S&S Cycle has created kits specifically engineered to work with both, 107" and 114" M8 engines that require no case boring, no special cams or any other permanent modifications to your machine. And most certainly, the old adage "no replacement for displacement" applies here. When properly tuned, you'll absolutely feel the difference when you open the throttle.

It's all there, in one kit: cylinders, pistons & gaskets along with a set of easy-to-follow installation instructions. In fact, the instructions are so good they even include the requisite cylinder bolt torque values for an easy, solid installation. Or at least, about as easy of an installation as you can have when replacing major top-end components. Of course, given the change in fueling requirements, you'll absolutely want to add a fuel controller to your order so as to get the best possible benefit for the added displacement.



We have these kits available for all M8 models with part numbers designed for 107" or 114" bikes in black or black fins with silver highlights.

Available to ship straight to your door, give us a ring anytime between 10am to 6pm EST and we'll be happy to help get the most from your Milwaukee Eight engine.