13:1 Compression Pistons in 340 Small Block

Explain how that piston is so obsolete compared to a piston from today, with the same pin height and dome volume.

If you are paying attention, they aren't that much heavier, have a standard ring package and the skirt design is actually pretty damn good.

It's not nearly as obsolete as some of you seem to think it is.
Well the current trend is flat top pistons and small combustion chambers which work better than the old domed pistons and open chamber heads. Figure the rest out your self I'm not your mom