Engine Building Tools?

I would only use cast iron rings on a re-ring job. Moly rings need a nice round cylinder to be 100% effective. The cast rings rings are soft enough to be able to conform to the cylinder taper and out of roundness. A dingle-ball hone and cast rings will give you as good as seal as your going to get without boring. Tight ring gaps are not usually a problem with re-ring jobs but another tool that you could get is a ring filler.


Chuck