[Mulana]

Prowbar: I'm not sure if my response to your reply made it or not, so I am trying again:

Yes, you are correct about the offset on the big crank flywheels. I have measured out everything directly off the crankshaft of my 432 and will have a mild-steel version cut out first to make sure the dimensions are correct. If they are, I will have the hardened steel versions cut in the shape of a ring for simplicity instead of individual tabs.

I measured my six-lug flywheel tabs, and they are .060 in thickness.

Do you know if the 305's and the 351's use the same flywheel bolt pattern? I am measuring an offset on my 351 flywheel. I have all three tabs for the 351, and they are not the same. As you mentioned with the 478 tabs, one of the 351 tabs has an identifier hole in it to separate it from the rest.

Thanks again for your quick replies, Jim Mx.