S&S Cycle has built American V-twin performance parts in Viola, Wisconsin since 1958 — flywheels, carburetors, cams, cylinder heads and complete crate engines. When a Harley owner talks about a 124, a 128 or a 131 build, they are usually talking about S&S. Few names carry more weight with engine builders in this space.
The S&S Cycle MK136 Crate Engine is a complete, ready-to-install performance powerplant for 2017-2023 Harley-Davidson Touring models with Milwaukee-Eight engines. Delivering a massive 136 cubic inches of displacement, this engine is built on S&S forged crankcases and features high-flow cylinder heads with oversized valves. It's the ultimate upgrade for riders seeking extreme power and reliability.
When stock power isn't enough, the S&S Cycle MK136 Crate Engine provides an unparalleled performance solution for your Harley Milwaukee-Eight Touring. This isn't just a big-bore kit; it's a meticulously engineered, complete engine built from the ground up to deliver maximum power and torque. Every component, from the forged crankcases to the high-flow cylinder heads and oversized valves, is selected and assembled to S&S's exacting standards, ensuring a reliable and exhilarating riding experience.
The S&S Cycle MK136 Crate Engine is designed for direct installation into 2017-2023 Harley-Davidson Touring models, replacing your Milwaukee-Eight powerplant with a significant upgrade. This complete unit saves you the complexity and time of a custom engine build, offering a dyno-proven package that's ready to hit the road. It's the ideal choice for performance bagger enthusiasts who demand the highest levels of power and reliability from their Harley.
Is this a complete engine ready to bolt in?
Yes, the S&S Cycle MK136 is a complete crate engine with all internals, cylinder heads, and covers assembled, ready for direct installation into your 2017-2023 Harley-Davidson Touring model.
Will this engine fit my older Harley Touring model?
This S&S MK136 Crate Engine is specifically designed for 2017-2023 Harley-Davidson Touring models equipped with Milwaukee-Eight (M8) engine mounts. It will not fit earlier Twin Cam or Evolution models.
Does this engine come with a warranty?
Please refer to the manufacturer's documentation or contact us directly for specific warranty information on S&S Cycle crate engines.
| BRAND | S&S Cycle |
| TYPE | Engines |
| SKU | T14-714620 |
| WEIGHT | 173.0 lb |
HOLY FCKN HELL!! I?m still in the break-in, running a rich, easy ECM map, but I can tell this bike is a monster now! Loads of torque, and power. I went wit lunch rekluse clutch, plates, and compensator, and she?s just fckn ugly. I?ll update after the 1k break-in and dyno tune. She?s so damn sexy. I?m riding a 2018 FXFBS Fatbob. She was 114ci, but now 128ci.
