David Vizard, Uncle Tony's garage, Unity motorsport. Mission impossible Dodge 302 Head porting

That would have been nice for us hot-rodders here 20 years later but even before the Magnum came out the only vehicles getting V-8s were trucks and SUVs. Not much benefit to having a big-port head on an engine that will rarely see over 4000 RPM and needs stump-pulling torque for doing truck things.

Yeah the 5.7L Hemi is put in trucks and they have giant head ports but those engines don't pull down low like a 5.9L Magnum does.
All this talk of truck and passenger car engines is funny. Chrysler Australia took a "truck engine" that was designed in the US but not used because they needed a replacement for the slant 6. They needed a performance version so they sent one to Italy to have the Italians design the induction system and stuck it in a short wheel base A body and ran 14.1's in the quarter in the early 70's with a 265 ci inline 6. Not bad for a "truck engine"