S&S Cycle 2017 M8 Models Cylinder Stud & Head Bolt Kit - 8 Pack

If you're pushing the limits, it's time to upgrade. S&S Chrome Moly Head Studs are built to handle the heat, torque, and abuse that comes with high-performance builds. Don't let stock studs be your weak link-step up your game with S&S.

• Rounded thread roots, rather than flat, improve fatigue strength
• 4140 Chrome Moly studs, oil quenched and tempered to 39-44 HRC
• Positive stop shoulder allows for consistent installed height
• 180,000psi Tensile Strength

Upgrade your high-performance Harley-Davidson engine with the S&S Cycle Chrome Moly Cylinder Head Stud Kit, part number SSC900-1176. Designed for demanding builds, this eight-piece stud and head bolt kit helps provide reliable clamping strength under increased heat, torque, and engine stress. It is engineered as a stronger alternative to stock fasteners for riders and builders who require dependable performance.

• Material: 4140 chrome moly steel, oil quenched and tempered to 39–44 HRC


• Thread Design: Rounded thread roots improve fatigue strength compared with flat thread roots


• Shoulder Stop: Positive stop shoulder promotes consistent installed height


• Tensile Strength: Rated at 180,000 psi for high-load applications


• Quantity: Eight-piece kit for a complete cylinder head fastening upgrade

The SSC900-1176 kit is designed for select 2017 Harley-Davidson motorcycles, including the XL1200CX Roadster, FXDL Low Rider, FXDLS Low Rider S, FXDF Fat Bob, FXDWG Dyna Wide Glide, FLS Softail Slim, FLSS Softail Slim S, FLSTF Fat Boy, FLSTFBS Fat Boy S, and FLSTC Heritage Softail Classic. Verify engine and model-year compatibility before installation.
Built by S&S Cycle for performance-focused powersports applications, these cylinder head studs support consistent installation and enhanced durability where factory fasteners may be insufficient. Follow the appropriate service manual procedures and torque specifications when installing the S&S Cycle SSC900-1176 kit.

Features:

• Material: 4140 chrome moly steel, oil quenched and tempered to 39–44 HRC

• Thread Design: Rounded thread roots improve fatigue strength

• Shoulder Stop: Positive stop shoulder helps provide consistent installed height

