Cylinder Heads
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Out of stock
Kibblewhite - 20-21021 - Valve Guide - Intake - 0.4760" OD - M8
Kibblewhite
$26.89Kibblewhite - 20-21021 - Valve Guide - Intake - 0.4760" OD - M8FeaturesPrecision-machined from copper based C63000 nickel-aluminum bronzeCompatible with no-lead fuel and accept any type of valve-stem materialProvide maximum service with chromed valve...$26.89 -
Out of stock
Kibblewhite - 20-21000 - Beehive Spring Kit - 0.465" Lift - M8 | CVO
Kibblewhite
$313.38Kibblewhite - 20-21000 - Beehive Spring Kit - 0.465" Lift - M8 | CVOFeaturesProgressively wound springs using Kobe super-clean, chromium silicon(CrSi) based wire that is heat treated and shot peenedTight-tolerance, FEA-designed hardened steel Posi-Loc™...$313.38 -
Out of stock
Kibblewhite - 20-20905 - Valve - Intake - 1.990" - Oversize - Twin Cam
Kibblewhite
$41.12Kibblewhite - 20-20905 - Valve - Intake - 1.990" - Oversize - Twin CamFeaturesOne-piece stainless-steel, stellite-tipped valve is fortified by a special nitrided process with .002" depth and .0002" surface buildup to improve wear properties and reduce...$41.12 -
Out of stock
Kibblewhite - 20-20862M - Valve Guide - 0.5645" OD - Intake - Twin Cam | XL
Kibblewhite
$13.12Kibblewhite - 20-20862M - Valve Guide - 0.5645" OD - Intake - Twin Cam | XLFeaturesCan be easily reamed with a battery-operated or electric drill and finished with a high-quality ball honeManganese bronze guide material is softer than nickel aluminum...$13.12 -
Out of stock
Kibblewhite - 20-20776 - Valve - Exhaust
Kibblewhite
$31.01Kibblewhite - 20-20776 - Valve - ExhaustFeaturesSome Twin Cam heads using 7.0mm valves may crack in the port end of the valve guide bossThese valves have .005" oversize stems to re-establish the correct valve stem to valve guide clearance if the head has...$31.01 -
Out of stock
Kibblewhite - 20-23350 - Engine Valve Kit - 0.465" Lift - M8 '17-'24
Kibblewhite
$508.87Kibblewhite - 20-23350 - Engine Valve Kit - 0.465" Lift - M8 '17-'24 Features Kits include KPMI® or equivalent valve spring kit, a full set of Black Diamond™stainless steel standard size valves and are black nitride coated, H.T. (Heat...$508.87 -
Out of stock
Kibblewhite - 20-22900 - Valve Kit - 1.805" Intake/1.575" Exhaust - XL1200 '04-'17
Kibblewhite
$205.56Kibblewhite - 20-22900 - Valve Kit - 1.805" Intake/1.575" Exhaust - XL1200 '04-'17FeaturesAll valves are fortified by a special process to a depth of .002” with a surface buildup of .0002”This process improves wear properties, reduces friction and...$205.56 -
Out of stock
Kibblewhite - 20-21031M - Valve Guide - Exhaust - 0.4760" OD - M8
Kibblewhite
$15.10Kibblewhite - 20-21031M - Valve Guide - Exhaust - 0.4760" OD - M8FeaturesPrecision-machinedGuides can be easily reamed with a battery-operated or electric drill and finished with a high-quality ball honeShouldered for a positive stop for easy...$15.10 -
Out of stock
Kibblewhite - 20-21021M - Valve Guide - Intake - 0.4760" OD - M8
Kibblewhite
$15.10Kibblewhite - 20-21021M - Valve Guide - Intake - 0.4760" OD - M8FeaturesPrecision-machinedGuides can be easily reamed with a battery-operated or electric drill and finished with a high-quality ball honeShouldered for a positive stop for easy installation...$15.10 -
Out of stock
