Cylinder Heads
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Cometic - C10168 - Cylinder Head Gasket - 4.205" - M8
Cometic
$61.90Cometic - C10168 - Cylinder Head Gasket - 4.205" - M8FeaturesQuality materials developed for maximum performance tolerances and longevityMLS (Mutli-Layer Steel) head gaskets promote an even torque load across the gasket sealing surface utilizing LCE...$61.90 -
Andrews - 294150 - High-Lift Springs
Andrews
$65.95Andrews - 294150 - High-Lift SpringsFeaturesAccommodates cam lifts of .550"+Installation does not require machining of headsKit includes four inner and four outer springsFor use with titanium upper-spring collarsCollars sold separatelyMade in the U.S.A...$65.95 -
Andrews - 273120 - Valve Spring Collars
Andrews
$51.95Andrews - 273120 - Valve Spring CollarsFeaturesSimilar to stock 80-style parts, but lower profile for easier installation of higher lift camsRequired parts if you use 80-style valve guides that utilize "K" line stem sealsHeat-treated steelFor 74" and 80"...$51.95 -
Andrews - 276150 - Medium-Lift Upper Spring Collar Set
Andrews
$74.95Andrews - 276150 - Medium-Lift Upper Spring Collar SetFeaturesIntended to work with stock springs and add approximately .060" spring travel with no other modifications on 66-84 74" and 80" motorsThe easy way to install B or #2 cams in stock headsMade in...$74.95 -
Andrews - 272110 - High-Lift Valve Springs
Andrews
$67.95Andrews - 272110 - High-Lift Valve SpringsFeaturesProvide correct spring force for any of our performance cams when used in 74" and 80" motorsMax lift; installation does not require complicated machining but does require proper valvetrain setupMade in...$67.95 -
Andrews - 271100 - High-Lift Upper Spring Collars
Andrews
$53.95Andrews - 271100 - High-Lift Upper Spring CollarsFeaturesCams with .600 lift can easily be accommodated when used with high-lift springsMade from T-6 aluminum, collars are lightweight, hard-coated and very strongFor 74" and 80" motorsMade in the U.S.A...$53.95 -
Andrews - 277160 - Low-Profile Lower Spring Collars - XL
Andrews
$37.95Andrews - 277160 - Low-Profile Lower Spring Collars - XLFeaturesSimilar to the late H-D collarsWill provide .060" more spring travel than stock collarsMade in the U.S.A.SpecsProduct NameLower Spring CollarStyleLow-ProfileUnitsSet of 4Riding...$37.95 -
Andrews - 293115 - Valve Spring Collars - Big Twin
Andrews
$89.95Andrews - 293115 - Valve Spring Collars - Big TwinFeaturesProvide .050" more spring travel than stockStronger and lighter than stockUse stock keepersMade in the U.S.A.SpecsRiding StyleStreetUnits4 PackProduct NameSpring...$89.95 -
Jims - 937 7mm Valve Guide Remover fits '05-'17 Twin Cam, '04-'20 Sportster & '04-'09 Buell Models (Except 1125R)
Jims
$96.95Jims - 937 7mm Valve Guide Remover fits '05-'17 Twin Cam, '04-'20 Sportster & '04-'09 Buell Models (Except 1125R) Features: Available from JIMS to allow the proper removal or installation of shoulderless valve guides as well as valve seals Made...$96.95 -
Jims - 938 7mm Valve Guide Installer fits '05-'17 Twin Cam, '04-'20 Sportster & '04-'09 Buell Models (Except 1125CR)
