Edelbrock 8- Chev E-Tec 170 Exh Valves 1 550 X 4 930

The Edelbrock #9773 Exhaust Valve is a 1.55" 1-piece, swirl-polished, hardened tip stainless steel valve with undercut stems for increased flow. Fits Edelbrock #60797 Cylinder Heads Overall Length: 4.930" Set of 8 Valves