Cylinder Heads
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V-Twin - 8221-20 - Chrome Stock Head Bolt with Washer
Colony Machine
MSRP: $82.78$80.71V-Twin - 8221-20 - Chrome Stock Head Bolt with WasherDescriptionStock head bolt with washers in chrome. Fits:FX 1971-1984FL 1948-1984Additional Information UOM1 - KIT ManufacturerColony OriginUSA 2025 Catalog Pages510MSRP: $82.78$80.71 -
V-Twin - 8220-20 - Chrome Head Bolt with Washer
Colony Machine
MSRP: $82.78$80.71V-Twin - 8220-20 - Chrome Head Bolt with WasherDescriptionChrome head bolt with washer Fits:FL 1940-1947Additional Information UOM1 - KIT ManufacturerColony OriginUSA 2025 Catalog Pages515MSRP: $82.78$80.71 -
V-Twin - 8217-18-45 - Chrome Headbolt
Colony Machine
MSRP: $112.69$111.11V-Twin - 8217-18-45 - Chrome HeadboltDescriptionChrome stock headbolt with aluminum headsOrder washers separately Fits:WL 1929-1952G 1929-1973Additional Information UOM1 - KIT ManufacturerColony OriginUSAMSRP: $112.69$111.11 -
V-Twin - 8216-18 - Chrome Stock Headbolt with Aluminum Heads
Colony Machine
MSRP: $126.57$120.49V-Twin - 8216-18 - Chrome Stock Headbolt with Aluminum HeadsDescriptionChrome stock headbolt with aluminum heads. Fits:UL 1937-1948Additional Information UOM1 - KIT ManufacturerColony OriginUSA 2025 Catalog Pages795MSRP: $126.57$120.49 -
V-Twin - 8215-18 - Chrome Aluminum Head Washers
Colony Machine
MSRP: $60.25$58.56V-Twin - 8215-18 - Chrome Aluminum Head WashersDescriptionChrome aluminum head washers Fits:UL 1937-1947WL 1929-1952G 1929-1973Additional Information OEM No.16822-39 UOM1 - KIT ManufacturerColony OriginUSA 2025 Catalog Pages795MSRP: $60.25$58.56 -
V-Twin - 7825-20 - Cadmium Stock Head Bolt
Colony Machine
MSRP: $61.37$59.64V-Twin - 7825-20 - Cadmium Stock Head BoltDescriptionCadmium hex headbolt stock. Fits:FX 1971-1984FL 1948-1984Additional Information UOM1 - KIT ManufacturerColony OriginUSA 2025 Catalog Pages510MSRP: $61.37$59.64 -
V-Twin - 7153-20 - Acorn Head Bolt
Colony Machine
MSRP: $76.23$68.61V-Twin - 7153-20 - Acorn Head BoltDescriptionAcorn head bolt Fits:FX 1971-1984FL 1948-1984Additional Information UOM1 - KIT ManufacturerColony OriginUSA 2025 Catalog Pages510MSRP: $76.23$68.61 -
S&S Cycle - 90-2025 - Intake Valve - 1.940" - For 79 cc S&S Heads
S&S Cycle
$50.95S&S Cycle - 90-2025 - Intake Valve - 1.940" - For 79 cc S&S HeadsFeaturesHeads are also found on S&S Twin Cam-style motors and use 1.940" intake valves and 1.575" exhaust valvesMade in the USAFor S&S heads.SpecsApplicationIntakeRiding StyleStreetHead...$50.95 -
S&S Cycle - 90-2026 - Exhaust Valve - 1.575" - For 79 cc S&S Heads
S&S Cycle
$71.95S&S Cycle - 90-2026 - Exhaust Valve - 1.575" - For 79 cc S&S HeadsFeaturesHeads are also found on S&S Twin Cam-style motors and use 1.940" intake valves and 1.575" exhaust valvesMade in the USAFor S&S heads.SpecsApplicationExhaustMaterialStainless...$71.95 -
S&S Cycle - 90-2001 - Exhaust Valve - 1.605" x 4.428" @ 1.509" Gauge
S&S Cycle
$81.95S&S Cycle - 90-2001 - Exhaust Valve - 1.605" x 4.428" @ 1.509" GaugeFeaturesHeads are found on S&S Twin Cam-style motors and use 2.000" intake valves and 1.605" exhaust valvesReplacement for S&S headsMade in the USAFor 89 cc/91 cc S&S Heads...$81.95 -
S&S Cycle - 90-2000 - Intake Valve - 2.000" x 4.450" @ 1.943" Gauge
