Cylinder Heads
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V-Twin - 37-8799 - Cylinder Headbolt Cover Set Chrome
V-Twin Mfg
$30.20V-Twin - 37-8799 - Cylinder Headbolt Cover Set ChromeDescription4 piece cylinder headbolt cover set featuring a chrome finish. Fits:FXD 1991-2017FLT 1986-2017XL 1986-UPFXST 1986-2017FXR 1986-1994FLST...$30.20 -
V-Twin - 37-4050 - Head Screw - Fits 1971-1984 Harley-Davidson FX, 1941-1984 FL
V-Twin Mfg
$14.16Head screw, 10/24 X 3/8 Fits: FX 1971-1984 FL 1941-1984 Additional Information UOM 10 - PK Manu$14.16 -
V-Twin - 37-1209 - Head Bolt Cover Set Chrome
V-Twin Mfg
MSRP: $17.64$17.46V-Twin - 37-1209 - Head Bolt Cover Set ChromeDescriptionChrome head bolt cover set.Sold as a set of 4. Fits:FLT 1999-2016FXST 1999-UPFLST 1999-UPFXD 1999-2017Additional InformationMSRP: $17.64$17.46 -
V-Twin - 3648-16 - Stock Head Bolt Kit Cadmium Plated
Colony Machine
MSRP: $56.57$54.98V-Twin - 3648-16 - Stock Head Bolt Kit Cadmium PlatedDescriptionStock head bolt kit features a cadmium plated finish. Fits:XLH 1967-1972XL 1957-1972XLCH 1971-1972Additional InformationMSRP: $56.57$54.98 -
V-Twin - 3619-1 - Cylinder Head Bracket Parkerized
Colony Machine
$64.02V-Twin - 3619-1 - Cylinder Head Bracket ParkerizedDescriptionCast iron cylinder head bracket features a parkerized finish. Fits:G 1932-1950WL 1932-1950Additional Information$64.02 -
V-Twin - 3127-20 - Parkerized Headbolt Kit
Colony Machine
$98.68V-Twin - 3127-20 - Parkerized Headbolt KitDescriptionParkerized plain headbolt kit includes washers. Fits:FL 1940-1947Additional Information$98.68 -
V-Twin - 2947-1 - Aluminum Cylinder Head Bracket Chrome
Colony Machine
MSRP: $49.62$48.22V-Twin - 2947-1 - Aluminum Cylinder Head Bracket ChromeDescriptionAluminum cylinder head bracket features a chrome finish. Fits:WL 1936-1952G 1936-1973Additional InformationMSRP: $49.62$48.22 -
V-Twin - 2946-1 - Aluminum Cylinder Head Bracket Cadmium
Colony Machine
MSRP: $43.08$41.87V-Twin - 2946-1 - Aluminum Cylinder Head Bracket CadmiumDescriptionAluminum cylinder head bracket features a cadmium finish. Fits:WL 1936-1952G 1936-1973Additional InformationMSRP: $43.08$41.87 -
V-Twin - 2945-1 - Aluminum Cylinder Head Bracket Parkerized
Colony Machine
MSRP: $43.08$41.87V-Twin - 2945-1 - Aluminum Cylinder Head Bracket ParkerizedDescriptionAluminum cylinder head bracket features a parkerized finish. Fits:WL 1936-1952G 1936-1973Additional InformationMSRP: $43.08$41.87 -
V-Twin - 2432-18 - Head Bolt Washer Kit Parkerized
Colony Machine
MSRP: $51.57$50.12V-Twin - 2432-18 - Head Bolt Washer Kit ParkerizedDescriptionParkerized early style tapered head bolt washer kit used on Flatheads with aluminum heads. Fits:UL 1939-1948W 1939-1952Additional...MSRP: $51.57$50.12 -
V-Twin - 2262-4 - Cylinder Head Bolt Cover Set Pike Type
Colony Machine
MSRP: $58.65$57.00V-Twin - 2262-4 - Cylinder Head Bolt Cover Set Pike TypeDescriptionPike type cylinder head bolt cover set. Fits:FXR 1986-1994XL 1985-2003FLST 1999-2017FXST 1999-2017FXD 1999-2017FLT...MSRP: $58.65$57.00 -
V-Twin - 2183-16 - Head Stud Set Parkerized
Colony Machine
MSRP: $66.00$64.15V-Twin - 2183-16 - Head Stud Set ParkerizedDescriptionParkerized head stud set. Fits:WL 1929-1950Additional Information OEM No.MSRP: $66.00$64.15
V-Twin - 2152-36 - Cylinder Head Bolt Nut Kit Parkerized
Colony Machine
MSRP: $43.92$42.68V-Twin - 2152-36 - Cylinder Head Bolt Nut Kit ParkerizedDescriptionCylinder head bolt nut kit with a parkerized finish. Fits:WL 1929-1941Additional Information <MSRP: $43.92$42.68
V-Twin - 2055-1 - Headbolt Chrome
Colony Machine
