Aluminum 216 pistons are pretty expensive. People give me good condition std. bore 235 pistons just to get them out of their way when they rebuild their engines, and I recycle them into 216 engine buildups. That usually makes the cost of a rebore job a moot point- - - -especially since I've got a couple of Van Norman boring bars and a "retired old man" work schedule!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!