Kibblewhite - 20-2120 - Valve Guide - Intake - 0.5620" OD - Evolution Big Twin '84-'99
Kibblewhite
$31.71Kibblewhite - 20-2120 - Valve Guide - Intake - 0.5620" OD - Evolution Big Twin '84-'99FeaturesPrecision-machined from nickel bronzeNickel content of 5% produces superior resistance to wear, and the approximately 80% copper content delivers outstanding...$31.71 -
Out of stock
Jims - 1356 - Valve Spring Kit - Evolution - Big Twin
Jims
$112.95Jims - 1356 - Valve Spring Kit - Evolution - Big TwinFeaturesIncorporate an interference double-spring design with damper to control harmonicsEngineered for maximum performance in severe applications such as high compression and big-inch street motors0...$112.95 -
Out of stock
Jims - 1350K - Valve Spring Kit - Evolution - Big Twin
Jims
$228.91Jims - 1350K - Valve Spring Kit - Evolution - Big TwinFeaturesIncorporate an interference double-spring design with a damper to control harmonicsEngineered for maximum performance in severe applications such as high compression and big-inch street...$228.91 -
Out of stock
Gardner-Westcott - A-61-110 - Head Bolt Kit - Chrome
Gardner-Westcott
$128.95Gardner-Westcott - A-61-110 - Head Bolt Kit - ChromeFeaturesInclude four long and four short headboltsMade in the U.S.A.SpecsRiding StyleStreetFastener Type12-Point FlangeUnitsKitBase FinishChromeApplicationHead BoltBase ColorSilverProduct NameBolt...$128.95 -
Out of stock
Feuling Parts - 1221 - Valve Spring Retainer Kit - Titanium - Buell | Twin Cam | XL
Feuling
$199.95Feuling Parts - 1221 - Valve Spring Retainer Kit - Titanium - Buell | Twin Cam | XLFeaturesAllows installation of Screamin Eagle performance Beehive valve-spring with 0.725" top ID onto the early style 5/16" valve stem cylinder headsCan be used on...$199.95 -
Out of stock
Cometic - C10167-045 - Cylinder Head Gasket - 4.145" - M8
Cometic
$61.90Cometic - C10167-045 - Cylinder Head Gasket - 4.145" - 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 -
Out of stock
Cometic - C10167-036 - Cylinder Head Gasket - 4.145" - M8
Cometic
$61.90Cometic - C10167-036 - Cylinder Head Gasket - 4.145" - 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 -
Out of stock
Cometic - C10167-030 - Cylinder Head Gasket - 4.145" - M8
Cometic
$61.90Cometic - C10167-030 - Cylinder Head Gasket - 4.145" - 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 -
Out of stock
Cometic - C10167 - Cylinder Head Gasket - 4.145" - M8
Cometic
$61.90Cometic - C10167 - Cylinder Head Gasket - 4.145" - 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 -
Out of stock
Cometic - C10166 - Cylinder Head Gasket - 4.095" - M8
Cometic
$61.90Cometic - C10166 - Cylinder Head Gasket - 4.095" - 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 -
Out of stock
Cometic - C10164-030 - Cylinder Head Gasket - 3.937" - M8
Cometic
$61.90Cometic - C10164-030 - Cylinder Head Gasket - 3.937" - 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 -
Out of stock
Cometic - C10191 - Cylinder Head Gasket - 4.250"
Cometic
$61.90Cometic - C10191 - Cylinder Head Gasket - 4.250"FeaturesQuality 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 (Load...$61.90 -
Out of stock
Cometic - C10182 - Cylinder Head Gasket - 4.320" - M8
Cometic
$61.90Cometic - C10182 - Cylinder Head Gasket - 4.320" - 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 -
Out of stock