S&S Cycle
$40.95S&S Cycle - 90-2000 - Intake Valve - 2.000" x 4.450" @ 1.943" GaugeFeaturesHeads are found on S&S Twin Cam-style motors and use 2.000" intake valves and 1.605" exhaust valvesReplacement for S&S headsMade in the USAFor 89 cc/91 cc S&S Heads...$40.95 -
S&S Cycle - 90-2087 - Valve Spring Shim - 0.030" - For B3 Heads
S&S Cycle
$7.95S&S Cycle - 90-2087 - Valve Spring Shim - 0.030" - For B3 HeadsFeatures.574" x 1.450" x .030"Black, steel constructionMade in the USASpecsRiding StyleStreetProduct NameShimUnitsEachColor/FinishBlackTypeValve SpringMaterialSteel$7.95 -
Kibblewhite - 20-21260 - Compression Release Valve - M10 - 1.250"
Kibblewhite
$49.71Kibblewhite - 20-21260 - Compression Release Valve - M10 - 1.250"FeaturesState-of-the-art design to help reduce hot start issues and starter/battery loadsHave 5-7 Newtons of closing force resistanceCustom molded knobs ensure they stay cool to the touch...$49.71 -
Kibblewhite - 20-21255 - Compression Release Valve - M10 - 1.380"
Kibblewhite
$49.71Kibblewhite - 20-21255 - Compression Release Valve - M10 - 1.380"FeaturesState-of-the-art design to help reduce hot start issues and starter/battery loadsHave 5-7 Newtons of closing force resistanceCustom molded knobs ensure they stay cool to the touch...$49.71 -
Kibblewhite - 20-21250 - Compression Release Valve - M10 - 1.050"
Kibblewhite
$49.71Kibblewhite - 20-21250 - Compression Release Valve - M10 - 1.050"FeaturesState-of-the-art design to help reduce hot start issues and starter/battery loadsHave 5-7 Newtons of closing force resistanceCustom molded knobs ensure they stay cool to the touch...$49.71 -
Feuling Parts - 1201 - Valve Spring Kit - High Load Beehive® with TI Retainers - TC with SE Heads
Feuling
$379.95Feuling Parts - 1201 - Valve Spring Kit - High Load Beehive® with TI Retainers - TC with SE HeadsFeaturesMade from premium stress-relieved conical ovate wire with nitrided surface heat treatment, shot-peened surface enhancements and Nano Peen™ polishUses...$379.95 -
Feuling Parts - 1101 - Valve Spring Kit - Endurance Beehive with TI Retainers - TC with SE Heads
Feuling
$379.95Feuling Parts - 1101 - Valve Spring Kit - Endurance Beehive with TI Retainers - TC with SE HeadsFeaturesFEULING® BEEHIVE® valve springs use a much smaller and lighter weight retainer which drastically reduces the valve weight creating a much quicker...$379.95 -
S&S Cycle - 90-4914 - Replacement Electric Compression Release Assembly
S&S Cycle
$193.95S&S Cycle - 90-4914 - Replacement Electric Compression Release AssemblyFeaturesElectric compression releases open when you press the start button and close when the button is releasedIncludes replacement compression assembly, Deutsch connector, orange...$193.95 -
S&S Cycle - 90-1504 - Cylinder Head Kit - Big Twin
S&S Cycle
$1,799.95S&S Cycle - 90-1504 - Cylinder Head Kit - Big TwinFeaturesS&S heads give great performance, and work with additional upgradesKits are fully assembled, and include stainless steel valves and high-lift springs (up to .640 lift)Intake manifold, pistons and...$1,799.95 -
S&S Cycle - 90-1004 - Cylinder Head Kit - Big Twin
S&S Cycle
