Actually Drew, I think that Brad has you on the right track,
even if your a purist, or 95% purist as I try to be. I'm not
restoring for show, she's just a driver for my enjoyment.
However she is a 1950 and all thing were original, un-restored,
and never replaced according to the original owner of the
truck.
http://www.pbase.com/dennygraham/image/158851949
As you can see, the left and the right are slightly different,
just as they are in the pair that you have. Don't be misslead
by the fresh black paint and new bolts, those are the
original rods in their original position.

So-----what can we deduce from that? Perhaps the lefts were
made in California and the rights were made in Virginia.
Perhaps the left dies wore out before they could run the
swages on the rights and a different die was used. Perhaps
they had some left over lefts from the year before and were
using them up. Other than the slight difference in the shape
of the swage they are the same rod and I'd bet a dollar to
a doughnut that there were two big tubs of rods, one on the
right and another on the left. And two assemblers each
pulling rods from their own supply which obvously were
from different batches.
It all boils down to supposition and there isn't a judge in
the world that could prove you right or wrong.
Yep---just another Chevy/GM idiosyncrasy's you needn't pay
any attention to. Stovebolts are great!
Ahh, those subtle details, that's what keeps it interesting.

Denny Graham
Sandwich, IL

Last edited by Denny Graham; 01/18/2015 1:56 PM.

Denny G
Sandwich, IL