Curious - why is a 304 flexplate different from a 360?
Just wondering - I know that all the AMC V8s are externally balanced with unique flexplates, flywheels, balancers, etc. etc.
I can see why the 401 would be different from the 360 (different crank), but I understood that the 304 and 360 cranks are the same. I've also seen claims that the 304 and 360 cast factory flywheels are the same except (maybe) for the drilled balance holes.
Which is it, and if the 304 and 360 cranks are the same, what part of the rotating assembly is different enough to make the balance different between the two engines? Did the factory use the same flywheel casting for the 304 and 360 and machine them differently? If so, how to tell the flywheels apart after they have been separated from the engines?
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