# S&S Cycle 17-23 Oil-Cooled M8 Touring MK136 Black Edition Engine

Introducing the next generation of Proven Performance for your 2017 & newer H-D Touring Models, the MK136 Engine.This is the newest version of the complete crate engines S&S is known for, ready to install in your M8 Touring bike. S&S took our MK-Series Crankcases, married them to the 136" cylinders and flywheels, and then fit High-flow cylinder heads with +1mm Valves and .605" springs. This huge displacement engine is sure to not only create huge power, but also put a huge smile on your face when you lay into the throttle. It is the purchaser's responsibility to consider the suitability for their application. Engine noise and damage from abuse is not covered under warranty.

-   1mm oversized intake and exhaust valves are .030" longer than stock for improved valve-train geometry, .605" max lift valve springs, high-strength alloy used in cylinder head casting, Enlarged cooling passage around the exhaust seats
-   Forged pistons, S&S performance oil pump and cam support plate, Premium tappets and tappet cuffs, Billet aluminum covers, Champion spark plugs, Includes Cam Cover Badge
-   Patented Dual-Spray Piston Cooling Jets, Precision machined oil scraper, Enlarged oil sump, Contoured floor allows oil to easily drain back to the sump
-   High-flow cylinder heads with premium seats, guides, valves, springs, and seals

This Part Fits:

Year

Make

Model

Submodel

2021

Harley-Davidson

FLH Electra Glide Revival

Base

2023

Harley-Davidson

FLHFB Electra Glide Highway King

Base

2017-2022

Harley-Davidson

FLHR Road King

Base

2017,2019

Harley-Davidson

FLHRC Road King Classic

Base

2017-2023

Harley-Davidson

FLHRXS Road King Special

Base

2019-2022

Harley-Davidson

FLHT Electra Glide Standard

Base

2017-2019

Harley-Davidson

FLHTCU Electra Glide Ultra Classic

Base

2017-2023

Harley-Davidson

FLHX Street Glide

Base

2017-2023

Harley-Davidson

FLHXS Street Glide Special

Base

2022-2023

Harley-Davidson

FLHXST Street Glide ST

Base

2017-2019,2022-2023

Harley-Davidson

FLRT Freewheeler

Base

2017-2019

Harley-Davidson

FLTRU Road Glide Ultra

Base

2017-2023

Harley-Davidson

FLTRX Road Glide

Base

2017-2023

Harley-Davidson

FLTRXS Road Glide Special

Base

2019

Harley-Davidson

FLTRXSE CVO Road Glide

Base

2022-2023

Harley-Davidson

FLTRXST Road Glide ST

Base

## Details

- **Price:** 17270.34 CAD
- **Vendor:** S&S Cycle
- **Type:** Engines

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 17270.34 CAD | In stock |

## Images

- User 1

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/s-s-cycle-17-23-oil-cooled-m8-touring-mk136-black-edition-engine)
> Updated: 2026-07-13