Cylinder Heads
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Kpmi - 20-21039 - Guide Exhaust 0.010 Bronze M8
Kibblewhite
$26.89Kpmi - 20-21039 - Guide Exhaust 0.010 Bronze M8FeaturesFitment2017-2019Harley DavidsonFLRT Freewheeler2017-2019Harley DavidsonFL$26.89 -
Kpmi - 51016-4 - Valve Keepers Set Of Four Twin Cam 05-17 W/7Mm Stem
Kibblewhite
$6.95Kpmi - 51016-4 - Valve Keepers Set Of Four Twin Cam 05-17 W/7Mm StemFeaturesOEM Style valve keepersFitment2014-2017Harley DavidsonXL1200T Super Low Touring$6.95 -
Kpmi - 20-21400 - Spring Kit .610 Lift Hd Tc
Kibblewhite
$184.99Kpmi - 20-21400 - Spring Kit .610 Lift Hd TcFeaturesWound from Premium Kobe Super-Clean Chrome Silicon Wire. KPMI valve springs are heat-treated, stress relieved and shot peened to insure maximum...$184.99 -
Kpmi - 20-21017H - White Diamond Exhaust Valve M8 1.284 Os
Kibblewhite
$32.78Kpmi - 20-21017H - White Diamond Exhaust Valve M8 1.284 OsFeaturesFitment2018-2020Harley DavidsonFLHR Road King2018-2020Harley Davidson$32.78
Kpmi - 20-20915 - Black Diamond O/S Int. Valve Evo/Twin Cam `84-04
Kibblewhite
$41.95Kpmi - 20-20915 - Black Diamond O/S Int. Valve Evo/Twin Cam `84-04FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley Da$41.95
Kpmi - 20-20920 - Black Diamond O/S Ex. Valve Evo/Twin Cam `84-04
Kibblewhite
$41.95Kpmi - 20-20920 - Black Diamond O/S Ex. Valve Evo/Twin Cam `84-04FeaturesAll KPMI Black Diamond® stainless steel valves are impregnated by a special German process to a depth of .002”, with a surface...$41.95 Kpmi - 20-20925 - Black Diamond O/S Ex. Valve Evo/Twin Cam `84-04
Kibblewhite
$41.95Kpmi - 20-20925 - Black Diamond O/S Ex. Valve Evo/Twin Cam `84-04FeaturesAll KPMI Black Diamond® stainless steel valves are impregnated by a special German process to a depth of .002”, with a surface...$41.95 Kpmi - 20-20930 - Black Diamond O/S Ex. Valve Evo/Twin Cam `84-04
Kibblewhite
$41.95Kpmi - 20-20930 - Black Diamond O/S Ex. Valve Evo/Twin Cam `84-04FeaturesAll KPMI Black Diamond® stainless steel valves are impregnated by a special German process to a depth of .002”, with a surface...$41.95
Kpmi - 20-20940 - Black Diamond O/S Int. Valve Twin Cam 88-103" `05-17
Kibblewhite
$51.95Kpmi - 20-20940 - Black Diamond O/S Int. Valve Twin Cam 88-103" `05-17FeaturesAll KPMI Black Diamond® stainless steel valves are impregnated by a special German process to a depth of .002”, with a...$51.95
Kpmi - 20-21060H - White Diamond Int. Valve 1.614 O/S M8 `17-24 Non Vvt
Kibblewhite
$32.78Kpmi - 20-21060H - White Diamond Int. Valve 1.614 O/S M8 `17-24 Non VvtFeaturesFitment2017-2019Harley DavidsonFLHTKL Electra Glide Ultra Limited Low<$32.78
Kpmi - 20-21061H - White Diamond Int. Valve 1.630 O/S M8 `17-24 Non Vvt
Kibblewhite
$31.95Kpmi - 20-21061H - White Diamond Int. Valve 1.630 O/S M8 `17-24 Non VvtFeaturesFitment2017-2019Harley DavidsonFLHTKL Electra Glide Ultra Limited Low$31.95
Kpmi - 20-21215 - Beehive Valve Spring Kit .550 Lift M8`17-24 Non Vvt
Kibblewhite
$332.95Kpmi - 20-21215 - Beehive Valve Spring Kit .550 Lift M8`17-24 Non Vvt$332.95
Kpmi - 20-24400 - Beehive Valve Spring Kit .640 Lift M8`17-24 Non Vvt
Kibblewhite
$539.84Kpmi - 20-24400 - Beehive Valve Spring Kit .640 Lift M8`17-24 Non Vvt$539.84 Kpmi - 20-2053C - Guide Intake +0.003 Cast Iron Shovelhead `78-83
Kibblewhite
$8.99Kpmi - 20-2053C - Guide Intake +0.003 Cast Iron Shovelhead `78-83$8.99 Kpmi - 20-2063C - Guide Exhaust +0.003 Cast Iron Shovelhead `78-83
Kibblewhite
$8.99Kpmi - 20-2063C - Guide Exhaust +0.003 Cast Iron Shovelhead `78-83$8.99
Kpmi - 20-21850 - Racing Valve Spring Kit .625 Lift H.T. Steel Retainer
Kibblewhite
