Cylinder Heads
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On Sale
S&S Cycle - Headbolt Kit fits '84-'99 Evolution Big Twin, '99-'17 Twin Cam & '86-'21 XL Models (exc. '21 S/RH1250S)
S&S Cycle
MSRP: $99.95Now: $92.66Was: $102.95S&S Cycle - Headbolt Kit fits '84-'99 Evolution Big Twin, '99-'17 Twin Cam & '86-'21 XL Models (exc. '21 S/RH1250S) This complete headbolt kit features 12-point bolts and is built with pride in the U.S.A.MSRP: $99.95Now: $92.66Was: $102.95 -
Colony - Head Bolt Set fits '99-'17 Twin Cam & '92-'22 Sportster Models (Except RH Sportster (OEM #16478-85A, 16480-92))
Colony Machine
$86.95Colony - Head Bolt Set fits '99-'17 Twin Cam & '92-'22 Sportster Models (Except RH Sportster (OEM #16478-85A, 16480-92)) Features: 12-point replacement headbolts Made in the U.S.A. Fitment 2016-2017 Harley-Davidson Softail Slim S...$86.95 -
Feuling - Red Cylinder Head Breathers fits '18 & Up M8 Harley Models
Feuling
$479.95Feuling - Red Cylinder Head Breathers fits '18 & Up M8 Harley Models These cylinder head breathers are constructed from billet 6061 aluminum with square surfaces, guaranteeing outstanding umbrella valve sealing and longer main breather exit nipples...$479.95 -
Feuling - Headbolt Kit fits '99-'17 Twin Cam and '92-'22 Sportster Models (exc. '21-'22 Sportster S/RH1250S, 22 Nightster/RH975)
Feuling
$299.95Feuling - Headbolt Kit fits '99-'17 Twin Cam and '92-'22 Sportster Models (exc. '21-'22 Sportster S/RH1250S, 22 Nightster/RH975) This kit features wide underhead flange bolts and hardened chamfered washers that provide even load distribution for the...$299.95 -
Colony - 9760-4 Allen Type Tappet Block Screw Kit fits '95-'03 Sportster Model
Colony Machine
$15.86Colony - 9760-4 Allen Type Tappet Block Screw Kit fits '95-'03 Sportster Model Tappet block allen type screw kit. Fitment: XL 1995-2003$15.86 -
On Sale
S&S Cycle - Super Stock™ '66-'78 Style Cylinder Head Kit for Stock Bore Cylinders W/ O-Ring Intake
S&S Cycle
MSRP: $1,689.95Now: $1,551.56Was: $1,723.95S&S Cycle - Super Stock™ '66-'78 Style Cylinder Head Kit for Stock Bore Cylinders W/ O-Ring Intake Complete kits also include rocker cover gaskets, head gaskets and miscellaneous hardware with instructions Use OEM manifolds and...MSRP: $1,689.95Now: $1,551.56Was: $1,723.95 -
On Sale
S&S Cycle - Super Stock™ '79-'84 Style Cylinder Head Kit for Stock Bore Cylinders W/ Rubber Band Intake
S&S Cycle
MSRP: $1,689.95Now: $1,551.56Was: $1,723.95S&S Cycle - Super Stock™ '79-'84 Style Cylinder Head Kit for Stock Bore Cylinders W/ Rubber Band Intake This Cylinder Head Kit uses a band-style intake (not included). Sold in pairs, built with pride in the U.S.A. Features Heads come...MSRP: $1,689.95Now: $1,551.56Was: $1,723.95 -
On Sale
S&S Cycle - 76cc High Compression Performance Cylinder Heads fits '84-'99 Evolution Big Twin Models - Natural
S&S Cycle
MSRP: $1,359.95Now: $1,322.06Was: $1,468.95S&S Cycle - 76cc High Compression Performance Cylinder Heads fits '84-'99 Evolution Big Twin Models - Natural Great news: S&S heads are now available to be used with stock-style flat-top pistons! The kits are fully assembled and come with...MSRP: $1,359.95Now: $1,322.06Was: $1,468.95 -
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 -
S&S Cycle - Valve Spring Kit fits '48-'84 Big Twin Models
S&S Cycle
$248.95S&S Cycle - Valve Spring Kit fits '48-'84 Big Twin Models Features: To be used with cams with up to .550" lift Includes springs and aluminum top retainers 140-lb. seat pressure Must allow additional rocker clearance for 48-65 Panheads Made in...$248.95 -
