Cylinder Heads
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Out of stock
Kibblewhite - 20-21600 - Valve Spring Kit - 0.675" Lift - Buell | Twin Cam | XL
Kibblewhite
$219.39Kibblewhite - 20-21600 - Valve Spring Kit - 0.675" Lift - Buell | Twin Cam | XLFeaturesDesigned for its specific application, taking into account several critical parameters including; cam profiles, harmonics, natural frequency of the springs, valvetrain...$219.39 -
Out of stock
Kibblewhite - 20-21030M - Valve Guide - Exhaust - 0.4750" OD - M8
Kibblewhite
$15.10Kibblewhite - 20-21030M - Valve Guide - Exhaust - 0.4750" 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 - 20-21300 - Beehive Spring Kit - 0.610" Lift - Buell | Twin Cam | XL
Kibblewhite
$184.99Kibblewhite - 20-21300 - Beehive Spring Kit - 0.610" Lift - Buell | Twin Cam | XLFeaturesProgressively wound springs using Kobe super-clean, chromium silicon(CrSi) based wire that is heat treated and shot peenedTight-tolerance, FEA-designed hardened...$184.99 -
Out of stock
Kibblewhite - 71046-4 - Valve Stem Seal
Kibblewhite
$10.26Kibblewhite - 71046-4 - Valve Stem Seal Features Solid Viton™ and solid PTFE seals utilize choker spring and lower tension spring to maintain optimal seal under high heat/stress conditions For use with stock intake and exhaust valve...$10.26 -
Out of stock
Kibblewhite - 20-2132C - Valve Guide - Exhaust - 0.5640" OD - Twin Cam '99-'04 | XL '86-'03
Kibblewhite
$8.83Kibblewhite - 20-2132C - Valve Guide - Exhaust - 0.5640" OD - Twin Cam '99-'04 | XL '86-'03FeaturesPrecision-machined from cast ironCompatible with no-lead fuel and accept any type of valve-stem materialAccept special valve guide seals (sold...$8.83 -
Out of stock
Kibblewhite - 20-2131C - Valve Guide - Exhaust - 0.5630" OD - Twin Cam '99-'04 | XL '86-'03
Kibblewhite
$8.83Kibblewhite - 20-2131C - Valve Guide - Exhaust - 0.5630" OD - Twin Cam '99-'04 | XL '86-'03FeaturesPrecision-machined from cast ironCompatible with no-lead fuel and accept any type of valve-stem materialAccept special valve guide seals (sold...$8.83 -
Out of stock
Kibblewhite - 20-20108 - Valve - Intake - 2.00" - Oversize - Twin Cam
Kibblewhite
$29.81Kibblewhite - 20-20108 - Valve - Intake - 2.00" - 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...$29.81 -
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
$215.95Jims - 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...$215.95 -
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 - C10192 - Cylinder Head Gasket - 4.320" - M8
Cometic
$61.90Cometic - C10192 - 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 - 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 - 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 - 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 -
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 - 5835 Valve Spring Compressor Tool fits '17-'21 M-Eight Models
Jims
$322.95Jims - 5835 Valve Spring Compressor Tool fits '17-'21 M-Eight Models Features: Once the cylinder is filled with compressed air, the technician can easily rotate the tool and compress the top collar of the valve spring exposing the keepers to remove...$322.95 -
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
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 -
Out of stock
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 -
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 - 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 -
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.