[Land-speed] Dumb Question # 4857 - Wrist Pin Diameters

[Larry Mayfield]

Ok, now that I have been educate on the facts that GM wrist pins are far 
more prevalent than the Ford pins, here is a corollary  question:  What 
the heck is up with the odd ball diameters of the pins? When I looked 
through a listing of pins, I don't think I found any with what I would 
consider a nominal dimension.  I mean, fords is 0.912 inches and GM's is 
0.927.  Why the odd dimension used?

mayf

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drmayf
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204.913 mph flying mile
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