Regardless of brand, physics and airflow still apply. My 427 BBC .060 0ver =440 made 550 hp. Bore and stroke are the same as a 440 Dodge. 4.310 bore and 3.75 stroke. 11.25-1 compression with an Eddy rpm performer head. Heads for an oval port BBC are 280 cc intake runner. same head in a Dodge is 210 CC runner same head on my 426 wedge. The Eddy victor head for a Dodge is 280 CC intake runner.
Here is a cool fact my 440 BBC made 550 hp and 513 tq. My 426 wedge made 520 hp and 552 tq, with less head, cam and compression. Both engines had RPM performer heads and intake. Cam spec for the 427 was .585/.585 lift and .245/.255 @.050 was a hyd roller.
Mopar 426 cam is a lunati solid lifter cam. .544/.566 with .241//
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It takes parts to make 500 actual flywheel HP. where you make the power depends on type of parts used. My 426 wedge motor made 516 tq at 2900 rpm with the 210 cc heads.
The larger 280 cc heads will reduce air speed and move the power band up higher. Smaller heads work great on small cube motors, amd makes good torque.
Go to a reputable engine builder and come up with a goal. If you want 500 hp pick the right parts top work in the car the way you want it too.