$332.95Kpmi - 20-21850 - Racing Valve Spring Kit .625 Lift H.T. Steel RetainerFeaturesWound from Premium Kobe Super-Clean Chrome Silicon Wire. KPMI valve springs are heat-treated, stress relieved and shot...$332.95
V-Twin - 49-7676 - Indian Chief Aluminum Head Bolt Set
V-Twin Mfg
MSRP: $83.22$82.38V-Twin - 49-7676 - Indian Chief Aluminum Head Bolt SetDescriptionIndian Chief aluminum head bolt set Fits:ChiefAdditional InformationMSRP: $83.22$82.38
V-Twin - 49-1348 - 1936 EL Cylinder Head Set Bare
Motortechnic
MSRP: $5,001.12$4,789.07V-Twin - 49-1348 - 1936 EL Cylinder Head Set Bare Description Bare Knucklehead cylinder head set features a cast iron construction with factory casting marks. This is the exact replica of the 1936...MSRP: $5,001.12$4,789.07
V-Twin - 49-1310 - 1937-1938 EL Knucklehead Bare Cylinder Head Set
Motortechnic
MSRP: $4,778.50$4,575.89V-Twin - 49-1310 - 1937-1938 EL Knucklehead Bare Cylinder Head SetDescription1937-1938 EL bare Knucklehead head set features OEM production numbers, mc hallmark, small intake port, primer black...MSRP: $4,778.50$4,575.89
V-Twin - 49-1038 - 45 Rear Cylinder Head - Fits 1941-1973 Harley-Davidson G, 1941-1952 WL
V-Twin Mfg
$400.4045 rear cylinder head only. Fits:G 1941-1973WL 1941-1952Additional Information OEM No.379-403R UOM$400.40
V-Twin - 49-1019 - WLDR Cylinder Head Set - Fits 1941-1973 Harley-Davidson G, 1941-1952 WL
V-Twin Mfg
$712.27Cylinder head set features special 69cc combustion chamber and accepts 18mm spark plugs and head bolts.Heads are for use on stock 45 cylinders, not the WR angled type. *NOTE: Must order head bolts...$712.27
V-Twin - 49-0945 - 6:1 High Compression Head Set Aluminum - Fits 1939-1973 Harley-Davidson G, 1939-1946 WLD, 1939-1952 W
V-Twin Mfg
$649.39Heads have a steel insert, cast in, to accept the 18mm spark plug.Combustion champer is 10.5mm deep. Sold as a set of 2. Fits:G 1939-1973WLD 1939-1946W 1939-1952Additional Information$649.39
V-Twin - 49-0908 - 5:1 Low Compression Head Set Aluminum - Fits 1940-1942 Harley-Davidson WLD, 1940-1941 WLDR, 1947-1957 WL
V-Twin Mfg
$522.40Heads have a steel insert, cast in to accept the 18mm spark plug.Combustion chamber is 10.5mm deep. Fits:WLD 1940-1942WLDR 1940-1941WL 1947-1957Additional Information$522.40
V-Twin - 49-0668 - Nickel Plated Head Primer Cups - Fits 1936-1938 Harley-Davidson EL, 1937-1938 FL, 1930-1936 VL
V-Twin Mfg
MSRP: $82.08$81.26Head prime cups are for Flathead and Overhead Valve models and features a nickel plated finish, for exact applications or restoration.Includes knurled knob and valve insert. Fits:EL 1936-1938FL...MSRP: $82.08$81.26
V-Twin - 49-0276 - Long Headbolt - Fits 1965-1973 Harley-Davidson G
V-Twin Mfg
$19.66Long headbolt for side valve models Fits:G 1965-1973Additional Information OEM No.14-4OMA UOM1 - SET<$19.66
V-Twin - 49-0055 - Indian Aluminum Head Bolt Washer - Fits 1936-1953 Indian Chief
V-Twin Mfg
MSRP: $23.86$22.31Indian aluminum head bolt washer Fits:Chief 1936-1953Additional Information OEM No.I37618 UOM20 - PK<MSRP: $23.86$22.31
V-Twin - 49-0009 - Brass Head Primer Cups - Fits 1937-1938 Harley-Davidson UL, 1936-1938 EL, 1930-1936 VL
V-Twin Mfg
MSRP: $81.92$81.09Head primer cups are for Flathead and Overhead Valve models and features a solid brass construction for exact applications or restoration.Includes knurled knob and valve insert. Fits:UL 1937-1938EL...MSRP: $81.92$81.09
V-Twin - 42-6175 - Lower Valve Spring Cup Set Parkerized - Fits 1941-1947 Harley-Davidson FL, 1938-1940 EL
V-Twin Mfg
$793.82Lower valve spring cup set includes 4 piece set of parkerized lower valve spring cups and chrome covers with oil lines and nuts attached.Kit also includes rocker cover strip set with screws and cover...$793.82
