Edelbrock exhaust valves (set of eight) for 348/409 W-Series Big-Block Chevy heads are one-piece, swirl-polished stainless steel valves with hardened tips and undercut stems to increase flow. These 1.72" valves have an overall length of 5.100" and are intended as direct-fit replacements for the specified Edelbrock W-Series cylinder heads, delivering improved exhaust flow characteristics for compatible BBC applications.
Edelbrock Valve Exhaust 348/409 W-Series BBC (60809 and 60819) Set of 8 Valves