I'm not talking extreme here. I'm asking if the hemi head actually has a performance advantage now with the average aftermarket aluminum wedge head. As in take a stock street hemi, build a wedge to same specs only with rpm/440 source/indy heads, does the hemi have the advantage still?
a street hemi is a POS, a 440 mag would eat them up like nothing. The real question is your scenario and a race hemi...
a street hemi is a POS, a 440 mag would eat them up like nothing. The real question is your scenario and a race hemi...
"The street Hemi version was rated at 425 bhp (316.9 kW)(Gross) with two Carter AFB carburetors. In actual dynomometer testing, it produced 433.5 horsepower and 472 lb·ft (640 N·m) torque in purely stock form.[5] Interestingly, Chrysler's sales literature[6] published both the gross 425 hp (317 kW; 431 PS) and net 350 hp (261 kW; 355 PS) ratings for 1971."
350 HP is a POS? those are big numbers for 1971, comparable to what 500 HP would be these days to people (a big deal)
The newer motor is an improvement on the old, just like the 426 was an improvement on the original Hemi. I'd take a modern SRT 6.4 in my muscle car over a 65-71 426 anyway.
:wack:Here is a wide shot of the 426 (top) and 392 (bottom) heads. Not the spark plug position is exactly opposite from each other. I don't know all of the specifics, but something about the early Hemi design makes it more a more efficient design where they located the plug.
a street hemi is a POS, a 440 mag would eat them up like nothing. The real question is your scenario and a race hemi...
With modern aftermarket heads, is there a distinct advantage to the hemi now? From my limited understanding, flow was the major advantage to the hemi over the wedge.