I know the production figures of the engines I'm just stating that when most people think SIX PAK, they think awesome (which they are) I'm just saying the decrease in hp over the years shows. The six pak in 1971 is only 10hp more than my 1970 4bbl, which is not much. I guess those kinds of hp differences are never that far off: 1970 440-4bbl 375hp vs 1970 440-6bbl 390hp a whopping 15hp difference, the only one who was by itself was the HEMI.
Headers, exhaust some custom secrets and these engines are all on the same playing feild, well, maybe.
The SIX PAK is my ultimate engine, and is quicker down the 1/4 than the HEMI which IMO is a "little" overrated. The 6bbl has quicker take off and the HEMI has a better higher rpm range.
I'll take my 440s over a HEMI, yes there rare and yes they are qucik but I prefer the low down torque that the 440's produce.