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S&S Cycle High Compression 132" / 136" Big Bore Kit For Harley Milwaukee-Eight 2017-2025

Name: S&S Cycle High Compression 132" / 136" Big Bore Kit For Harley Milwaukee-Eight 2017-2025
Brand: S&S Cycle
SKU: 10526378
Price: 1695.95 USD
Availability: OutOfStock

Item: P1156449

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The High-Compression 136 and 132 Big-Bore Kits enhance motorcycle performance significantly, providing increased torque and horsepower alongside a mor… Read More

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S&S Cycle High Compression 132" / 136" Big Bore Kit For Harley Milwaukee-Eight 2017-2025

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Product Description

Part Numbers

Fitment

Instructions

S&S Cycle High Compression 132" / 136" Big Bore Kit For Harley

The High-Compression 136 and 132 Big-Bore Kits enhance motorcycle performance significantly, providing increased torque and horsepower alongside a more aggressive throttle response. These kits represent the largest bolt-on options available and function seamlessly with standard crankcases, avoiding the need for machining and maintaining original engine serial numbers. The factory-matching powder coat finish contributes to a sleek appearance while ensuring simple installation through retaining the factory engine height. Each kit includes gaskets to facilitate the upgrade process. Designed for those looking to unlock additional performance and power, the 136 and 132 Big-Bore Kits deliver a thrilling riding experience.

Compatibility is limited to H-D's 4-1/2 stroke engines (114" and 117") with the requirement of an S&S 4-5/8" Flywheel Assembly to achieve 136". These kits are not compatible with the HD 4-5/8" flywheel.

Features:

Higher compression for more performance
4.320" Bore
Available in a variety of finishes to match your engine
Big-bore Kits are complete with gaskets
Made in the USA

Specs:

4.5" Stroke with 88cc Chamber Volume
- 132 cu in / 0cc Pistons = 11.7:1 compression
- 132 cu in / 8.5cc Pistons = 12.7:1 compression
4.5" Stroke with 94cc Chamber Volume
- 132 cu in / 0cc Pistons = 11.1:1 compression
- 132 cu in / 8.5cc Pistons = 12:1 compression
4.625" Stroke with 88cc Chamber Volume
- 136 cu in / 0cc Pistons = 12:1 compression
- 136 cu in / 8.5cc Pistons = 13:1 compression
4.625" Stroke with 94cc Chamber Volume
- 136 cu in / 0cc Pistons = 11.4:1 compression
- 136 cu in / 8.5cc Pistons = 12.3:1 compression

Product Style	J&P Cycles Item #	Catalog Number	Store Sku	MFR. Product #	Availability
Product Style Black / 0cc Dome Pistons	J&P Cycles Item #10526374	Catalog Number10526374	Store Sku	MFR. Product #910-1009A	AvailabilityOut of Stock
Product Style Black / +8.5cc Dome Pistons	J&P Cycles Item #10526377	Catalog Number10526377	Store Sku	MFR. Product #910-0910A	AvailabilityOut of Stock
Product Style Black / Highlighted Fins / 0cc Dome Pistons	J&P Cycles Item #10526373	Catalog Number10526373	Store Sku	MFR. Product #910-1008A	AvailabilityOut of Stock
Product Style Black / Highlighted Fins / +8.5cc Dome Pistons	J&P Cycles Item #10526376	Catalog Number10526376	Store Sku	MFR. Product #910-0909A	AvailabilityOut of Stock
Product Style Black Granite / Highlighted Fins / 0cc Dome Pistons	J&P Cycles Item #10526375	Catalog Number10526375	Store Sku	MFR. Product #910-1010A	AvailabilityOut of Stock
Product Style Black Granite / Highlighted Fins / +8.5cc Dome Pistons	J&P Cycles Item #10526378	Catalog Number10526378	Store Sku	MFR. Product #910-0911A	AvailabilityOut of Stock

This product DOES NOT FIT your 2020 Indian Scout Bobber Sixty

Fitment Notes & Exceptions

The displacement for these is defined by the stroke.
They will only work with H-D's 4-1/2 stroke (114" and 117"), though, in terms of "stock" stroke.
To reach 136", you will need to use the S&S 4-5/8" Flywheel Assembly.
They will not work with the HD 4-5/8" flywheel.

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 CVO/SE FLHTKSE 2017, 2018, 2019, 2020, 2021; Electra Glide Ultra Limited FLHTK 2017-2024; Electra Glide Ultra Limited Low FLHTKL 2017, 2018, 2019; Freewheeler FLRT 2017-2025; Road Glide 3 FLTRT 2023, 2024, 2025; Road Glide CVO/SE FLTRXSE 2018-2025; Road Glide CVO ST FLTRXSTSE 2024, 2025; Road Glide FLTRX 2017-2025; Road Glide Limited CVO FLTRKSE 2022, 2023; Road Glide Limited FLTRK 2020, 2021, 2022, 2023, 2024; Road Glide Special FLTRXS 2017-2023; Road Glide ST FLTRXST 2022, 2023; Road Glide Ultra FLTRU 2017, 2018, 2019; Road King FLHR/I 2017-2022; Road King Special FLHRXS 2017-2025; Softail Breakout 114 FXBRS 2018, 2019, 2020; Softail Breakout 117 FXBR 2023, 2024, 2025; Softail Breakout FXBR 2018, 2019; Softail Deluxe FLDE 2018, 2019, 2020; Softail Fat Bob 114 FXFBS 2018-2023; Softail Fat Bob FXFB 2018, 2019; Softail Fat Boy 114 FLFBS 2018-2024; Softail Fat Boy FLFB 2018, 2019, 2025; Softail FXDR 114 FXDRS 2019, 2020; Softail Heritage Classic 114 FLHCS 2018-2024; Softail Heritage Classic FLHC 2018, 2019, 2020, 2021, 2025; Softail Low Rider FXLR 2018, 2019, 2020; Softail Low Rider S FXLRS 2020-2025; Softail Low Rider ST FXLRST 2022, 2023, 2024, 2025; 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 114 FXBBS 2021, 2022, 2023, 2024; Softail Street Bob FXBB 2018, 2019, 2020, 2025; Street Glide CVO/SE FLHXSE 2017-2022; Street Glide FLHX/I 2017-2023; Street Glide Special FLHXS 2017-2023; Street Glide ST FLHXST 2022, 2023

S&S Cycle High Compression 132" / 136" Big Bore Kit For Harley Milwaukee-Eight 2017-2025 Instructions

Instructions (pdf)