$1,949.95S&S Cycle - 90-1004 - Cylinder Head Kit - Big TwinFeaturesS&S heads give great performance, and work with additional upgradesKits are fully assembled, and include stainless steel valves and high-lift springs (up to .640 lift)Intake manifold, pistons and...$1,949.95 -
S&S Cycle - 90-2212 - Valve Guide - +0.002" - Twin Cam | XL
S&S Cycle
MSRP: $125.95$95.95S&S Cycle - 90-2212 - Valve Guide - +0.002" - Twin Cam | XLFeaturesCast iron intake/exhaust guideFits S&S Super Stock and stock Harley-Davidson cylinder headsGuide ID measures aprox. 0.309"/0.310" with enough material left for proper clearancingMade in...MSRP: $125.95$95.95 -
S&S Cycle - 900-0594 - Springs - .585" - Twin Cam
S&S Cycle
$183.95S&S Cycle - 900-0594 - Springs - .585" - Twin CamFeaturesUnique S&S design dual-spring kit reduces the risk of valve floatIncludes springs, top and bottom collars, keeper shims and valve sealsMade in the USAFor valve lift with 1.800" /130 lb installed...$183.95 -
S&S Cycle - 90-2210 - Valve Guide - Standard - Big Twin
S&S Cycle
$58.95S&S Cycle - 90-2210 - Valve Guide - Standard - Big TwinFeaturesCast iron intake/exhaust guideFits S&S Super Stock and stock Harley Davidson cylinder headsGuide ID measures approximately .309" / .310" with enough material left for proper clearancingMade...$58.95 -
S&S Cycle - 900-0593 - Springs - .585" - Twin Cam
S&S Cycle
$163.95S&S Cycle - 900-0593 - Springs - .585" - Twin CamFeaturesKit Includes 4 springs, 4 top spring collars, 4 .030" Shims, 4 .015" Shims, 4 bottom spring collars, 4 pairs of valve keepers (halves)SpecsProduct NameSpring KitUnitsKitApplicationIntakeSpring Lift...$163.95 -
S&S Cycle - 900-0050 - Spring Kit - .650"
S&S Cycle
$254.95S&S Cycle - 900-0050 - Spring Kit - .650"FeaturesInclude springs, upper and lower collars and keysFor valve lift to .650" with 1.860" /178 lbs. installed height, 376 lbs. at max liftMax 6500 rpmMade in the USASpecsSpring Open Pressure376...$254.95 -
S&S Cycle - 106-5909 - Valve Springs - .650" - Twin Cam
S&S Cycle
$257.95S&S Cycle - 106-5909 - Valve Springs - .650" - Twin CamFeaturesInclude springs, upper and lower collars and keysFor valve lift to .650" with 1.860" /178 lbs. installed height, 376 lbs. at max liftMax 6500 rpmMade in the USASpecsApplicationExhaustProduct...$257.95 -
Kibblewhite - 20-4169 - Valve - Intake - 1.940" - Oversize - Branch Heads - Evolution Big Twin
Kibblewhite
$37.55Kibblewhite - 20-4169 - Valve - Intake - 1.940" - Oversize - Branch Heads - Evolution Big TwinFeaturesOne-piece stainless-steel, stellite-tipped valve is fortified by a special nitrided process with .002" depth and .0002" surface buildup to improve wear...$37.55 -
Kibblewhite - 20-4170 - Valve - Intake - 1.615" - Standard - Evolution Big Twin
Kibblewhite
$29.81Kibblewhite - 20-4170 - Valve - Intake - 1.615" - Standard - Evolution Big TwinFeaturesOne-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...$29.81 -
Kibblewhite - 20-4321 - Valve Guide - Intake/Exhaust - 0.5630" OD - Evolution Big Twin | Twin Cam | XL
Kibblewhite
$37.93Kibblewhite - 20-4321 - Valve Guide - Intake/Exhaust - 0.5630" OD - Evolution Big Twin | Twin Cam | XLFeaturesPrecision-machined from copper based C63000 nickel-aluminum bronzeCompatible with no-lead fuel and accept any type of valve-stem materialProvide...$37.93 -
Kibblewhite - 20-4321C - Valve Guide - Intake/Exhaust - 0.5630" OD - Twin Cam '99-'04 | XL '86-'03
