This Moroso non-hooded valve cover breather has a 1.75-inch inner diameter and is offered as a valve cover-mounted breathing outlet. The non-hooded design keeps a low profile while providing a larger ID connection point for ventilation plumbing. It is intended for installations where a 1.75-inch ID breather opening is required on valve covers.
Moroso 1.75in ID Non-Hooded Valve Cover Breather