Quote:
Originally Posted by wparsons
And two heads vs one, four cams vs two (plus all associated hardware), timing chain vs timing belt. Boxers are very heavy for aluminum 4 cylinders...
Digging further, it seems that maybe the 594 is without gearbox. I'm finding sites claiming 594 with gearbox and others claiming 750ish with gearbox.
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There is a little difference in cam length, head length/size, etc, as it is mostly just cutting stuff in half; it isn’t twice as much. The cams, yes, the belts, yes, but like you said, 750 with gearbox is more accurate.