I have to back Brent here. Displacement makes power and torque, if a longer stroke for a given displacement was to make anything different, it would only go down in HP and TQ assuming a valve shrouding problem due to the smaller bore.
As far as the bike pedal comparison, yes, there is leverage with the longer pedal, but there is a fatter rider with the bigger bore.
More surface area pushing down seems to equalize the leverage advantage if there is one
It is very wild, I used to think the same thing, but as long as they both breathe the same, a given setup will make almost identical HP and TQ per CID.
I also agree that rod length has been over-hyped, a nice stable piston with a good weight for the RPM desired and enough room to not hit the counterweights...after that, just connect them.
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1994 ERA Cobra, 496 Genesis FE TW (new addition to the stable)
70 Mustang Fastback, EFI 489 FE TKO-600, too much to list
71 F-100 4x4 EFI 461 FE restomod
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