MK136 Black Edition M8 Engine / M8 Bagger

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Experience unprecedented power with the S&S Cycles MK 136 Black Edition Milwaukee Eight Motor, a high-performance Oil Cooled 136" engine designed to accelerate the capabilities of your motorcycle. This powerhouse offers a plethora of enhancements and precision-engineered components that significantly boost both performance and reliability.

Key Features:

• High-Flow Cylinder Heads: Equipped with premium components including seats, guides, valves, springs, and seals, optimized for maximum airflow and efficiency.

• Oversized Valves: Features +1.00 mm oversized intake and exhaust valves, providing increased airflow for improved engine performance.

• Improved Valvetrain Geometry: Valves are 0.030" longer than stock, enhancing the valvetrain geometry for better engine dynamics and efficiency.

• High Lift Valve Springs: Capable of handling a maximum lift of 0.605", these springs ensure reliable valve function under extreme conditions.

• Enhanced Cooling: Enlarged cooling passages around the exhaust seats help dissipate heat more effectively, maintaining optimal engine temperature.

• Exclusive Breather Boxes: S&S’s exclusive breather boxes reduce oil carryover and promote better internal engine pressure balance.

Crankcase Features:

• Dual-Spray Piston Cooling Jets: Patented technology that provides superior cooling to the pistons, enhancing engine longevity.

• Precision Machined Oil Scraper: Improves oil control and reduces internal friction, leading to better performance.

• Enlarged Oil Sump: Increases oil capacity and improves lubrication throughout the engine.

• Contoured Floor Design: Facilitates more efficient oil return to the sump, ensuring optimal oil circulation.

Additional Highlights:

• Stock Engine Height Retention: Despite its enhancements, the MK136 maintains the stock engine height, allowing for straightforward installation without modifying the bike frame.

• Premium Components Included: Comes with forged pistons, an S&S performance oil pump and cam support plate, premium tappets and tappet cuffs, billet aluminum covers, a sprocket shaft spacer, Champion spark plugs, and a cam cover badge.

Why Choose the S&S Cycles MK 136 Black Edition Motor?

Choosing the S&S Cycles MK 136 Black Edition means opting for an engine that provides a significant upgrade in power, efficiency, and reliability. Whether for street riding or competitive racing, this motor is built to deliver exceptional performance and durability. With its comprehensive enhancements and high-quality components, the MK 136 Black Edition is an excellent investment for serious riders and enthusiasts looking to push their Milwaukee Eight motorcycles to the next level.

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NOTE:  RACE ONLY MODELS IS FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE. LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES WHICH MAY NEVER BE USED, OR REGISTERED OR LICENSED FOR USE, UPON A HIGHWAY. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR VEHICLE UNDER THE CLEAN AIR ACT.  Purchasing a race only product will require you to fill out form acknowledging that you are purchasing a Race Only product that is not legal for road use.