• Tensile Strength: 180,000 psi

• Quantity: Eight-piece cylinder stud and head bolt kit

• Fitment: Select 2017 Harley-Davidson XL, Dyna, and Softail models

Fitment:
Harley Davidson FLDE Deluxe 107 Base 2018
Harley Davidson FLDE Deluxe 107 Base 2019
Harley Davidson FLDE Deluxe 107 Base 2020
Harley Davidson FLFB Fat Boy 107 Base 2018
Harley Davidson FLFB Fat Boy 107 Base 2019
Harley Davidson FLFBS Fat Boy 114 Base 2018
Harley Davidson FLFBS Fat Boy 114 Base 2019
Harley Davidson FLFBS Fat Boy 114 Base 2020
Harley Davidson FLFBS Fat Boy 114 Base 2021
Harley Davidson FLH Electra Glide Revival Base 2021
Harley Davidson FLHC Heritage Classic 107 Base 2018
Harley Davidson FLHC Heritage Classic 107 Base 2019
Harley Davidson FLHC Heritage Classic 107 Base 2020
Harley Davidson FLHC Heritage Classic 107 Base 2021
Harley Davidson FLHCS Heritage Classic 114 Base 2018
Harley Davidson FLHCS Heritage Classic 114 Base 2019
Harley Davidson FLHCS Heritage Classic 114 Base 2020
Harley Davidson FLHCS Heritage Classic 114 Base 2021
Harley Davidson FLHR Road King Base 2017
Harley Davidson FLHR Road King Base 2018
Harley Davidson FLHR Road King Base 2019
Harley Davidson FLHR Road King Base 2020
Harley Davidson FLHR Road King Base 2021
Harley Davidson FLHRXS Road King Special Base 2017
Harley Davidson FLHRXS Road King Special Base 2018
Harley Davidson FLHRXS Road King Special Base 2019
Harley Davidson FLHRXS Road King Special Base 2020
Harley Davidson FLHRXS Road King Special Base 2021
Harley Davidson FLHT Electra Glide Standard Base 2019
Harley Davidson FLHT Electra Glide Standard Base 2020
Harley Davidson FLHT Electra Glide Standard Base 2021
Harley Davidson FLHTCU Electra Glide Ultra Classic Base 2017
Harley Davidson FLHTCU Electra Glide Ultra Classic Base 2018
Harley Davidson FLHTCU Electra Glide Ultra Classic Base 2019
Harley Davidson FLHTCUTG Tri Glide Ultra Base 2017
Harley Davidson FLHTCUTG Tri Glide Ultra Base 2018
Harley Davidson FLHTCUTG Tri Glide Ultra Base 2019
Harley Davidson FLHTCUTG Tri Glide Ultra Base 2020
Harley Davidson FLHTCUTG Tri Glide Ultra Base 2021
Harley Davidson FLHTCUTGSE CVO Tri Glide Base 2020
Harley Davidson FLHTCUTGSE CVO Tri Glide Base 2021
Harley Davidson FLHTKSE CVO Limited Base 2017
Harley Davidson FLHTKSE CVO Limited Base 2018
Harley Davidson FLHTKSE CVO Limited Base 2019
Harley Davidson FLHTKSE CVO Limited Base 2020
Harley Davidson FLHTKSE CVO Limited Base 2021
Harley Davidson FLHX Street Glide Base 2017
Harley Davidson FLHX Street Glide Base 2018
Harley Davidson FLHX Street Glide Base 2019
Harley Davidson FLHX Street Glide Base 2020
Harley Davidson FLHX Street Glide Base 2021
Harley Davidson FLHXS Street Glide Special Base 2017
Harley Davidson FLHXS Street Glide Special Base 2018
Harley Davidson FLHXS Street Glide Special Base 2019
Harley Davidson FLHXS Street Glide Special Base 2020
Harley Davidson FLHXS Street Glide Special Base 2021
Harley Davidson FLHXSE CVO Street Glide Base 2017
Harley Davidson FLHXSE CVO Street Glide Base 2018
Harley Davidson FLHXSE CVO Street Glide Base 2019
Harley Davidson FLHXSE CVO Street Glide Base 2020
Harley Davidson FLHXSE CVO Street Glide Base 2021
Harley Davidson FLRT Freewheeler Base 2017
Harley Davidson FLRT Freewheeler Base 2018
Harley Davidson FLRT Freewheeler Base 2019
Harley Davidson FLRT Freewheeler Base 2020
Harley Davidson FLRT Freewheeler Base 2021
Harley Davidson FLS Softail Slim Base 2017
Harley Davidson FLSB Sport Glide 107 Base 2018
Harley Davidson FLSB Sport Glide 107 Base 2019
