Newbie 318 piston question

Most doing a 318 aren't rebuilding it, most want bolt on performance, or it's a low dollar build so they use stock type pistons.
But ya if you crank up the cr add some good heads and cam build it like it's a 340 no reason really not to beside there's 360 out there.

Here a 477 hp 318
Iron-Headed Mopar 318 Magnum Engine- Popular Hot Rodding Magazine