426/440 Mopar Crank Hub?

Is the 440/426 crank hub the same inside diameter as the 392 Hemi hub?...

 

I would say no on the 413/440, I finally had to replace my original harmonic balancer last year and bought one from Hot Heads, it's a modified SFI approved 318/340 balancer, fits diameter wise, the key way was cut to the size for the Hemi. The 318/340 and 413/426/440 are listed separately in parts catalogs.

 

All the same diameter, different key size and location.


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