the 440 wedge was never meant to be what the 426 hemi is

the block is weak
2 bolt mains
small port heads

if the max wedge moter was built past 1964 the maxwedge head would have improved , instead it was dropped to build the 426 hemi


as migthy as the hemi is

the wedge head stands beside it

two diffrent engines

compare the 426 hemi to fords 427 - 429 hemi

1.39 9.85 - 137 mph