340 pistons in a 360?

A local Mopar buddy here has a 71 Cuda, 69 Road Runner, 69 Dodge Charger. He also has a 440 with a gear drive on an engine stand and a Dana 60 on his shop floor that that he says both came from a Dick Landy vehicle. He says he can use standard 340 dome pistons in an overbored 360, is that true? Thank you.