Boring out cylinders today!
This video details the process of boring and honing motorcycle cylinders, specifically Shovelhead and Panhead models, to achieve optimal piston fit and compression. It covers precise measurement techniques, the use of Sunnen stroker and honing machines with different grit stones, and lathe work to adjust compression ratios. The expert demonstrates how to achieve a fine cross-hatch finish for proper ring seating and discusses the trade-offs between cast and forged pistons.









