Originally Posted by Cab_Burge
Mopar stop making those motors for a reason, they weren't efficient or powerful down work twocents
The 273 L.A. motors made more power and got better mileage than any of the 305, 318,325, 331 or 354 C.I. poly motor in any of the Mopar cars or trucks scope


You are talking about the early 60s here, Mopar put dual quads on those A motors and they made almost as much HP as the early Hemi's did. The reason Mopar quit making them was because they were too big for the downsized engine compartments, and because they were too expensive to make. Mopar (and most everyone else) wasn't too concerned about efficiency until the mid 70s gas shortages..