Edelbrock 8-Exh Valves 1 81 X 4 93 Chrys 60929 Heads

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 Edelbrock #9643 Exhaust Valve is a 1.81" 1-piece, swirl-polished, hardened tip stainless steel valve with undercut stems for increased flow. Fits #60929 & #60189 Cylinder Heads Edelbrock part #17930 is a 155 Liter/Hr., in-tank fuel pump for the 1985-1997 Ford Mustang (except for 1996-1997 Mustang Cobra). Chrysler:Big-Block B-Series:383 (6.3L)/400 (6.6L);Chrysler:Big-Block RB-Series:413 (6.8L)/426 (7.0L)/440 (7.2L)