Piston ring gap

When you purchase new rings, there should be a cut sheet included that will give you the minimum gap settings. Different ring materials can carry different specs, which are also based on application (i.e. blown, nitrous, etc). Read the sheet and check the fit.

Standard(ized) ring sets usually don't require filing, and, if you want to ensure the best seal possilble, you may want to consider file-fit ring sets, but they do take patience and a little more time.

Southernman