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

1-piece, swirl-polished, hardened tip stainless steel exhaust valves with undercut stems for increased flow. Hard-chromed valve stems are 11/32in. except where noted The Edelbrock #9772 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 Edelbrock part #182032 is a 80GPH In-Line Electric fuel pump featuring a blue anodized aluminum housing and high-quality internals, resulting in both a strong and durable design. Chevrolet:Small-Block Gen I:262 (4.3L)-400 (6.6L)