S&S Cycle Boring Plate Kit

• Designed to simplify and reduce the time required to prepare crankcases and cylinder heads for S&S Cycle Sidewinder big bore kit installations

• Machined cast iron with precision ground working surfaces

• This boring plate kit has panhead and shovelhead head bolt patterns in one end. The other end is machined with the cylinder base patterns of 1936-99 Big Twin engines, and 1986-2003 Harley-Davidson Sportster models. Spacers are available for Evolution engines which allow the cases to be bored without removing the cylinder studs.

• Spacers are not included in this kit.