S&S CYCLE 4-1/2" Stroke Flywheel with Full Width Rods and balancer gear for M8 Models '17-'23 - 320-0603
The flywheels are the heart of any performance engine and S&S Cycle has been perfecting the art for over six decades. Stronger, more durable, and trued to a spec others can only dream of, the new cranks for the Milwaukee-Eight® platform are the best of the best to build your high performance engine around.
FEATURES & BENEFITS
- 4-1/2" Stroke (114 or 128ci)
- Balance Gear installed
- Heat Treated 4140 Material is harder & more than twice as strong as stock
- Stronger assembly eliminates need to weld crankpin
- Capable of higher RPM - More available power!
- S&S High Strength Connecting Rods are designed with Finite Element Analysis to eliminate weak spots and handle more power!
- Full width wristpin connecting rods (requires S&S Performance Pistons)
- Balanced for S&S Performance piston weight (1213g)
- Perfect for Gear Drive Cams
- Consistent balance & precision machining
- Capable of higher RPM – More available power!
Fitment Guide
| 2023 | Harley-Davidson | FLHFB Electra Glide Highway King | - | - |
| 2023 | Harley-Davidson | FXBR Breakout 117 | - | - |
| 2022-2023 | Harley-Davidson | FLTRKSE CVO Road Glide Limited | - | - |
| 2022-2023 | Harley-Davidson | FLTRXST Road Glide ST | - | - |
| 2022-2023 | Harley-Davidson | FXLRST Low Rider ST 117 | - | - |
| 2022-2023 | Harley-Davidson | FLHXST Street Glide ST | - | - |
| 2022-2023 | Harley-Davidson | FXLRS Low Rider S 117 | - | - |
| 2022 | Harley-Davidson | Softail Street Bob FXBB | - | - |
| 2022 | Harley-Davidson | FXRST Low Rider El Diablo 117 | - | - |
| 2021-2023 | Harley-Davidson | FXBBS Street Bob 114 | - | - |
| 2021 | Harley-Davidson | FLH Electra Glide Revival | - | - |
| 2020-2023 | Harley-Davidson | FLTRK Road Glide Limited | - | - |
| 2020-2021 | Harley-Davidson | FXLRS Low Rider S 114 | - | - |
| 2019-2022 | Harley-Davidson | FLHT Electra Glide Standard | - | - |
| 2019-2020 | Harley-Davidson | FXDRS FXDR 114 | - | - |
| 2018-2023 | Harley-Davidson | FLHCS Heritage Classic 114 | - | - |
| 2018-2023 | Harley-Davidson | FLFBS Fat Boy 114 | - | - |
| 2018-2023 | Harley-Davidson | FXFBS Fat Bob 114 | - | - |
| 2018-2020 | Harley-Davidson | FXBRS Breakout 114 | - | - |
| 2018-2020 | Harley-Davidson | FLTRXSE CVO Road Glide | - | - |
| 2017-2023 | Harley-Davidson | Electra Glide Police FLHTPI | - | - |
| 2017-2023 | Harley-Davidson | Road King Police FLHP | - | - |
| 2017-2023 | Harley-Davidson | FLHRXS Road King Special | - | - |
| 2017-2023 | Harley-Davidson | FLHTK Ultra Limited | - | - |
| 2017-2023 | Harley-Davidson | FLHXS Street Glide Special | - | - |
| 2017-2023 | Harley-Davidson | FLTRXS Road Glide Special | - | - |
| 2017-2023 | Harley-Davidson | FLHX Street Glide | - | - |
| 2017-2023 | Harley-Davidson | FLHXSE CVO Street Glide | - | - |
| 2017-2023 | Harley-Davidson | FLTRX Road Glide | - | - |
| 2017-2022 | Harley-Davidson | FLHR Road King | - | - |
| 2017-2021 | Harley-Davidson | FLHTKSE CVO Limited | - | - |
| 2017-2019 | Harley-Davidson | FLHTKL Ultra Limited Low | - | - |
| 2017-2019 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic | - | - |
| 2017-2019 | Harley-Davidson | FLTRU Road Glide Ultra | - | - |
| 2017-2019 | Harley-Davidson | Electra Glide Ultra Classic EFI FLHTCUI | - | - |
Specs
| PRODUCT NAME | FLYWHEEL ASSEMBLY |
| MATERIAL | FORGED STEEL |
| STROKE LENGTH | 4-1/2" |
| FEATURES | FULL WRIST PIN |
| UNITS | EACH |
| RIDING STYLE | STREET |
Delivery Info
Please Note - Warehouse Locations For This Part -
S&S CYCLE 4-1/2" Stroke Flywheel with Full Width Rods and balancer gear for M8 Models '17-'23 - 320-0603
Gold Coast Warehouse- If your parts are in stock at our Gold Coast warehouse at the time of order, they will be shipped within 24hrs.
Supplier Warehouse - 2-3 Week Delivery- If your parts are located at our Supplier Warehouse, Delivery ETA is approx 2-3 weeks, as the parts are likely coming from our USA supplier warehouse. We will notify you once we receive it in Gold Coast warehouse and its on its way to you.