Jims
$64.95Jims - 938 7mm Valve Guide Installer fits '05-'17 Twin Cam, '04-'20 Sportster & '04-'09 Buell Models (Except 1125CR) Features: Available from JIMS to allow the proper removal or installation of shoulderless valve guides as well as valve...$64.95 -
Jims - 5828 Cylinder Head Holder Tool fits '17-'22 M-Eight & All Twin Cam Models
Jims
$89.95Jims - 5828 Cylinder Head Holder Tool fits '17-'22 M-Eight & All Twin Cam Models Features: Allows you to easily position head for all types of work Use to hold head in vice through spark plug hole For use with Milwaukee Eight engine series Has...$89.95 -
Jims - 1169 Compression Release Valve Installation Kit fits Twin Cam Models
Jims
$597.95Jims - 1169 Compression Release Valve Installation Kit fits Twin Cam Models Features: Installation kit includes fixture, drill bit, spot face bit and thread-tapping tool Simply drill, spot face, tap and install compression release valves Works on...$597.95 -
Jims - 2392 Head Bolt Torque Gauge fits all Twin Cam & Evolution Engines Models
Jims
$28.95Jims - 2392 Head Bolt Torque Gauge fits all Twin Cam & Evolution Engines Models Features: This accurate gauge allows the measuring of 90° when tightening head bolts Torquing sequence laser engraved on gauge, with instructions Works on all...$28.95 -
S&S Cycle - Compression Release Hole Plug
S&S Cycle
$24.95S&S Cycle - Compression Release Hole Plug Features: Not for use on OEM heads Made in the U.S.A. Fitment 2016-2017 Harley-Davidson Fat Boy S FLSTFBS - - 2016-2017 Harley-Davidson Softail Slim S...$24.95 -
Colony - 9211-16 Chrome Headbolt Kit fits '73-'85 Sportster Models
Colony Machine
$65.92Colony - 9211-16 Chrome Headbolt Kit fits '73-'85 Sportster Models Chrome headbolt kit. Fitment: XL 1973-1985 Measurements: End to End: 3-7/8"$65.92 -
Colony - 9641-16 Cadmium Headbolt Kit fits '52-'56 K Model
Colony Machine
$111.38Colony - 9641-16 Cadmium Headbolt Kit fits '52-'56 K Model Cadmium headbolt kit without washers Fitment: K 1952-1956$111.38 -
Colony - 9643-16 Cadmium Headbolt Kit fits '54-'56 K Model
Colony Machine
$111.38Colony - 9643-16 Cadmium Headbolt Kit fits '54-'56 K Model Cadmium headbolt kit without washers. Fitment: K 1954-1956$111.38 -
Colony - 9649-5 Speedometer Cable Clamp fits '39-'48 UL Model (OEM #67086-39)
Colony Machine
$20.80Colony - 9649-5 Speedometer Cable Clamp fits '39-'48 UL Model (OEM #67086-39) Speedometer Cable Clamp Fitment: UL 1939-1948$20.80 -
Colony - 9650-1 Speedometer Cable Clamp fits '52-'56 FL Model (OEM #67075-52)
Colony Machine
$16.98Colony - 9650-1 Speedometer Cable Clamp fits '52-'56 FL Model (OEM #67075-52) Speedometer Cable Clamp Fitment: FL 1952-1956$16.98 -
Colony - 12-1804 45" Head Stud Washer Set fits '29-'35 DL Model (OEM #6395)
Colony Machine
$36.96Colony - 12-1804 45" Head Stud Washer Set fits '29-'35 DL Model (OEM #6395) 45" head stud washer set measures 3/8" x 13/16" x 1/16". Sold as a 14 piece set Fitment: DL 1929-1935$36.96 -
Colony - 3515-4 Cylinder Head Bolt Spacers fits '52-'53 K Model (OEM #6860-52)
Colony Machine
