S&S 124" Big Bore Bolt-In Kit Milwaukee 8 M8 107 17-25

Transform your ride with the ultimate power upgrade for your Milwaukee-Eight engine. Designed by S&S Cycle, this 124" Big Bore Bolt-In Kit is engineered to deliver a massive increase in displacement and performance without the need for crankcase machining. It is the perfect solution for riders looking to maximize the potential of their 107" powerplant while maintaining reliability and ease of installation.

This kit features precision-engineered components designed to withstand the rigors of high-performance riding. The updated profile ensures a seamless fit with the stock bolt pattern, making this a straightforward bolt-in performance upgrade that integrates perfectly with your existing drivetrain.

• 4.250" bore for maximum displacement and power gains.
• Updated profile with stock bolt pattern 4.840" for easy installation.
• High-quality construction from a trusted leader in V-Twin performance.
• Note: Not for 121" CVO models.

Whether you are building a performance bagger or looking for more torque on your Softail, this big bore kit provides the displacement you need for a more aggressive and responsive throttle. Experience the precision engineering and legendary performance that S&S Cycle is known for across the industry.