The Edelbrock #9643 1.81" exhaust valve is a one-piece, swirl-polished stainless steel valve with a hardened tip and undercut stem for increased flow. Overall length is 4.928". Sold as a set of eight, these valves are specified to fit Edelbrock heads 60929 and 60189, intended for Mopar 440 cylinder head applications.
Edelbrock 8-Exh Valves 1 81 X 4 93 Chrys 60929 Heads