Hawks Motorsports CBW-147 Features:

Manufactured right here in the USA this this valve cover adapter replaces the original oil fill cap included with Holley valve covers or any aftermarket valve covers with a 1 5/16-12 (16AN) thread pitch. It is CNC-machined right here in the USA from billet aluminum for precise fit, and the included O-ring is specially designed to prevent oil seepage at the base of the adapter. The top of the adapter is machined to accept a -10AN hose end to facilitate the installation of a custom catch can. Product comes as shown in pictures. Product is CNC Machined Billet Aluminum. All Hawks Motorsports Billet Parts are made right here in the USA! We design our Billet parts as upgraded pieces for the factory part they are replacing. We use our experience & expertise from 25+ years of business to test the durability and quality of every product we produce to ensure Hawks products will last for years to come!Don't fall for imitation parts, demand the best for your ride!