V-Twin - 42-6174 - Lower Valve Spring Cup Set Parkerized - Fits 1941-1947 Harley-Davidson FL, 1938-1940 EL
V-Twin Mfg
$793.82Parkerized lower valve spring cup set includes 4 piece set of lower covers with oil lines and nuts attached.Kit also includes rocker cover strip set with screws and cover set with gaskets in...$793.82
V-Twin - 42-3637 - Lower Valve Spring Cup Set Parkerized - Fits 1936-1937 Harley-Davidson EL
V-Twin Mfg
$683.11Include 4 piece set of lower covers with steel oil lines and nuts brazed in place and 4 piece cover set, which features a parkerized finish.Complete set for four valves include four snap on tops and...$683.11
V-Twin - 42-1170 - M8 Finned Spark Plug Cover Set Granite
V-Twin Mfg
MSRP: $71.37$70.65V-Twin - 42-1170 - M8 Finned Spark Plug Cover Set GraniteDescriptionGranite finned spark plug cover set for M8 models. Fits:FLT 2017-UPAdditional InformationMSRP: $71.37$70.65
V-Twin - 42-1160 - M8 Finned Spark Plug Cover Set Black
V-Twin Mfg
MSRP: $71.37$70.65V-Twin - 42-1160 - M8 Finned Spark Plug Cover Set BlackDescriptionBlack finned spark plug cover set for M8 models. Fits:FLT 2017-UPAdditional InformationMSRP: $71.37$70.65
V-Twin - 42-1156 - Head Bolt and Spark Plug Cover Kit Silver
V-Twin Mfg
$60.46V-Twin - 42-1156 - Head Bolt and Spark Plug Cover Kit SilverDescriptionSilver cylinder head bolt and spark plug cover kit. Fits:XL 2004-UPAdditional Information$60.46
V-Twin - 42-1154 - Head Bolt and Spark Plug Cover Kit Silver - Fits 1999-2006 Harley-Davidson FLST, FXST, FLT, FXD
V-Twin Mfg
$60.46Silver cylinder head bolt and spark plug cover kit for carbureted models. Fits:FLST 1999-2006FXST 1999-2006FLT 1999-2006FXD 1999-2006Additional Information$60.46
V-Twin - 42-1092 - Brass Cylinder Head Bolt Cover - Fits 1991-2017 Harley-Davidson FXD, 1986-2017 FLST, 1984-2017 FXST, 1984-1994 FXR, 1984-2017 FLT
V-Twin Mfg
$50.39Solid brass cylinder head bolt cover is a four piece set. Fits:FXD 1991-2017FLST 1986-2017FXST 1984-2017FXR 1984-1994FLT 1984-2017Additional Information <$50.39
V-Twin - 42-0772 - Cylinder Head Locker Aluminum - Fits 1986-1991 Harley-Davidson FXR, FXST, FLST, FLT
V-Twin Mfg
$27.92Cylinder head locker fits Big Twin 1340 models in shot peened natural aluminum. Set screws are included for installation. Fits:FXR 1986-1991FXST 1986-1991FLST 1986-1991FLT 1986-1991Additional...$27.92
V-Twin - 3717-16 - Cylinder Head Bolt Set 12 Point Black
Colony Machine
MSRP: $49.90$48.50V-Twin - 3717-16 - Cylinder Head Bolt Set 12 Point BlackDescriptionBlack oxide 12 point cylinder head bolt kit includes washers. Fits:XLCH 1973-1985XLH 1973-1985Additional InformationMSRP: $49.90$48.50
V-Twin - 37-9399 - Cylinder Headbolt Cover Set Black
V-Twin Mfg
$36.59V-Twin - 37-9399 - Cylinder Headbolt Cover Set BlackDescription4 piece cylinder headbolt cover set features a black finish. Fits:XL 1986-UPFLST 1986-UPFXST 1986-UPFLT 1986-UPFXR 1986-UPAdditional...$36.59
V-Twin - 37-9131 - Head Bolt Cover Set Chrome
V-Twin Mfg
$30.20V-Twin - 37-9131 - Head Bolt Cover Set ChromeDescriptionChrome grooved head bolt cover set. Fits:FXD 1991-2017FLT 1986-2017XL 1986-UPFXST 1986-2017FXR 1986-1994FLST 1986-2017Additional Information$30.20
V-Twin - 37-9019 - Head Bolt Set Chrome - Fits 1986-1991 Harley-Davidson FXR, 1991 FXD, 1986-1992 XL, 1986-1991 FXST, FLST, FLT
V-Twin Mfg
$98.20Chrome 12 point head bolt set Fits:FXR 1986-1991FXD 1991-1991XL 1986-1992FXST 1986-1991FLST 1986-1991FLT 1986-1991Additional Information$98.20
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.