I have some cheap 292 cast pistons on my site.
www.12bolt.comHad a guy call me a few weeks ago that trashed a piston (Ross). It was a rod problem. I sent him one from a set that is kept instock. Already ordered another set of the same build # and ordered a spare to put back in the set missing a piston. Charged him a bit more than 1 piston. There is also time involved to match the weight of the new piston to my set. Try to keep my customers rolling.