67 390 OIL BREATHER CAP - CHROME - TWIST - OPEN EMMISSION

This twist version cap is the concours correct applicationfor all 1965-1967 390 engines that had chrome valve covers and without emission control. Will also fit 68-70 390-428 valve covers as well as 68-73 Small Block Valve Covers that require a Twist-On Cap and are not using Factory Emissions.