Cometic - C10169-030 - Cylinder Head Gasket - 4.220" - M8
Cometic
$61.90Cometic - C10169-030 - Cylinder Head Gasket - 4.220" - 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 -
Out of stock
Comp Cams - 9709-KIT - Spring Kit - .650" - Twin Cam
Comp Cams
$199.95Comp Cams - 9709-KIT - Spring Kit - .650" - Twin CamFeaturesBeehive™ Valve Spring Kits designed as drop-in performance valve train upgradesBeehive valve springs deliver a host of well-documented benefits over conventional cylindrical valve...$199.95 -
Out of stock
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 -
Out of stock
Jims - 2240 Head Holder Guide Tool '48-'04 Big Twin, '57-'03 Sportster & Some SE CVO Twin Cam Models (5/16” Valve Guides)
Jims
$943.95Jims - 2240 Head Holder Guide Tool '48-'04 Big Twin, '57-'03 Sportster & Some SE CVO Twin Cam Models (5/16” Valve Guides) Features: Adapters are supported by a stand that makes it easy to press valve guides in and out A special guide...$943.95 -
Out of stock
Colony - 9766-4 Acorn Type Tappet Block Screw Kit fits '95-'03 Sportster Models
Colony Machine
$9.86Colony - 9766-4 Acorn Type Tappet Block Screw Kit fits '95-'03 Sportster Models Acorn type tappet block screw kit. Fitment: XL 1995-2003$9.86 -
Out of stock
V-Twin - Cadmium Headbolt Washer fits '37-'47 UL, '29-'52 WL, '29-'73 G Models
V-Twin Mfg
$46.00V-Twin - Cadmium Headbolt Washer fits '37-'47 UL, '29-'52 WL, '29-'73 G Models Headbolt washer constructed of aluminum features a cadium plated finish. Fitment: UL 1937-1947 WL 1929-1952 G 1929-1973$46.00 -
Out of stock
Colony - Head Bolt Set fits '86-'91 Sportster Models (OEM #16478-85A, 16480-85A)
Colony Machine
$86.95Colony - Head Bolt Set fits '86-'91 Sportster Models (OEM #16478-85A, 16480-85A) Features: 12-point replacement headbolts Made in the U.S.A. Fitment 1992 Harley-Davidson Dyna Daytona FXDB - - 1991 Harley-Davidson Dyna Sturgis...$86.95 -
Out of stock
Colony - Head Bolt Kit fits '57-'72 Sportster Models (OEM #4714W)
Colony Machine
$69.95Colony - Head Bolt Kit fits '57-'72 Sportster Models (OEM #4714W) Features: Hardened to OEM specifications to prevent stretching Made in the U.S.A. Fitment 1972 Harley-Davidson Sportster 1000 XLH - - 1972 Harley-Davidson Sportster 1000 XLCH - - ...$69.95 -
Out of stock
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 -
Out of stock
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 -
Out of stock
S&S Cycle - Super Stock™ Dual Spark Plug Cylinder Heads - fits '79-'84 (Rubber Band Intake) 3 ⅜" Bore Cylinders
S&S Cycle
$1,886.95S&S Cycle - Super Stock™ Dual Spark Plug Cylinder Heads - fits '79-'84 (Rubber Band Intake) 3 ⅜" Bore Cylinders Heads come completely assembled with valve seats, valves, guides, seals, .590" lift valve springs, collars and valve...$1,886.95 -
Out of stock
S&S Cycle - Silver Powdercoat 89cc Super Stock™ 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 stock
S&S Cycle - Silver Powdercoat 89cc Super Stock™ Cylinder Heads fits '06-'17 Twin Cam Models (Exc. Twin Cooled Motors)
S&S Cycle
$1,995.95S&S Cycle - Silver Powdercoat 89cc Super Stock™ Cylinder Heads fits '06-'17 Twin Cam Models (Exc. Twin Cooled Motors) S&S Cycle's 89cc Super Stock™ Cylinder Heads' high port flow creates excellent performance after initial...$1,995.95
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.