Baffled valve cover breather grommets are designed to virtually eliminate oil breather blow by, a common problem encountered on non baffled valve covers with push on breathers.
These grommets simply replace the 1.22" O.D. grommets used on popular aftermarket valve covers such as those made by Edelbrock, Moroso, Mr. Gasket, Transdapt, and Holley.
One inch inside diameter accepts all popular push on breather designs.
Extends 1 1/4" into the valve cover.