How rare are 273 Commando factory pistons .030 over ?
I found this on this site and I believe those are the same numbers on mine.
[SOLD] - 273 High Performance .030 pistons used
As someone here said and the poster of this pic says, they were TRW pistons and I believe that is what Chrysler used.
I'm still not sure that they didn't use these .030 over on the assembly line if needed .