Quote:
Originally Posted by Poor Richard
I was under the impression the carb'ed oval port 454's were making 285hp....?
Also, Bravoitis, anyone?
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Oval port 454s made 300 HP at the propshaft until they went with fuel injection and then they went up to 310 HP. I am pretty sure square port 454s made 365 HP at the propshaft until they went to fuel injection and then they went up to 385 HP. The most desirable of the square port motors have a gen VI block with a roller cam. I'm pretty sure the quickest way to spot one is the serpentine belt and starboard-facing flame arrestor on the intake. They'll say 454MAG EFI or 454MAG MPI depending on the year, but I think both of those engines are identical, unlike some early EFI/MPI designations where the EFI motors used two throttle body injectors and MPI motors used eight intake runner injectors.