Feuling Breather Valves Twin Cam

As cubic inch goes up your too end needs to evacuate more air things Feuling breather valves are the tool for the job!

• Kit includes billet breather housings, gaskets, breather filter elements, umbrella valves, top rocker cover gaskets and ARP® hardware
• Machined from billet 6061 aluminum with square surfaces promoting excellent gasket and breather system sealing
• Properly sized breather holes for optimum engine breathing
• Made in the U.S.A.