The A body and F body 67 Hood Tachs are different Part Numbers. The F body Hood tach face is black with green division lines and numbers where the A body tach face is blue with white division lines and numbers. So the tach in the pic is A body. The metal ring behind the glass is the same color as the face plate. The Hood tach face color always matched the interior gauge colors. The 6500 red line makes it 6 cylinder. Any 6 cylinder tach can be refaced with 5100 red line to make it 8 cylinder and calibration of the circuit board to 8 Cylinder. The P/N I have for this tach in a 1977 AC tachometer repair service bulletin is 6468436, but i would not take that as gospel and say the decal is not original. It is correct in that is does not have a line below the DO NOT EXCEED 180 DEG IN PAINTING and above the ink stamped P/N. The decals on 68 and up Hood Tach's did have a line between this nomenclature and the P/N.
Last edited by rctach; 03-23-2017 at 03:26 PM.
|