Kibblewhite
$8.83Kibblewhite - 20-4321C - Valve Guide - Intake/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 materialMade in the U.S.A.SpecsLength Imperial2...$8.83 -
Kibblewhite - 20-4171 - Valve - Intake - 1.840" - Standard - Evolution Big Twin
Kibblewhite
$29.81Kibblewhite - 20-4171 - Valve - Intake - 1.840" - Standard - Evolution Big TwinFeaturesOne-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...$29.81 -
Kibblewhite - 20-4195 - Valve - Exhaust - 1.750" - Standard - Panhead | Shovelhead
Kibblewhite
$31.01Kibblewhite - 20-4195 - Valve - Exhaust - 1.750" - Standard - Panhead | ShovelheadFeaturesOne-piece stainless-steel, stellite-tipped valve is fortified by a special nitrided process with .002" depth and .0002" surface buildup to improve wear properties...$31.01 -
Kibblewhite - 20-20092 - Valve - Exhaust - 1.350" - Standard - 883XL
Kibblewhite
$37.55Kibblewhite - 20-20092 - Valve - Exhaust - 1.350" - Standard - 883XLFeaturesOne-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...$37.55 -
Kibblewhite - 20-20090 - Valve - Intake - 1.585" - Standard - 883XL
Kibblewhite
$37.55Kibblewhite - 20-20090 - Valve - Intake - 1.585" - Standard - 883XLFeaturesOne-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...$37.55 -
Kibblewhite - 10-HC541 - Valve Seat
Kibblewhite
$14.47Kibblewhite - 10-HC541 - Valve SeatFeaturesCopper-based material designed specifically for use with titanium valves in high performance applicationsGive the seat excellent thermal characteristics as well as resistance to corrosion and wearThese seats are...$14.47 -
Kibblewhite - 10-HC526 - Valve Seat
Kibblewhite
$14.47Kibblewhite - 10-HC526 - Valve SeatFeaturesCopper-based material designed specifically for use with titanium valves in high performance applicationsGive the seat excellent thermal characteristics as well as resistance to corrosion and wearThese seats are...$14.47 -
Kibblewhite - 10-HC518 - Valve Seat
Kibblewhite
$14.47Kibblewhite - 10-HC518 - Valve SeatFeaturesCopper-based material designed specifically for use with titanium valves in high performance applicationsGive the seat excellent thermal characteristics as well as resistance to corrosion and wearThese seats are...$14.47 -
Kibblewhite - 10-HC478 - Valve Seat
Kibblewhite
$14.47Kibblewhite - 10-HC478 - Valve SeatFeaturesCopper-based material designed specifically for use with titanium valves in high performance applicationsGive the seat excellent thermal characteristics as well as resistance to corrosion and wearThese seats are...$14.47 -
Kibblewhite - 10-HC446 - Valve Seat
Kibblewhite
$14.47Kibblewhite - 10-HC446 - Valve SeatFeaturesCopper-based material designed specifically for use with titanium valves in high performance applicationsGive the seat excellent thermal characteristics as well as resistance to corrosion and wearThese seats are...$14.47 -
Kibblewhite - 10-HC440 - Valve Seat
Kibblewhite
$14.47Kibblewhite - 10-HC440 - Valve SeatFeaturesCopper-based material designed specifically for use with titanium valves in high performance applicationsGive the seat excellent thermal characteristics as well as resistance to corrosion and wearThese seats are...$14.47
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.