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2024 Harley Davidson Softail Standard FXST
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This product will fit your 2024 Harley Davidson Softail Standard FXST
S&S Cycle

S&S Cycle 129" Big Bore Kit For Harley 107" Milwaukee-Eight 2017-2026

Item: P1033521
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Current price is $1,643.95
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S&S Cycle 129" Big Bore Kit For Harley 107" Milwaukee-Eight 2017-2026 Instructions

S&S Cycle 129" Big Bore Kit For Harley 107" Milwaukee Eight

S&S Cycle turns the 107 cubic inch Milwaukee-Eight into a 129 cubic inch engine with this bolt-on big bore kit. It features a 4.32" bore and an 11:1 compression ratio. The cylinder and piston kit is built to handle a high-lift cam while keeping Harley-Davidson M8 models running on pump gas. No case mods and no engine removal are required, just a serious set of jugs designed, tested and manufactured in the USA.

Features:

  • Huge bore increase means huge power increase 
  • Works with stock crankcases (no machine work) 
  • Powder coat finish matches factory finish 
  • MLS (multi-layered steel) head gaskets 
  • 4.320" Bore 
  • Retains stock engine height 
  • Includes cubic inch cam cover badge 
  • Made in USA  
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Please review this product's fitment notes & exceptions prior to purchase: Add to Cart
This product will fit your 2024 Harley Davidson Softail Standard FXST
Fitment Notes & Exceptions
  • This product is not legal for street use on an emissions-controlled vehicle. It may be used on dedicated competition or pre-pollution-controlled vehicles only.
  • Fits models with 107" Milwaukee Eight engines only

This Product Fits:

Harley Davidson
Electra Glide Standard FLHT 2019, 2020, 2021, 2022
Electra Glide Ultra Classic FLHTCU/I 2017, 2018, 2019
Electra Glide Ultra Limited FLHTK 2017-2024
Electra Glide Ultra Limited Low FLHTKL 2017, 2018, 2019
Revival FLH 2021
Road Glide 3 FLTRT 2026
Road Glide CVO ST FLTRXSTSE 2024, 2025, 2026
Road Glide FLTRX 2017-2026
Road Glide Limited FLTRK 2020, 2021, 2022, 2023, 2024
Road Glide Limited FLTRXL 2026
Road Glide Special FLTRXS 2021, 2022, 2023
Road Glide ST FLTRXST 2022, 2023
Road Glide Ultra FLTRU 2017, 2018, 2019
Road King FLHR/I 2017-2022
Softail Breakout FXBR 2018, 2019
Softail Deluxe FLDE 2018, 2019, 2020
Softail Fat Bob FXFB 2018, 2019
Softail Fat Boy FLFB 2018, 2019
Softail Heritage Classic FLHC 2018, 2019, 2020, 2021
Softail Low Rider FXLR 2018, 2019, 2020
Softail Low Rider S FXLRS 2020-2026
Softail Low Rider ST FXLRST 2022, 2023, 2024, 2025, 2026
Softail Slim FLSL 2018, 2019, 2020, 2021
Softail Sport Glide FLSB 2018, 2019, 2020, 2021
Softail Standard FXST 2020, 2021, 2022, 2023, 2024
Softail Street Bob FXBB 2018, 2019, 2020
Street Glide CVO ST FLHXSTSE 2026
Street Glide FLHX/I 2017-2026
Street Glide Limited FLHXL 2026
Street Glide Special FLHXS 2021, 2022, 2023
Street Glide ST FLHXST 2022, 2023
Street Glide Ultra FLHXU 2025
Product Style Item # Store SKU Manufacturer Product # Availability
Product Style Non-Highlighted Fins Item # 10555235 Store SKU Manufacturer Product # 910-0844A Availability In Stock: Ships within 24 hours
Product Style Highlighted Fins Item # 10555234 Store SKU Manufacturer Product # 910-0843A Availability In Stock: Ships within 24 hours
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