MSRP: $11.86$10.67V-Twin - 2055-1 - Headbolt ChromeDescriptionChrome head bolt for alternator mount. Fits:G 1965-1973Additional Information OEM No.MSRP: $11.86$10.67
V-Twin - 2024-4 - Engine Cylinder Head Bolt Cover Chrome
Colony Machine
MSRP: $56.57$54.98V-Twin - 2024-4 - Engine Cylinder Head Bolt Cover ChromeDescriptionChrome engine cylinder head bolt cover.Sold as a set of 4. Fits:FXR 1986-1994XL 1985-UPFLST 1999-2017FXST 1999-2017FXD 1999-2017FLT...MSRP: $56.57$54.98
V-Twin - 16-1019 - Headbolt Wrench Tool
Motorshop
MSRP: $19.86$19.66V-Twin - 16-1019 - Headbolt Wrench ToolDescriptionHeadbolt wrench tool with angled handle is for 3/8" bolts. Fits:WL 1930-1936G 1936-1973U 1936-1948W 1936-1952Additional InformationMSRP: $19.86$19.66
V-Twin - 16-0531 - Valve Seat Wheel
V-Twin Mfg
$37.28V-Twin - 16-0531 - Valve Seat WheelDescriptionValve seat wheel is 1.875"-45 . Fits:Custom applicationAdditional Information UOM$37.28
V-Twin - 16-0416 - Headbolt Tap Tool
Motorshop
$114.68V-Twin - 16-0416 - Headbolt Tap ToolDescriptionHeadbolt tap tool Fits:UL 1937-1948WL 1929-1952G 1930-1973VL 1930-1936Additional Information$114.68
V-Twin - 16-0044 - Sav-A-Thread Tool Kit
Helicoil
MSRP: $78.28$76.41V-Twin - 16-0044 - Sav-A-Thread Tool KitDescriptionHeli-coil sav-a-thread tool kit for all spark plugs includes 14mm top, insertion tool and three inserts.Kit repairs spark plug holes for 14mm short...MSRP: $78.28$76.41
V-Twin - 16-0043 - Sav-A-Thread Tool 1/2 inch Insert
Helicoil
MSRP: $13.94$12.54V-Twin - 16-0043 - Sav-A-Thread Tool 1/2 inch InsertDescriptionHeli-coil sav-a-thread tool spark plug insert.MSRP: $13.94$12.54
V-Twin - 16-0042 - Sav-A-Thread Tool 3/4 inch Insert
Helicoil
MSRP: $13.94$12.54V-Twin - 16-0042 - Sav-A-Thread Tool 3/4 inch InsertDescriptionSav-a-thread tool 3/4" spark plug insert.MSRP: $13.94$12.54
V-Twin - 13-9523 - Valve Spring Set - Fits 1936-1940 Harley-Davidson EL, 1941-1947 FL
V-Twin Mfg
$64.02Replica type valve spring set has 4 inner and 4 outer springs for Knuckleheads.Spring has an outer diameter that measures 1.638". Spring wire manufactured in Japan. Fits:EL 1936-1940FL...$64.02
V-Twin - 13-9251 - High Lift Valve Springs
Andrews
MSRP: $75.22$67.69V-Twin - 13-9251 - High Lift Valve SpringsDescriptionAndrews high lift valve springs .550+, no machining required . Includes 4 inner and 4 outer springs.Sold as a 4 piece set. Fits:FLT 1999-2016XL...MSRP: $75.22$67.69
V-Twin - 13-9226 - Valve Spring Kit
S&S Cycle
$321.00V-Twin - 13-9226 - Valve Spring KitDescriptionS&S valve spring kit is to be used with stock style guides and lower spring collars, 3/8" valves and stock keepers. Kit includes top collar and springs...$321.00
V-Twin - 13-9211 - Sifton Valve Spring Kit
Motorshop
$133.31V-Twin - 13-9211 - Sifton Valve Spring KitDescriptionSifton valve spring kit includes all springs, collars and keepers necessary. Fits:XL 1957-1981Additional Information$133.31
V-Twin - 13-9207 - Sifton Valve Spring Kit
Eastern Motorcycle Parts
MSRP: $79.08$77.10V-Twin - 13-9207 - Sifton Valve Spring KitDescriptionSifton valve spring kit includes all springs, collars and keepers necessary. Fits:XL 1983-1985Additional InformationMSRP: $79.08$77.10
V-Twin - 13-9196 - Sifton Valve Spring Kit
Eastern Motorcycle Parts
MSRP: $92.23$89.92V-Twin - 13-9196 - Sifton Valve Spring KitDescriptionSifton valve spring kit includes all springs, collars and keepers necessary. Fits:FXST 1984-1998XL 1986-UPFLT 1986-1998FXD 1991-1998FXR...MSRP: $92.23$89.92
V-Twin - 13-9195 - Valve Spring Kit
Motorshop
$94.99V-Twin - 13-9195 - Valve Spring KitDescriptionValve spring kit includes all springs, collars and keepers necessary for application. Fits:FXR 1982-1983FLT 1981-1983FL 1981-1984FX 1981-1984Additional...$94.99
