340 or 360?

Maybe for production blocks, but the X block is a race block, the predecessor to the R blocks.
The chevy guys argue over 327,350,and 400 which is the best.
The ford guys argue over the windsors and clevelands
It's all just bench racing and personal preference and something to discuss and keep us busy till spring, when we can do what we love best, drive our favorite Mopars whatever flavor you love.