Colony - 9211-16 Chrome Headbolt Kit fits '73-'85 Sportster Model
Colony Machine
$65.92Colony - 9211-16 Chrome Headbolt Kit fits '73-'85 Sportster Model 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 Model
Colony Machine
$58.35Colony - 9748-16 Allen Type Headbolt Kit fits '73-'85 Sportster Model Allen type headbolt kit. Fitment: XL 1973-1985$58.35 -
Colony - 9759-4 Allen Type Tappet Block Screw Kit fits '91-'94 Sportster Model
Colony Machine
$13.86Colony - 9759-4 Allen Type Tappet Block Screw Kit fits '91-'94 Sportster Model 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 -
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 -
On Sale
S&S Cycle - Retro Top-End Conversion Kit for 3.625" Bore Cylinders fits '66-'84 Shovelhead Engines
S&S Cycle
Now: $4,049.96Was: $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...Now: $4,049.96Was: $4,499.95 -
On Sale
S&S Cycle - Retro Top-End Conversion Kit for Stock Bore Cylinders fits '66-'84 Shovelhead Engines
S&S Cycle
Now: $3,596.36Was: $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...Now: $3,596.36Was: $3,995.95 -
On Sale
S&S Cycle - Super Stock™ '66-'78 Cylinder Heads - fits 3-5/8" Bore Cylinders
S&S Cycle
Now: $1,709.96Was: $1,899.95S&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...Now: $1,709.96Was: $1,899.95 -
On Sale
S&S Cycle - Wrinkle Black Powdercoat 91cc Super Stock™ Cylinder Heads fits '06-'17 Twin Cam Models (Exc. Twin Cooled Motors)
S&S Cycle
MSRP: $1,911.95Now: $1,616.36Was: $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...MSRP: $1,911.95Now: $1,616.36Was: $1,795.95 -
On Sale
S&S Cycle - Silver Powdercoat 79cc Super Stock™ Cylinder Heads fits '99-'05 Twin Cam Models
S&S Cycle
Now: $1,934.96Was: $2,149.95S&S Cycle - Silver Powdercoat 79cc Super Stock™ Cylinder Heads fits '99-'05 Twin Cam Models S&S Cycle's 79cc Super Stock™ Cylinder Heads' high port flow creates excellent performance after initial installation, and even greater...Now: $1,934.96Was: $2,149.95 -
On Sale
S&S Cycle - Wrinkle Black Powdercoat 79cc Super Stock™ Cylinder Heads fits '06-'17 Twin Cam Models (Exc. Twin Cooled Motors)
S&S Cycle
Now: $1,796.36Was: $1,995.95S&S Cycle - Wrinkle Black Powdercoat 79cc Super Stock™ Cylinder Heads fits '06-'17 Twin Cam Models (Exc. Twin Cooled Motors) S&S Cycle's 79cc Super Stock™ Cylinder Heads' high port flow creates excellent performance after initial...Now: $1,796.36Was: $1,995.95 -
On Sale
S&S Cycle - Wrinkle Black Powdercoat 89cc Super Stock™ Cylinder Heads fits '06-'17 Twin Cam Models (Exc. Twin Cooled Motors)
S&S Cycle
Now: $1,796.36Was: $1,995.95S&S Cycle - Wrinkle Black 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...Now: $1,796.36Was: $1,995.95 -
On Sale
S&S Cycle - Super Stock™ Single Spark Plug Cylinder Heads - fits '79-'84 (Rubber Band Intake) 3 ⅜" Bore Cylinders
S&S Cycle
MSRP: $1,689.95Now: $1,625.36Was: $1,805.95S&S Cycle - Super Stock™ Single 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...MSRP: $1,689.95Now: $1,625.36Was: $1,805.95 -
On Sale
S&S Cycle - Wrinkle Black Powdercoat 79cc Super Stock™ Cylinder Heads fits '99-'05 Twin Cam Models (.585" Lift)
S&S Cycle
Now: $1,526.36Was: $1,695.95S&S Cycle - Wrinkle Black Powdercoat 79cc Super Stock™ Cylinder Heads fits '99-'05 Twin Cam Models (.585" Lift) S&S Cycle's 79cc Super Stock™ Cylinder Heads' high port flow creates excellent performance after initial installation,...Now: $1,526.36Was: $1,695.95
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.