The Edelbrock #9786 1.60" exhaust valve is a one-piece, swirl-polished stainless steel valve with a hardened tip and undercut stem to increase flow. Overall length is 5.020" and it’s sold individually. It’s specified to fit Edelbrock Victor Jr cylinder heads #77619, #77629, #77639 and #77649 for reliable exhaust service.
Edelbrock 1- Victor Jr SBC Ex Valve 1 600 X 5 010