13:1 Compression Pistons in 340 Small Block

Sell these pistons to somebody building a drag race engine and buy the proper ones for your needs.
Best answer yet! A set of lightweight pistons and a longer stroke crank (3.58-3.79 with J heads) makes a whole lot more sense and will live a whole lot longer. It will also do it without making you have to grab your ankles and smile in maintenance and fuel costs. The overkill street builds are fun for a while but are pretty useless as any kind of driver. It will grow old quickly and you’ll be looking to detune it to make more of a driver out of it. Seen it many times.