Quote:
Originally Posted by Dwight Southerland
Seven Liters (427 cubic inches) and 425 hp was the pinnacle for advertising for several years in the 1960s. Comparing a '63 409-425hp, a '63 Ford 427-425hp, a Pontiac 421-420hp, or a '62 MoPar 413-420hp in their original form to the later Hemis, High Rise Fords, or Chev L72/L88/ZL1, you know that something is just not right with the ratings.
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The 62 409 was actually 409 hp rated.
The 63 was 425, with not much difference in specs, if any.
There's a perfect example for Dwight's previous post .
The 62 has been reduced through the current system, but nowhere near enough.
The single 4 , 380 /365 hp needs about 65 more off it ,with that small carburetor.