Our Phathead Racing cylinder heads work great with big bore cylinder applications. They provide additional cooling capacity and make tuning easier by allowing fast and inexpensive compression ratio changes due to our interchangeable dome design. We can custom modify stock domes for any bore size within the limits listed for each dome family. For stroker motors due to the more complex tuning issues we no longer provide stroker dome modifications. Stroker dome modifications should be performed by an experienced motor builder. Our dome designs make custom stroker modification easy for any motor builder with access to a lathe. We stock all the popular big bore Wiseco pistons prices available upon request

We recommend sending your cylinder to Millennium Technologies (920.893.5595) for big bore and plating services. Power valves will also need to be cut back for piston clearance in the big bore cylinder