Ross Pistons ::

On all ROSS custom made pistons, you may specify the amount of spacing between the ring grooves. In most instances, moving the rings up higher (thin lands) on the pistons will allow the pistons to be lighter, as the side mill cut can then be wider. Care must be taken not to make the ring lands too narrow (especially the top land) as detonation or high cylinder pressure can break thin lands. We feel that in most instances the customer should "trust our judgment" about the ring spacing.