V-Twin - 13-9192 - Valve Spring Kit Chrome
Sifton
$110.50V-Twin - 13-9192 - Valve Spring Kit ChromeDescriptionSifton chrome valve spring kit includes four outer springs, four inner springs, four lower collars, four upper collars, and four pair of keepers...$110.50
V-Twin - 13-2210 - Valve Spring Kit
Kibblewhite
MSRP: $161.86$152.95V-Twin - 13-2210 - Valve Spring KitDescriptionKibblewhite valve spring kit includes springs, keepers, retainer, and lower collars. For 160lb seat pressure up to .460" valve travel.May require R model...MSRP: $161.86$152.95
V-Twin - 13-2151 - Beehive Valve Spring Kit
Kibblewhite
MSRP: $189.97$179.52V-Twin - 13-2151 - Beehive Valve Spring KitDescriptionBeehive valve spring kit includes .660" lift with steel retainers. Fits:FLST 2005-2017FXD 2005-2017FLT 2005-2016FXST 2005-2017Additional...MSRP: $189.97$179.52
V-Twin - 13-2150 - Beehive Valve Spring Kit
Kibblewhite
MSRP: $185.69$175.47V-Twin - 13-2150 - Beehive Valve Spring KitDescriptionBeehive valve spring kit includes .660" lift with steel retainers. Fits:FXST 1984-2004FXD 1984-2004FLT 1984-2004FLST 1984-2004Additional...MSRP: $185.69$175.47
V-Twin - 13-2131 - Beehive Valve Spring Kit
Kibblewhite
MSRP: $174.26$164.67V-Twin - 13-2131 - Beehive Valve Spring KitDescriptionBeehive valve spring kit includes .610" lift with steel retainers. Fits:FLST 2005-2017FXD 2005-2017FLT 2005-2016FXST 2005-2017Additional...MSRP: $174.26$164.67
V-Twin - 13-2130 - Beehive Valve Spring Kit
Kibblewhite
MSRP: $174.26$164.67V-Twin - 13-2130 - Beehive Valve Spring KitDescriptionBeehive valve spring kit includes .610" lift with steel retainers. Fits:FXST 1984-2004FXD 1984-2004FLT 1984-2004FLST 1984-2004Additional...MSRP: $174.26$164.67
V-Twin - 13-2115 - Kibblewhite Valve Spring Kit
Kibblewhite
MSRP: $176.61$166.90V-Twin - 13-2115 - Kibblewhite Valve Spring KitDescriptionKibblewhite valve spring kit is 160lb seat pressure up to .600" valve travel with titanium retainers. Kit includes springs, keepers and...MSRP: $176.61$166.90
V-Twin - 13-2110 - Kibblewhite Valve Spring Kit
Kibblewhite
MSRP: $147.10$139.00V-Twin - 13-2110 - Kibblewhite Valve Spring KitDescriptionKibblewhite lightweight valve spring kit is 160lb seat pressure, up to .600" valve travel. Kit includes springs, keepers and retainers.Lower...MSRP: $147.10$139.00
V-Twin - 13-2088 - M8 Valve Spring Kit with Titanium Retainers
Kibblewhite
MSRP: $387.81$373.07V-Twin - 13-2088 - M8 Valve Spring Kit with Titanium RetainersDescriptionValve spring kit is for M8 models. Kit includes beehive style with ovate wire and titanium retainers with a .550 lift...MSRP: $387.81$373.07
V-Twin - 13-2087 - M8 Valve Spring Kit with Steel Retainers
Kibblewhite
MSRP: $247.00$233.41V-Twin - 13-2087 - M8 Valve Spring Kit with Steel RetainersDescriptionValve spring kit is for M8 models. Kit includes beehive style with ovate wire and steel retainers with a 4.65 lift. Fits:FLT...MSRP: $247.00$233.41
V-Twin - 13-2086 - M8 Valve Spring Kit with Titanium Retainers
Kibblewhite
MSRP: $292.05$280.95V-Twin - 13-2086 - M8 Valve Spring Kit with Titanium RetainersDescriptionValve spring kit is for M8 models. Kit includes beehive style with ovate wire and titanium retainers with a 4.65 lift...MSRP: $292.05$280.95
V-Twin - 13-2085 - Kibblewhite Valve Spring Kit
Kibblewhite
MSRP: $275.63$260.46V-Twin - 13-2085 - Kibblewhite Valve Spring KitDescriptionKibblewhite valve spring kit includes inner and outer valve spring, upper and lower valve spring collars, shims and keepers.Will work with up...MSRP: $275.63$260.46Harley 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.