$43.15Colony - 3515-4 Cylinder Head Bolt Spacers fits '52-'53 K Model (OEM #6860-52) Cadmium plated cylinder head bolt machined spacers fit between cylinder heads and motor mount. Sold as a 4 piece set Fitment: K 1952-1953 Measurements: Height:...$43.15 -
Colony - 3516-4 Cylinder Head Bolt Spacers fits '54-'56 KH Model (OEM #16860-54)
Colony Machine
$39.02Colony - 3516-4 Cylinder Head Bolt Spacers fits '54-'56 KH Model (OEM #16860-54) Cadmium plated cylinder head bolt machined spacers fit between cylinder heads and motor mount. Sold as a set of 4 Fitment: KH 1954-1956 Measurements: Height:...$39.02 -
Colony - 9704-10 Parkerized Cylinder Headbolt Washer Set fits '71-'84 FX, '48-'84 FL Models
Colony Machine
$22.60Colony - 9704-10 Parkerized Cylinder Headbolt Washer Set fits '71-'84 FX, '48-'84 FL Models Cylinder headbolt washer set with a parkerized finish Fitment: FX 1971-1984 FL 1948-1984$22.60 -
Colony - 9705-18-45 Parkerized Headbolt Kit fits '29-'52 WL, '29-'73 G Models
Colony Machine
$94.95Colony - 9705-18-45 Parkerized Headbolt Kit fits '29-'52 WL, '29-'73 G Models Parkerized headbolt kit with aluminum heads. Order washers separately Fitment: WL 1929-1952 G 1929-1973$94.95 -
Colony - 9748-16 Allen Type Headbolt Kit fits '73-'85 Sportster Models
Colony Machine
$58.35Colony - 9748-16 Allen Type Headbolt Kit fits '73-'85 Sportster Models Allen type headbolt kit. Fitment: XL 1973-1985$58.35 -
Colony - 9759-4 Allen Type Tappet Block Screw Kit fits '91-'94 Sportster Models
Colony Machine
$13.86Colony - 9759-4 Allen Type Tappet Block Screw Kit fits '91-'94 Sportster Models Tappet block allen type screw kit. Fitment: XL 1991-1994$13.86 -
Colony - 9761-4 Kick Starter Trip Bolt and Nut Kit fits '41-'52 WL, '41-'63 G Models (OEM #33456-26)
Colony Machine
$30.85Colony - 9761-4 Kick Starter Trip Bolt and Nut Kit fits '41-'52 WL, '41-'63 G Models (OEM #33456-26) Trip bolt and nut kit for kick starter on side valve models Fitment: WL 1941-1952 G 1941-1963 Measurements: Length: 1-1/16" Thread: 1/4"-24$30.85 -
Colony - 9889-16 Cadmium Headbolt Kit fits '51-'73 G, '51-'52 WL Models (OEM #16809-40)
Colony Machine
$93.35Colony - 9889-16 Cadmium Headbolt Kit fits '51-'73 G, '51-'52 WL Models (OEM #16809-40) Cadmium headbolt kit, stock for side valve models Fitment: G 1951-1973 WL 1951-1952$93.35 -
V-Twin - Cylinder Head Set with Chrome Rocker Box fits '78-'84 FL/FX Models
V-Twin Manufacturing
$2,378.75V-Twin - Cylinder Head Set with Chrome Rocker Box fits '78-'84 FL/FX Models Set is assembled with cast iron guides, valve stem seals, chrome rocker box and nitrated valves. For use on 74" or 80" models with Shovelhead barrels Fitment: FL...$2,378.75 -
Colony - 7711-18 Cadmium Cylinder Headbolt fits '31-'36 V, '37-'48 U Models
Colony Machine
$104.92Colony - 7711-18 Cadmium Cylinder Headbolt fits '31-'36 V, '37-'48 U Models Cadmium cylinder headbolt for use on 74" and 80" Side Valve motors with aluminum heads Fitment: V 1931-1936 U 1937-1948$104.92 -
Colony - 7711-18-45 Cadmium Headbolt fits '29-'52 WL, '29-'73 G Models
Colony Machine
