SINGLE CYLINDER SURFACING
Some single cylinders are tough to mount to a surface machine because of their irregular shapes and lack of external bolt holes. On these, I’ll tap a couple of adjacent head bolt holes and use thread inserts to hold them down from the bottom. As long as you don’t get into dowel pin counterbores, it’s a not problem. I have a flat surface plate I made just to mount things to my surfacer with. Harley heads, snowmobile cases, etc. anything that bolts down. Here’s an example of how I can surface a freshly sleeved single cylinder on that fixture from the head bolt holes.
North Branch, MN