- Jan 2, 2004
Yea, the vaunted Ford Vulcan 3.0L made 150-155hp in its final years - the OHC Japanese and 2.7L Mopar competition made more. Same thing with the Mopar 3.3/3.8L, Ford Essex 3.8L/4.2L and GM 3800(no blower)/3.9L, the Japanese competition used on the Odyssey/Sienna and the later Quest still made more power with less displacement.Most of the current pushrod engines do have VVT.
In more displacement limited 4 and 6 cylinder applications I believe it really does come down to power density more than anything.
However, the American pushrod motors have more of a torque emphasis, the Japanese V6s for the exception of the Nissan VG30/33 non-DOHC/turbo versions have more of a high-RPM horsepower bent.