 - Billet Head Breather Kit - Anodized Blue - M8
S&S Cycle
$299.95S&S Cycle - 900-1186 - Billet Head Breather Kit - Anodized Blue - M8Features6061 billet aluminum head breathers replace the OEM plastic partsDual O-ring for a better seal in the headUnique Labyrinth design to reduce oil pass-throughReduces emissions by...$299.95 -
Out of stock
V-Twin - 49-1350 - Knucklehead Bare Cylinder Head Set
Motortechnic
$2,140.40V-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$2,140.40 -
Out of stock
V-Twin - 49-0909 - Head Set Aluminum
V-Twin
$806.86V-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$806.86 -
Out of stock
V-Twin - 37-9370 - Head Bolt Hardware Kit
V-Twin
$142.24V-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...$142.24 -
Out of stock
V-Twin - 16-1508 - 45 W Reamer Pilot Tool
V-Twin Manufacturing
$258.87V-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$258.87 -
Out of stock
V-Twin - 16-1507 - 45 W Bushing Reamer Tool
V-Twin Manufacturing
$289.93V-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$289.93 -
Out of stock
V-Twin - 13-9194 - Valve Spring Kit
Motorshop
$89.95V-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...$89.95 -
Out of stock
V-Twin - 13-9175 - Sifton Valve Spring
Sifton
$54.87V-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$54.87 -
Out of stock
V-Twin - 13-0482 - Valve Spring Kit Black
Sifton
$17.47V-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...$17.47 -
Out of stock
V-Twin - 11-1775 - Cylinder Head Set With Rocker Assembly
Motorshop
$6,895.41V-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...$6,895.41 -
Out of stock
V-Twin - 11-1559 - 45 inch Valve Guide Set
V-Twin Manufacturing
$301.66V-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...$301.66 -
Out of stock
V-Twin - 11-1543 - Valve Keeper Pins
Eastern
$37.35V-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 OriginUSA$37.35 -
Out of stock
V-Twin - 11-1297 - Knucklehead Cylinder Head Set
Motorshop
$4,023.93V-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...$4,023.93 -
Out of stock
V-Twin - 11-1107 - 900/1000cc Nitrate Steel Exhaust Valve
Sifton
$69.94V-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...$69.94 -
Out of stock
V-Twin - 11-1106 - 1000cc Nitrate Steel Intake Valve
Sifton
$46.34V-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...$46.34 -
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 - 11-0977 - Kibblewhite Cast Iron .003 Exhaust Valve Guide
Kibblewhite
$19.94V-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 ...$19.94 -
Out of stock
V-Twin - 11-0864 - Cylinder Head Set With Rocker Assembly
Motorshop
$3,629.05V-Twin - 11-0864 - Cylinder Head Set With Rocker AssemblyDescriptionKnucklehead cylinder head set features original cast iron with natural finish. Head set includes valves, springs, collars, and guides with parkerized upper and lower valve cover sets...$3,629.05 -
Out of stock
V-Twin - 11-0863 - Chrome Shovelhead Top End Kit
V-Twin Manufacturing
$2,539.54V-Twin - 11-0863 - Chrome Shovelhead Top End KitDescriptionTop end kit includes pre fitted 80" cylinder set with 8:1 pistons, heads, chrome rocker boxes, cylinder base nuts, rocker box studs, nuts and top end gasket kit.Kit includes fully assembled late...$2,539.54 -
Out of stock
V-Twin - 11-0857 - Cylinder Head Set With Rocker Assembly
Motorshop
$4,338.65V-Twin - 11-0857 - Cylinder Head Set With Rocker AssemblyDescriptionKnucklehead cylinder head set features original cast iron with natural finish. Head set includes valves, springs, collars, polished rocker boxes and guides with parkerized upper and...$4,338.65 -
Out of stock
V-Twin - 11-0796 - Nitrate Valve and Spring Kit
Sifton
$149.28V-Twin - 11-0796 - Nitrate Valve and Spring KitDescriptionSifton valve and spring kit for Shovelhead models includes 2 intake and 2 exhaust valve with nitrate finish, complete spring set, keepers with upper and lower collars. Fits:FLT 1979-1983FX...$149.28 -
Out of stock
V-Twin - 11-0788 - Oversize Exhaust Valve Seat
Motorshop
$31.94V-Twin - 11-0788 - Oversize Exhaust Valve SeatDescriptionOversize exhaust valve seat is 1.713" X 1.379" X .400. Can be used with unleaded gas. Replacement size is actual size of seat. Fits:FXST 1984-1998FLT 1984-1998FXD 1991-1998FXR 1984-1994FLST...$31.94 -
Out of stock
V-Twin - 11-0724 - Cast Iron .002 Exhaust Valve Guide
Motorshop
$19.65V-Twin - 11-0724 - Cast Iron .002 Exhaust Valve GuideDescription.002 cast iron exhaust valve guideInner diameter is .3395-.3400. May have to be honed for final fit. Fits:XL 1957-1982Additional Information OEM No.18172-57B UOM1 - EA ...$19.65 -
Out of stock
V-Twin - 11-0723 - Cast Iron .001 Exhaust Valve Guide
Motorshop
$19.65V-Twin - 11-0723 - Cast Iron .001 Exhaust Valve GuideDescription.001 cast iron exhaust valve guideInner diameter is .3395-.3400. May have to be honed for final fit. Fits:XL 1957-1982Additional Information OEM No.18171-57B UOM1 - EA ...$19.65 -
Out of stock
V-Twin - 11-0659 - Oversize Exhaust Valve Seat
Motorshop
$33.94V-Twin - 11-0659 - Oversize Exhaust Valve SeatDescriptionOversize exhaust valve seat has a 1.405 port size. Can be used with unleaded gas. Replacement size is actual size of seat, which is supplied. Fits:XL 1957-1985Additional Information UOM1 - EA ...$33.94 -
Out of stock
V-Twin - 11-0643 - Oversize Intake Valve Seat
Motorshop
$33.94V-Twin - 11-0643 - Oversize Intake Valve SeatDescriptionOversize intake valve seat is 2-1/16" x 1.687 x 9/32". Can be used with unleaded gas. Replacement size is actual size of seat, which is supplied. Fits:XL 1970-1985Additional Information UOM1 - EA ...$33.94 -
Out of stock
V-Twin - 11-0642 - Oversize Intake Valve Seat
Motorshop
$33.94V-Twin - 11-0642 - Oversize Intake Valve SeatDescriptionOversize intake valve seat is 2" x 1.687 x 9/32". Can be used with unleaded gas. Replacement size is actual size of seat, which is supplied. Fits:XL 1957-1969Additional Information UOM1 - EA ...$33.94 -
Out of stock
V-Twin - 11-0285 - Upper Valve Collar Set Titanium Coated
Motorshop
$333.20V-Twin - 11-0285 - Upper Valve Collar Set Titanium CoatedDescriptionTitanium coated upper valve collar set for Evolution and TC-88 models.Set of four. Fits:FXD 1991-2004FXST 1984-2004FLST 1986-2004XL 1986-UPFXR 1984-1994Additional Information UOM1 - SET...$333.20 -
Out of stock
V-Twin - 10-1945 - 80 inch ULH Motor Top End
V-Twin Manufacturing
$2,118.98V-Twin - 10-1945 - 80 inch ULH Motor Top End Description 80" ULH motor top end kit includes fitted front and rear cylinders with standard piston and valve guides, rings and aluminum heads. Valves and spring not included. Fits: ULH...$2,118.98
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.