$95.71Colony - 7711-18-45 Cadmium Headbolt fits '29-'52 WL, '29-'73 G Models Cadmium headbolt, stock with aluminum heads for 45" side valve models Order washers separately Fitment: WL 1929-1952 G 1929-1973$95.71 -
Colony - 7712-36 Cadmium Headbolt fits '29-'52 WL, '29-'73 G Models
Colony Machine
$103.43Colony - 7712-36 Cadmium Headbolt fits '29-'52 WL, '29-'73 G Models Cadmium headbolt for side valve models. Fitment: WL 1929-1952 G 1929-1973$103.43 -
Colony - 7713-20 Cadmium Stock 61" Cylinder Head Bolt fits '36-'39 EL Model
Colony Machine
$75.40Colony - 7713-20 Cadmium Stock 61" Cylinder Head Bolt fits '36-'39 EL Model Cadmium 61" cylinder head bolt Fitment: EL 1936-1939$75.40 -
Colony - 7714-20 Cadmium Stock Cylinder Head Bolt fits '40-'47 FL Model
Colony Machine
$75.28Colony - 7714-20 Cadmium Stock Cylinder Head Bolt fits '40-'47 FL Model Cadmium stock cylinder head bolt Fitment: FL 1940-1947$75.28 -
Colony - Head Bolt Kit fits '48-'84 Big Twin Models (OEM #16814-40, 6469)
Colony Machine
$85.95Colony - Head Bolt Kit fits '48-'84 Big Twin Models (OEM #16814-40, 6469) Features: Hardened to OEM specifications to prevent stretching Made in the U.S.A. Fitment 1977 Harley-Davidson 1200 Low Rider...$85.95 -
Feuling - Headbolt Kit fits '17-'22 M8 Models (3.125" Under Head Length)
Feuling
$399.95Feuling - Headbolt Kit fits '17-'22 M8 Models (3.125" Under Head Length) This kit features wide underhead flange bolts and hardened chamfered washers that provide even load distribution for the utmost surface sealing to prevent leaks. There are...$399.95 -
S&S Cycle - Retro Top-End Conversion Kit for 3.625" Bore Cylinders fits '66-'84 Shovelhead Engines
S&S Cycle
$4,499.95S&S Cycle - Retro Top-End Conversion Kit for 3.625" Bore Cylinders fits '66-'84 Shovelhead Engines Your Shovelhead will achieve the ultimate blast-from-the-past appearance of a Panhead with this Retro Top-End Conversion Kit from S&S Cycle! It...$4,499.95 -
S&S Cycle - Retro Top-End Conversion Kit for Stock Bore Cylinders fits '66-'84 Shovelhead Engines
S&S Cycle
$3,995.95S&S Cycle - Retro Top-End Conversion Kit for Stock Bore Cylinders fits '66-'84 Shovelhead Engines Your Shovelhead will achieve the ultimate blast-from-the-past appearance of a Panhead with this Retro Top-End Conversion Kit from S&S Cycle! It...$3,995.95 -
S&S Cycle - Super Stock™ '66-'78 Cylinder Heads - fits 3-5/8" Bore Cylinders
S&S Cycle
MSRP: $1,899.95$1,895.95S&S Cycle - Super Stock™ '66-'78 Cylinder Heads - fits 3-5/8" Bore Cylinders Features: Heads come completely assembled with valve seats, valves, guides, seals, .590" lift valve springs, collars and valve keepers Complete kits also include...MSRP: $1,899.95$1,895.95 -
S&S Cycle - Wrinkle Black Powdercoat 91cc Super Stock™ Cylinder Heads fits '06-'17 Twin Cam Models (Exc. Twin Cooled Motors)
S&S Cycle
$1,795.95S&S Cycle - Wrinkle Black Powdercoat 91cc Super Stock™ Cylinder Heads fits '06-'17 Twin Cam Models (Exc. Twin Cooled Motors) S&S Cycle's 91cc Super Stock™ Cylinder Heads' high port flow creates excellent performance after initial...$1,795.95
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.