Wonder why the older cams have the wider lobes if it was unneeded, I'd imagine they had the technology back then to understand it was unused.
Might be more in play than we realize. Larger lobes might play some part in the manufacturing process, perhaps easier to get an accurate lobe taper etc.
In operation ... maybe a larger lobe drags more oil to the center of the lobe.
Back in the day, just like today, they were pretty good at shaving off pennies, makes me think there may have been a reason for wider lobes.
Or I guess it might be as simple as back then a wider lobed casting could be used for more different applications.
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