In the continuous pursuit of horsepower, bigger is always better, and that’s where S&S Cycle comes in with its biggest big bore kit yet. Take your stock cases or the recently released MK-Series crankcase from S&S and match them to these massive 4.320-inch bore cylinders and pistons. When paired with the 4⅝-inch Stroker flywheel, this combination results in a heart-pounding 136-inch monster of a Milwaukee Eight engine that still perfectly fits in the Stock chassis. Available with highlighted fins, non-highlighted fins and Black Granite options, there is sure to be a finish to fit your build. To find more information and detailed specs, check out the S&S website.