Harley Davidson FLSB Sport Glide 107 Base 2020
Harley Davidson FLSB Sport Glide 107 Base 2021
Harley Davidson FLSL Softail Slim 107 Base 2018
Harley Davidson FLSL Softail Slim 107 Base 2019
Harley Davidson FLSL Softail Slim 107 Base 2020
Harley Davidson FLSL Softail Slim 107 Base 2021
Harley Davidson FLSS Softail Slim S Base 2017
Harley Davidson FLSTC Heritage Softail Classic Base 2017
Harley Davidson FLSTF Fat Boy Base 2017
Harley Davidson FLSTFBS Fat Boy S Base 2017
Harley Davidson FLSTN Softail Deluxe Base 2017
Harley Davidson FLTRK Road Glide Limited Base 2020
Harley Davidson FLTRK Road Glide Limited Base 2021
Harley Davidson FLTRU Road Glide Ultra Base 2017
Harley Davidson FLTRU Road Glide Ultra Base 2018
Harley Davidson FLTRU Road Glide Ultra Base 2019
Harley Davidson FLTRX Road Glide Base 2017
Harley Davidson FLTRX Road Glide Base 2018
Harley Davidson FLTRX Road Glide Base 2019
Harley Davidson FLTRX Road Glide Base 2020
Harley Davidson FLTRX Road Glide Base 2021
Harley Davidson FLTRXS Road Glide Special Base 2017
Harley Davidson FLTRXS Road Glide Special Base 2018
Harley Davidson FLTRXS Road Glide Special Base 2019
Harley Davidson FLTRXS Road Glide Special Base 2020
Harley Davidson FLTRXS Road Glide Special Base 2021
Harley Davidson FLTRXSE CVO Road Glide Base 2018
Harley Davidson FLTRXSE CVO Road Glide Base 2019
Harley Davidson FLTRXSE CVO Road Glide Base 2020
Harley Davidson FLTRXSE CVO Road Glide Base 2021
Harley Davidson FXBB Street Bob 107 Base 2018
Harley Davidson FXBB Street Bob 107 Base 2019
Harley Davidson FXBB Street Bob 107 Base 2020
Harley Davidson FXBBS Street Bob 114 Base 2021
Harley Davidson FXBR Breakout 107 Base 2018
Harley Davidson FXBR Breakout 107 Base 2019
Harley Davidson FXBRS Breakout 114 Base 2018
Harley Davidson FXBRS Breakout 114 Base 2019
Harley Davidson FXBRS Breakout 114 Base 2020
Harley Davidson FXDF Fat Bob Base 2017
Harley Davidson FXDL Dyna Low Rider Base 2017
Harley Davidson FXDL Low Rider Base 2017
Harley Davidson FXDLS Low Rider S Base 2017
Harley Davidson FXDRS FXDR 114 Base 2019
Harley Davidson FXDRS FXDR 114 Base 2020
Harley Davidson FXDWG Dyna Wide Glide Base 2017
Harley Davidson FXFB Fat Bob 107 Base 2018
Harley Davidson FXFB Fat Bob 107 Base 2019
Harley Davidson FXFBS Fat Bob 114 Base 2018
Harley Davidson FXFBS Fat Bob 114 Base 2019
Harley Davidson FXFBS Fat Bob 114 Base 2020
Harley Davidson FXFBS Fat Bob 114 Base 2021
Harley Davidson FXLR Low Rider 107 Base 2018
Harley Davidson FXLR Low Rider 107 Base 2019
Harley Davidson FXLR Low Rider 107 Base 2020
Harley Davidson FXLRS Low Rider S 114 Base 2020
Harley Davidson FXLRS Low Rider S 114 Base 2021
Harley Davidson FXSB Breakout Base 2017
Harley Davidson FXSE CVO Pro Street Breakout Base 2017
Harley Davidson FXST Softail Standard 107 Base 2020
Harley Davidson FXST Softail Standard 107 Base 2021
Harley Davidson XL1200C Sportster 1200 Custom Base 2018
Harley Davidson XL1200CX Roadster Base 2017
Harley Davidson XL1200X Forty-Eight Base 2021
Harley-Davidson FLFB Fat Boy 107 Base 2020
Harley-Davidson FLFB Fat Boy 117 Base 2025
Harley-Davidson FLFBS Fat Boy 114 Base 2022
Harley-Davidson FLFBS Fat Boy 114 Base 2023
Harley-Davidson FLHCS Heritage Classic 114 Base 2022
Harley-Davidson FLHCS Heritage Classic 114 Base 2023
Harley-Davidson FLHCS Heritage Classic 114 Base 2024
Harley-Davidson FLHFB Electra Glide Highway King Base 2023
Harley-Davidson FLHR Road King Base 2022
Harley-Davidson FLHRC Road King Classic Base 2019
