5.3l 383 vs 6.2l

[Malice]

So I've been reading every article out in regards to the 5.3l. To get some serious power out of it exctra displacement seems to be the best way to do it. My question is a 5.3 bored and stroked to 383 vs a 6.2l which is about 378 ci. Why wouldn't someone just save the time and money and effort and buy the 6.2l? With only about 5ci difference why wouldn't anyone go through the effort of the 5.3l. I know you can get the 5.3 block a lot cheaper but after the modifications wouldn't the price be more for the 5.3?

Is there much weight difference in the 6.2? Wouldn't the stroke be the same after you changed the 5.3 to. 4" stroke?