I have two correct stamped 4262 AC Fuel pumps. Both are similar, except for the bottom plates. One has the"AC" cast in the center with two screws 180 degrees apart, the other is plain with a single screw in the center.Also the fuel fitting port locations are quite different. Looking down in the mounted position, the "AC" one has fittings at 11:00 and 5:00. The plain one is about 4:00 and 8:00 One judge told me he likes both, having seen original engines with the plain bottom plate. I prefer the other one because its in better condition, has the correct GM gaskets, and the fitting locations make more sense. The top casings on both pumps are the same-- 4262 stamped on the right mounting flange and "AC" cast on the top.
My car is an early '56, No.336, which certainly affects many parts on the engine.
What do you think? Thank you so much for any feedback.
My car is an early '56, No.336, which certainly affects many parts on the engine.
What do you think? Thank you so much for any feedback.
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