Harley-Davidson FLHRXS Road King Special Base 2022
Harley-Davidson FLHRXS Road King Special Base 2023
Harley-Davidson FLHRXS Road King Special Base 2024
Harley-Davidson FLHRXS Road King Special Base 2025
Harley-Davidson FLHT Electra Glide Standard Base 2022
Harley-Davidson FLHTCUTG Tri Glide Ultra Base 2022
Harley-Davidson FLHTCUTG Tri Glide Ultra Base 2023
Harley-Davidson FLHTCUTG Tri Glide Ultra Base 2024
Harley-Davidson FLHTCUTG Tri Glide Ultra Base 2025
Harley-Davidson FLHTCUTG Tri Glide Ultra G.I. Base 2022
Harley-Davidson FLHTCUTGSE CVO Tri Glide Base 2022
Harley-Davidson FLHX Street Glide Base 2022
Harley-Davidson FLHX Street Glide Base 2023
Harley-Davidson FLHX Street Glide Base 2024
Harley-Davidson FLHX Street Glide Base 2025
Harley-Davidson FLHXS Street Glide Special Base 2022
Harley-Davidson FLHXS Street Glide Special Base 2023
Harley-Davidson FLHXSE CVO Street Glide Base 2022
Harley-Davidson FLHXSE CVO Street Glide Base 2023
Harley-Davidson FLHXSE CVO Street Glide Base 2024
Harley-Davidson FLHXSE CVO Street Glide Base 2025
Harley-Davidson FLHXST Street Glide ST Base 2022
Harley-Davidson FLHXST Street Glide ST Base 2023
Harley-Davidson FLHXU Street Glide Ultra Base 2025
Harley-Davidson FLI Hydra-Glide Revival Base 2024
Harley-Davidson FLRT Freewheeler Base 2022
Harley-Davidson FLRT Freewheeler Base 2023
Harley-Davidson FLRT Freewheeler Base 2024
Harley-Davidson FLRT Freewheeler Base 2025
Harley-Davidson FLSB Sport Glide 107 Base 2024
Harley-Davidson FLSTFI Fat Boy Gray Ghost Base 2025
Harley-Davidson FLTRK Road Glide Limited Base 2022
Harley-Davidson FLTRK Road Glide Limited Base 2023
Harley-Davidson FLTRK Road Glide Limited Base 2024
Harley-Davidson FLTRKSE CVO Road Glide Limited Base 2022
Harley-Davidson FLTRT Road Glide 3 Base 2024
Harley-Davidson FLTRT Road Glide 3 Base 2025
Harley-Davidson FLTRX Road Glide Base 2022
Harley-Davidson FLTRX Road Glide Base 2023
Harley-Davidson FLTRX Road Glide Base 2024
Harley-Davidson FLTRX Road Glide Base 2025
Harley-Davidson FLTRXRRSE CVO Road Glide RR Base 2025
Harley-Davidson FLTRXS Road Glide Special Base 2022
Harley-Davidson FLTRXS Road Glide Special Base 2023
Harley-Davidson FLTRXSE CVO Road Glide Base 2022
Harley-Davidson FLTRXSE CVO Road Glide Base 2023
Harley-Davidson FLTRXSE CVO Road Glide Base 2024
Harley-Davidson FLTRXSE CVO Road Glide Base 2025
Harley-Davidson FLTRXST Road Glide ST Base 2022
Harley-Davidson FLTRXST Road Glide ST Base 2023
Harley-Davidson FLTRXSTSE CVO Road Glide ST Base 2025
Harley-Davidson FXBB Street Bob 117 Base 2025
Harley-Davidson FXBBS Street Bob 114 Base 2022
Harley-Davidson FXBBS Street Bob 114 Base 2023
Harley-Davidson FXBBS Street Bob 114 Base 2024
Harley-Davidson FXBR Breakout 117 Base 2024
Harley-Davidson FXBR Breakout 117 Base 2025
Harley-Davidson FXFB Fat Bob 107 Base 2020
Harley-Davidson FXFBS Fat Bob 114 Base 2022
Harley-Davidson FXFBS Fat Bob 114 Base 2023
Harley-Davidson FXLRS Low Rider S 117 Base 2022
Harley-Davidson FXLRS Low Rider S 117 Base 2023
Harley-Davidson FXLRS Low Rider S 117 Base 2024
Harley-Davidson FXLRS Low Rider S 117 Base 2025
Harley-Davidson FXLRST Low Rider ST 117 Base 2022
Harley-Davidson FXLRST Low Rider ST 117 Base 2023
Harley-Davidson FXLRST Low Rider ST 117 Base 2024
Harley-Davidson FXLRST Low Rider ST 117 Base 2025
Harley-Davidson FXRST Low Rider El Diablo 117 Base 2022
Harley-Davidson FXST Softail Standard 107 Base 2022
Harley-Davidson FXST Softail Standard 107 Base 2023
Harley-Davidson FXST Softail Standard 107 Base 2024